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TTC Timmler Technology
TTC Active and Passive Chilled Beams Planning Documentationfor Engineers and Plant Contractors
Contents | FeaturesActive TTC Chilled Beams
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General Information Pages 4–7
Order key for TTC Chilled Beams ·Notes in air conditioning ·Diagram of an air conditioned space ·
Controls and schematic diagram of TTC ·chilled beams
TTC Cassette Chilled Beam ACBLQ Pages 8–9
Installation in panelled ceilings ·Length and width (592 x 592 mm) ·Height 225 mm, side supply air ·connectionAir adjustment valve as standard ·Air discharge on 4 sides, individually ·adjustableRecirculating air intake through ·perforated cover
White casing (coating similar to RAL 9010) ·3 capacity levels ·
·Capacity at ∆m = 10 K, air volume flow 80 m³⁄h (4-sided air discharge); capacity level 9Cooling capacity Q̇K(tot) = 500 WSound pressure level < 25 dB (A)
TTC Chilled Beam ACBLZ Pages 10–11
Installation preferably in panelled ceilings ·Low height 146 mm, top or end supply ·air connectionAir adjustment valve as standard ·Air discharge 2-sided ·Power level adjustable via the air ·adjustment valveWhite casing (coating similar to RAL 9010) ·
Capacity at ∆m = 10 K, air volume flow 40 m³⁄h (2-sided air discharge); capacity level 1, setting 5Cooling capacity Q̇K(tot) = 500 W Sound pressure level < 25 dB (A) for a chilled beam length of 12 dm
TTC Chilled Beam ACBLA Pages 12–13
Installation preferably underneath the ·ceilingBuilt-in air passage grill ·Length ≈ 1200/1800/2400 mm ·Height 171 mm, Width 364 mm ·Recirculating air intake through ·perforated coverSupply air discharge on the side at the top ·Supply air inlet on the end ·
White casing (coating similar to RAL 9010) ·4 capacity levels ·
Capacity at ∆m = 10 K, air volume flow 60 m³⁄h (2-sided air discharge); capacity level 8Cooling capacity q̇ K(spec) = 540 W/mSound pressure level < 25 dB (A) for a chilled beam length of 24 dm
TTC Chilled Beam ACBLE Pages 14–17
Installation preferably in panelled ceilings ·Built-in air passage grill ·Length ≈ 1200/1800/2400 mm ·Height 165 mm, Width 592 mm ·Recirculating air intake through ·perforated coverSupply air discharge horizontally under- ·neath the ceilingSupply air inlet on the end ·
White casing (coating similar to RAL 9010) ·4 capacity levels ·
Capacity at ∆m = 10 K, air volume flow 60 m³⁄h (2-sided air discharge); capacity level 8Cooling capacity q̇ K(spec) = 540 W/mSound pressure level < 25 dB (A) for a chilled beam length of 24 dm
TTC Chilled Beam ACBLO Pages 18–19
Installation preferably in panelled ceilings ·Cover can be folded up or down ·Length ≈ 1200/1800/2400 mm ·Height 255 mm, width 595 mm ·Recirculating air inlet at the top ·Supply air discharge horizontally under- ·neath the ceilingSupply air inlet on the end ·
White casing (coating similar to RAL 9010) ·3 capacity levels ·
Capacity at ∆m = 10 K, air volume flow 50 m³⁄h (2-sided air discharge); capacity level 9Cooling capacity q̇ K(spec) = 835W/mSound pressure level < 25 dB (A) for a chilled beam length of 24 dm
i
2
Contents | FeaturesPassive TTC Chilled Beams
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3
TTC Chilled Beam AECAK Pages 20–21
Installation underneath a ceiling ·Built-in air passage grill ·Length 10–40 dm in 5 dm-increments ·Height 142 mm ·Width 45/60 cm ·Recirculating air inlet at the top ·Cool air discharge at the bottom ·White casing (coating similar to RAL 9010) ·
Capacity at ∆m = 10 KWidth 45 cm Capacity q̇K(tot) = 275 W/mWidth 60 cmCooling capacity q̇ K(tot) = 415 W/m
TTC Chilled Beam AECBK Pages 22–23
Installation underneath a ceiling ·Built-in air passage grill ·Length 10–40 dm in 5 dm-increments ·Height 156 mm ·Width 45/60 cm ·Recirculating air inlet at the top ·Cool air discharge at the bottom ·White casing (coating similar to RAL 9010) ·
Capacity at ∆m = 10 KWidth 45 cm Capacity q̇K(tot) = 340 W/mWidth 60 cmCooling capacity q̇ K(tot) = 470 W/m
TTC Chilled Beam AECBU Pages 24–25
Installation underneath a panelled ceiling ·Built-in air passage grill ·Length 10–40 dm in 5 dm-increments ·Height 122 mm ·Width 45/60 cm ·Recirculating air inlet at the top ·Cool air discharge at the bottom ·Casing made of galvanized steel plate ·
Capacity at ∆m = 10 KWidth 45 cm Capacity q̇K(tot) = 265 W/mWidth 60 cmCooling capacity q̇ K(tot) = 355 W/m
TTC Chilled Beam AECEU Pages 26–27
Installation underneath a panelled ceiling ·High performance chilled beam (ideal for ·sound and TV studios)Length 10–40 dm in 5 dm-increments ·Height 187 mm ·Width 45/60 cm ·Recirculating air inlet at the top ·Cool air discharge at the bottom ·Casing made of galvanized steel plate ·
Capacity at ∆m = 10 KWidth 45 cm Capacity q̇K(tot) = 425 W/mWidth 60 cmCooling capacity q̇ K(tot) = 575 W/m
Design Example for Passive Chilled Beam & Mollier-hx-Diagram Pages 28–29
Products in Use | Project Examples and combinated with LED light Pages 30–31
© 2010 TTC Timmler Technology GmbH
This document or any part thereof may not be
reprinted, copied, or translated and figures and
diagrams may not be used without prior permission
in writing from TTC Timmler Technology GmbH.
Project »Dexia Bank« ·Project »Altstadtpalais« ·Example Wall/Ceiling Installation ·Combination with Multifunctional ·Ceiling Covers and LED Lights
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ACBLO 30 60 2 H 6 B
Order Key for Floor Units
Air discharge directionS = Vertical air discharge (passive chilled beams)B = 2-sided air discharge (in air flow direction)R = Single-sided air discharge to the right (in air flow direction)L = Single-sided air discharge to the left (in air flow direction) 4 = 4-sided air discharge
Order Key for TTC Chilled Beams
ModelsActive Chilled Beams Passive Chilled Beams
ACBLQ AECAK
ACBLZ AECBK
ACBLA AECBU
ACBLE AECEU
ACBLO
Active Chilled Beams Passive Chilled BeamsType ACBLQ ACBLZ ACBLA ACBLE ACBLO AECAK AECBK AECBU AECEU
600 -- -- -- -- 1000 1000 1000 1000
-- 1200 1200 1200 1200 1500 1500 1500 1500
-- -- 1800 1800 1800 2000 2000 2000 2000
-- -- 2400 2400 2400 2500 2500 2500 2500
-- -- -- -- -- 3000 3000 3000 3000
-- -- -- -- -- 3500 3500 3500 3500
-- -- -- -- -- 4000 4000 4000 4000
Uni
t le
ngth
Lto
t[mm
]
Unit length Ltot[mm]
Unit width Wtot[mm]36 = for depth 362 mm
45 = for depth 455 mm
60 = for depth 605 and 592 mm
Pipe divisions1 (2, 3, 4 on request)
Water supply connectionH = HorizontalV = Vertical
*Power level 6 on request
Type ACBLQ ACBLZ ACBLA ACBLE ACBLO AECAK AECBK AECBU AECEU
-- -- -- -- -- 0 0 0 0
-- 1 -- -- -- -- -- -- --
6* -- 6* 6* 6* -- -- -- --
7 -- 7 7 7 -- -- -- --
-- -- 8 8 -- -- -- -- --
9 -- 9 9 9 -- -- -- --
12 -- 12 12 12 -- -- -- --
Active Chilled Beams Passive Chilled Beams
Pow
er L
evel
Power level
4
or the evaporation of sweat (latent heat discharge) as illustrated in Fig. 5.3).
Type of clothing worn ·Air temperature ·Relative humidity ·Air flow ·Temperature of the surrounding surfaces ·Level of a person’s physical activity, etc. ·
Is ventilation necessary?The German Standard DIN 1946/Part 2/Section 3.2 makes outside air flow rates compulsory for enclosed spaces so that people who work in these rooms are sup-plied with pre-conditioned outside air.In addition, a central ventilation system will remove the latent cooling percentage (air humidity) and any smells from the rooms.However, the air volume flow may be re-duced to the legal requirement. This would result in a substantial reduction in the size of the ventilation system needed.
The benefit of air conditioning Our thermal well-being depends on a num- ber of factors. Our body will always try to balance its heat regulation so that all organs can work properly. In order for our organs and circulation to perform at opti- mum level our body temperature needs to remain at a constant 37 0C. This can only be achieved if both all sources that may generate heat (such as muscle activity, the burning of calories, etc.) and all ways to get rid of surplus heat (such as chivering, thin clothes, etc.) are in balance. Studies by P. O. Fanger have shown that people will only feel comfortable if they are in a neu-tral thermal state (Fig. 5.2), i.e. their ideal temperature is not disturbed. However, this ideal temperature may vary slightly from person to person.
Any deviation from this ideal temperature will result in a drop in performance from this person and reduce his productivity as well as his sense of well-being (Fig. 5.1). This important fact should always be taken into account when making an investment.Depending on ambient temperature, cloth-ing and Type of activity performed we regulate our body heat through convection and radiation (sensible heat discharge)
Why air conditioning?Su
bjec
t to
tec
hnic
al c
hang
es ·
Issu
ed 1
0/20
10
5.2
»Amin« minimum distances between active chilled beams arranged in parallel
5 6 7 8 9 1 0 1 1 1 2 1 3 1 4 1 5 1 6
7
6
5
4
3
2
1
0l/(s·m)
2 0 2 5 3 0 3 5 4 0 4 5 5 0 5 5m3/(h·m)23,5
1,2
v L = 0
,2 m/s
v L = 0,2
5 m/s
5.4 5
100
90
80
70
60
50
40
30
0 +1 +2 +3 +4 +5 +6-6 -5 -4 -3 -2 -1
Deviation from the ideal temperature [°C]
5.1
Perf
orm
ance
dro
p [%
]
How do chilled beams work?TTC chilled beams always directly affect the air that circulates in a room and any heat sources present. A chilled beam’s cooling capacity is always supplied to the room in the form of a natural no-draught convection. This ensures a high level of comfort as regards the protection from draughts and noises.TTC chilled beams are available in two designs:
Active chilled beams with air supply ·connectionPassive chilled beams ·
Active chilled beams have a constant air flow rate because of the central ventilation system. Passive chilled beams change their air flow rate and cooling capacity dependent on the temperature difference between the room temperature and the surface temperature of the chilled beams.For this Type of chilled beam the supply air flow rate, a compulsory requirement of the German Standard DIN 1946/Part 2/Section 3.2, must be provided using an additional ventilation system.
Note!Please refer to our planning document »TTC Silent Gravity Cooling Modultherm« where you will find further information on how temperature differences cause people discomfort and how well various air condi-tioning systems are accepted.
10 14 18 22 26 30 34 38
0
20
40
60
80
100
120
140
160
Radiation
Convection
Evaporation
Air temperature [°C]
5.3
Hea
t di
scha
rge
[W]
10 15 20 25 3010
15
20
25
•
23
21
16
k = 0,
5 W/m
2•K19 0C
k = 1,
0 W/m
2•K
k = 1,
5 W/m
2•K
ta = -10°C
te = 21 0C
23°C
Inte
rior w
all t
empe
ratu
re [°
C]
Deviation from the ideal temperature [°C]Comfort zone (Source: Paperback »Heizung und Kli-matechnik«, by Recknagel, Sprenger & Höhnmann)te = Perceived temperature, ta = Outdoor tempera-ture, k = Heat transfer rate of the walls
If several active chilled beams are to be ar-ranged in parallel the units must be spaced a minimum distance »Amin« apart.To roughly calculate the distance between the units you can use the formulaAmin = 1,4 · aL and Fig. 5.4. The diagram applies to the one-sided air discharge only; for two-sided air discharge you will need to halve the air volume flow VL(specif) when you determine theAmin spacing.
Example: Chilled beam with two-sided air discharge, VL(specif) = 47 (m³/h·m), required air flow rate in the roomvL = 0,2 m
aL = 47 m³/(h·m) · 0,5 = 23,5 m³/(h·m)equals: aL = 1,2 mThe »Amin« spacing between the chilled beams can now be calculated as follows:Amin = aL[m] · 1,4 = 1,2 m · 1,4 = 1,68 mIf there are very high thermal loads the parameter »Amin« can be reduced.
Specific air volume flow
Refe
renc
e di
stan
ce a
L [m
]
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Products in Use | Examples
••
•~
~
Air conditioning a room using TTC Chilled Beams
[1] TTC chilled beam, e.g. model ACBLE[2] Cold water return[3] Flexible pipe for the pre-conditioned outside air [4] Cold water flow[5] Dew sensor to prevent the tempera- ture in the chilled beam from falling below the dew point (to be installed in the cold water flow »inside« the chilled beam to pick up the condition in the room)[6] Cooling mode control valve[7] Sequential controller for heating or cooling mode with a neutral zone between the two modes[8] Heating flow[9] Heating return [10] Heating mode control valve (inside the floor channel)[11] Radiator, e.g. TTC underfloor trenchheater[12] Cold water return[13] Cold water flow
[10] [9]
[AL][1] [5] [12][6]
[11]
[13]
[8]
[7]
6.16
Cooling, Heating, Ventilation Fig. 6.1 shows an example how a room can be fully air conditioned – cooled, heat-ed and ventilated – with TTC model ACBLE chilled beams and underfloor convectors for the heating mode.
[2] [3] [4]
Z Z Z
FL
UU
Heat transfer through people [W]
Activity ≈ W Level of Activity ≈ W/m³
Sleeping 60 –– 35
Lying down 80 –– 45
Normal office work 100 I 55
Typing 150 II 85
Walking slowly 3 km/h 200 III 110
Walking fast 6 km/h 250 IV
Heavy physical work ≥170
AL Supply air to ventilate the room and possibly to absorb humidity from the room (minimum supply air flow rates need to be complied with in line with German Standard DIN 1946/Part 2/ Section 3.2)FL Air passage grill to remove hygienically
tainted recirculating air (escaping air)U Warm recirculating airZ Outside and recirculating air that has been cooled in the chilled beam
The illustration does not show the air ·handling unit required to pre-condition the primary air supply.To supply the chilled beams with cold ·water you can either use suitable cold
water generators in heat pump mode or dry cooling towers to benefit from energy saving »freecooling«.
You will find more information on how to correctly control chilled beams on page 7.
Chilled beams are generally controlled with individual room or zone thermostats. This aims to satisfy the individual needs of the users. Room thermostats are installed to sequentially control the cooling and heating valve. This prevents any overlap between the heating and the cooling mode. The thermoelectrical actuators are applied to the room thermostat which is used to control the system based on a variance comparison.As the chilled beams are to remove sensible cooling loads only, a drop below the dew point must be avoided. It makes sense to install a dew sensor in the control circuit which will close the cooling valve if a drop below the dew point is detected.The chilled beams will discharge the cool air in a very natural way. The difference in temperature between the air in the room and on the surface of the air
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Operation and Function
7
cooler (floating temperature difference) automatically controls the level of cool air that is discharged.A two-point valve control (OPEN-CLOSED) for the chilled beams is totally adequate and has the benefit of providing you with a considerable cost saving.
Components neededA zone can be controlled (sequential con-trol) with the following components:
1 off valve box (valve gate), suitable for ·the installation of an electrical actuator1 off valve box (three-way valve) for ·the zone mixing control, suitable for the installation of an electrical actuator2 off 24 V actuators (currentless, nor- ·mally closed)1 off dew sensor ·1 off room thermostat ·1 off chilled beam controller, suitable for ·
heating/cooling mode and the connec-tion of a dew sensor1 off circulating pump to control the ·flow temperature
Note!Please do not hesitate to contact us with any questions you might have concerning your planning requirements.
Controls and schematic diagram for an air conditioning system using chilled beams in cooling mode
[1] TTC chilled beams (active)[2] Sequential control for one zone to be air conditioned[3] Room thermostat or room sensor for cooling/heating (incl. a neutral zone)[4] Overflow valve to avoid an increase of pressure in the pipe system
7.1
~
~
~~
~~
~
RT
[10]
[9]
[1]
[5][6]
[13]
[8][7]
[2]
[3]
[4]
[9]
[9]
[10]
[11]
[12]
[14]
[15]
Central unit with heat recovery (as an example)
Note!This diagram does not show the mandatory heaters.
[5] Three-way control valve for one zone[6] Secondary pump for one cooling circuit[7] Zone control valve with thermoelectrical actuator (currentless, normally closed)[8] Dew sensor to monitor the dew point[9] Electrical stop valves (OPEN-CLOSED) [10] Water circulating pumps for operation
with a cooling tower[11] Dry cooling tower[12] Three-way switching valve[13] Water cooled cold water set[14] Three-way control-valve to cool the outside air[15] Plate heat exchanger
5 6 7 8 9 10 11 12
700
650
600
550
500
450
400
350
300
250
200
150
100
PL. 7
36 m3/h
40 m3/h
50 m3/h
60 m3/h
70 m3/h
80 m3/h90
m3/h
8.5 Temperature difference ∆m [K]
Cool
ing
capa
city
[W]
Cooling capacity ACBLQ 0660 | Power level 7
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8.1
Dimensions
8.3
8.2 ACBLQ 0660 side view
Cassette Chilled Beam ACBLQ 0660 (active)Specification | Capacity Charts
The sound pressure level [dB(A)] refers to an effective room area of 10 m² Sabine and a reverbation period of 0,5 seconds.
Capacity charts, 4-sided air discharge
8
D B
A
C
350
300
250
200
550
500
450
400
700
650
600 100 m3/
h120
m3/h
80 m3/h
72 m3/h
5 6 7 8 9 10 11 12
PL. 9
8.6 Temperature difference ∆m [K]
Cool
ing
capa
city
[W]
Cooling capacity ACBLQ 0660 | Power level 9
350
300
250
200
5 6 7 8 9 10 11 12
550
500
450
400
600LPL 12 140
m3/h
130 m3/
h
120 m3/h
100 m3/h
90 m3/h
8.7 Temperature difference ∆m [K]
Cool
ing
capa
city
[W]
Cooling capacity ACBLQ 0660 | Power level 12
1000
500
300
200
100
50
10
20
150
3025 40 50 60 70 80 100 150 200 250
700
400
30
70
40 dB(A)
25 dB(A)
35 dB(A)
30 dB(A)
Level
7/4
Leve
l 9/4
Level
12/4
ACBLQ
8.4 Air volume flow VL [m³/h]
Air-
side
d pr
essu
re d
iffe
renc
e ∆
p L [P
a]
Air resistance, Sound pressure level*)Pressure drop [Pa], sound pressure level dB(A)Power level 7, 9 and 12 (100 % open)
8.2–8.3
Note!4 air discharge directions for the air supply. Air adjustment valves which come as standard allow 4 different settings for the air volume flow. The power levels in charts 8.4 to 8.7 apply only when the air adjustment valves are fully open (100 %).
Design features for model ACBLQ
The cassette chilled beam model ACBLQ is an active chilled beam. It’s design and operation combines a ceiling air discharge with a decentralized cooling unit.This means that none of the usual ad-ditional air discharge points are required which in turn helps to optimize both the investment and the energy costs. The de-sign allows for trouble-free installation in standard panelled ceilings which makes the unit suitable for a whole host of applica-tions. The units can be installed flush in panelled ceilings.
Air coolerThe air cooler is made of copper pipes covered with aluminium fins. To ensure a continuous heat transfer the fins and the pipes are bonded together..
The water quality of the coolant must ·meet the requirements of the German Standard VDI 2035Maximum operating pressure 6 bar* ·Maximum operating temperature 90°C* ·
*Further installation options on request
ConnectionsThe connecting pipes projects horizontally »H« from the casing. The copper con-nection pipes have a diameter of 15 mm. The connections are suitable for soldered joints, clamping joints and crimped con-nections.
Casing The casing is made of coated steel plate (the colour is white, similar to RAL 9010). The cover can be removed for maintenance purposes. For dimensions see Fig. 8.2. A ø 125 mm air inlet connector is located at the top of the casing. Upon request the unit can also be supplied with this connec-tor located at the side.An air adjustment to individually control the supply air volume flows on each air discharge side comes as standard.
Optionsø 125 mm air inlet connector located at ·the side of the unit
ApplicationsOffices, open plan offices, administrative buildings, restaurants, showrooms, galler-ies, supermarkets, department stores, etc.
[1] Panelled ceiling[2] Perforated cover to suck in recirculating air[U] Warm recirculating air[Z] Cooled supply air
* Note!You can calculate the water-sided pressure difference [kPa] of the panelled chilled beam, model ACBLQ, using the water volume flow (Formula 4) in Fig. 9.2.Further pressure optimization on request.
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Cassette Chilled Beam ACBLQ 0660 (active)Design Features | Installation Example
9
9.1 Installation example and function
[1][2]
Z
U
Z
Flush installation in panelled ceiling | Central recirculating air inlet
5
4
3
2
1
0
8
7
6
0 200 400100 300 500kg/h
0 0,05 0,10 0,15kg/s
ACBLQ 0660
10
9
1 pi
pe d
ivis
ion
9.2 Water volume flow ṁw [kg/h]
Wat
er-s
ided
pre
ssur
e dr
op [k
Pa]
Water-sided pressure drop* [∆pw]
Formula 4 to roughly estimate the water volume flow ṁW
Formula 1 to calculate the average temperature difference ∆m
tW1 [°C] + tW2 [°C]2∆m
[K] = tR -Q· k(tot) [kW]tW2 - tW1 [K]
ṁW[kg/h] = 860 ·
Cool
ing
capa
city
[W]
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10
5 6 7 8 9 10 11 12
700
600
500
400
300
200
100
ACBLZ / 0
20 m3/h
40 m3/h
60 m3/h
50
10.5
Specif. cooling capacity ACBLZ 1260.1.2Air adjustment valve in position 0
10.1
Chilled Beam ACBLZ (active)Specification | Capacity Charts
Capacity charts 2-sided air discharge
5 6 7 8 9 10 11 12
600
500
400
300
200
100
ACBLZ / 5
20 m3/h
40 m3/h
60 m3/h
50
10.6
Air adjustment valve in position 5
5 6 7 8 9 10 11 12
600
500
400
300
200
100
ACBLZ / 10
20 m3/h
40 m3/h
60 m3/h
50
10.7
Air adjustment valve in position 10
alternative supply air connection
AL
594297
186 203146
130
56
146
∅15 ∅100
200
9x60≈50 1260
∅15
Dimensions
10.2
0 50 100 150 200 250 300 350
0 0,05 0,10
ACBLZ
0
1
2
3
4
5
6
7
8
9
10
kg/h
kg/s
1 Ro
hrte
ilung
10.4 Water volume flow ṁW [kg/h]
Wat
er-s
ided
pre
ssur
e dr
op [k
Pa/m
]
Water-sided pressure difference [∆pw]
20 30 40 60 80 100 130m3/h4050
100
200
300
500
1000
30 dB(A)
25 dB(A)
35 dB(A)
40 dB(A)
5025
Positio
n 0
Positio
n 5
Positio
n 10
Air volume flow vL [m³/h]
Air-
side
d pr
essu
re d
iffe
renc
e ∆
pL [P
a]
Air resistance | Sound pressure level*)
10.8
Technical data | Weights
Type L(tot)[mm]
L(finned)[mm]
Weight[kg]
ACBLZ 1260 1193 1000 24
10.3
Temperature difference ∆m [K]
Temperature difference ∆m [K]
Cool
ing
capa
city
[W]
Temperature difference ∆m [K]
Cool
ing
capa
city
[W]
Water-sided1 pipe division
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11
Design features for model ACBLZ
The panelled chilled beam model ACBLZ is an active air conditioning unit. As it requires a supply air flow to operate it automatically meets the requirements regarding the ventilation of a room. An air adjustment valve to control the air flow volume comes as standard. Installation of the unit is in panelled ceilings. An additional air passage grill is not required.The structural design of the units will be explained in the following.
Air coolerThe air cooler is made of copper pipes covered with aluminium fins. To ensure a continuous heat transfer the fins and the pipes are bonded together.
The water quality of the coolant must ·meet the requirements of the German Standard VDI 2035Maximum operating pressure 6 bar ·Maximum operating temperature 90°C ·
ConnectionsThe chilled beams will be supplied with »H« (horizontal) connection pipes only. The connection pipes average diameter is
ø 15 mm with one pipe division ·ø 22 mm with two or more pipe divisions. ·
The supply air connection (ø 100 mm) is located at the end or alternatively at the top of the unit.
CasingThe casing is made of coated steel plate (the colour is white, similar to RAL 9010). The perforated recirculating air inlet cover can be removed for maintenance purposes. For dimensions see Fig. 10.2. Two mounting rails run along the top of the whole unit. The mounting brackets which are included in the delivery are at-tached to these rails.
OptionsIntegrated light fixture ·
Installation notesIf the chilled beams are to be arranged in parallel the installation requirements illus-trated in Fig. 11.2 must be complied with to ensure a trouble-free operation.
ApplicationsOffices, open plan offices, administrative buildings, restaurants, showrooms, sound and TV studios, supermarkets, department stores, etc.
Chilled Beams ACBLZ (active)Design Features | Installation Example
11.1 Installation example and function
Z
U
Z
Flush installation in panelled ceiling
BAmin.≥ 0,7 · aL BAmin.≥ 1,4 · aL *) Amin.≥ 0,7 · aL
11.2
»Amin« minimum distances between chilled beams arranged in parallel
[U] Warm recirculating air entering the ch. b.[Z] Cooled recirculating and supply air leaving the ch. b.[AL] Centrally conditioned outside air
U
AL
Model ACBLZ chilled beams are installed in panelled ceilings only. An additional air pas-sage grill is not required.If a number of chilled beams are needed to meet the cooling requirements of the room the minimum installation distances given in Fig. 11.2 must be observed.
[B] Width of the chilled beam, see Fig. 10.2[Amin] Minimum distance between two chilled beams or a chilled beam and a wall, in line with the air volume flow, see Fig. 5.4
Note!You can calculate the water-sided pressure difference [kPa] of the panelled chilled beam, model ACBLZ, using the water volume flow (Formula 4) in Fig. 10.4.
2-sided air discharge
*)aL = Reference spacing (see page 5)
Supply air channel
tW1 [°C] + tW2 [°C]2∆m
[K] = tR -Q· K(tot) [kW]tW2 - tW1 [K]
ṁW[kg/h] = 860 ·
Formula 4 to roughly estimate the water volume flow ṁW
Formula 1 to calculate the average temperature difference ∆m
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Specif. cooling capacity [q̇K(spez)] ACBLA __36
12.1
Chilled Beam ACBLA (active)Specification | Capacity Charts
Capacity Charts 2-sided air discharge
5 6 7 8 9 10 11 12
700
600
500
400
300
200
100
PL. / 8
50
60 m3/
h·m
40 m3/h·m
20 m3/h·m
12.6
Cool
ing
capa
city
[W/m
]
Power level 8
5 6 7 8 9 10 11 12
600
500
400
300
200
100
PL. / 9
50
60 m3/h·m
40 m3/h·m
20 m3/h·m
12.7
Cool
ing
capa
city
[W/m
]
Power level 9
364182
18630
8641
171
∅15
∅15 ∅125
L(ges.)
170
9x60�50
159
Water-sided1 pipe division
AL
Dimensions
12.2
5
4
3
2
1
0
8
7
6
0 100 200 300 400 45050 150 250 350kg/hkg/s
0 0,05 0,10 0,13
ACBLA 36
12.4 Water volume flow ṁw [kg/h]
Wat
er-s
ided
pre
ssur
e di
ffer
ence
[kPa
/m]
Water-sided pressure difference [∆pw]
Technical data | Weights
Type L(tot)[mm]
L(finned)[mm]
Weight[kg]
ACBLE 1236 1193 1000 24
ACBLE 1836 1793 1600 36
ACBLE 2436 2393 2200 48
ACBLE 3036 2993 2800 60
12.3
5 6 7 8 9 10 11 12
500
400
300
200
100
PL. / 12
50
60 m3/h·m
40 m3/h·m
20 m3/h·m
12.8 Temperature difference ∆m [K]
Cool
ing
capa
city
[W/m
]
Power level 12
5 6 7 8 9 10 11 12
700
600
500
400
300
200
100
800
PL. / 7
50
60 m3/
h·m
40 m3/h·m
20 m3/h·m
12.5
Cool
ing
capa
city
[W/m
]
Power level 7
Temperature difference ∆m [K]
Temperature difference ∆m [K]
Temperature difference ∆m [K]
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Design features for model ACBLA
Model ACBLA panelled chilled beams are active air conditioning units. As they require a supply air flow to operate they automatically meet the requirements regarding the ventilation of a room. Instal-lation of the units is underneath ceilings only. An additional air passage grill is not required. The structural design of the units will be explained in the following.
Air coolerThe air cooler is made of copper pipes covered with aluminium fins. To ensure a continuous heat transfer the fins and the pipes are bonded together.
The water quality of the coolant must ·meet the requirements of the German Standard VDI 2035Maximum operating pressure 6 bar ·Maximum operating temperature 90°C ·
ConnectionsThe chilled beams will be supplied with »H« (horizontal) connection pipes only. The connection pipes average diameter is
ø 15 mm with one pipe division ·ø 22 mm with two or more pipe divisions. ·
The supply air connection (ø 100 mm) is located at the end or alternatively at the top of the unit.
CasingThe casing is made of coated steel plate (the colour is white, similar to RAL 9010). The perforated recirculating air inlet cover can be removed for maintenance purposes. For dimensions see Fig. 11.2. Two mounting rails run along the top of the whole unit. The mounting brackets which are included in the delivery are at-tached to these rails.
OptionsAvailable unit lengths: 12–36 dm in 6 dm ·increments
Installation notesModel ACBLA chilled beams are always installed directly underneath the ceiling. If the chilled beams are to be arranged in parallel the installation requirements illus-trated in Fig. 13.2 must be complied with to ensure a trouble-free operation.
ApplicationsOffices, open plan offices, administrative buildings, restaurants, showrooms, sound and TV studios, supermarkets, department stores, etc.
Chilled Beam ACBLA (active)Design Features | Installation Example
13.1 Installation example and function
Z
U
Z
Installation underneath a ceiling
BBAmin 0,7 · aL Amin 1,4 · aL *) Amin 0,7 · aL
[U] Warm recirculating air entering the ch. b.[Z] Cooled recirculating and supply air leaving the ch. b.[AL] Centrally conditioned outside air
U
AL
Model ACBLA chilled beams are always installed underneath a ceiling. An additional air passage grill is not required.If a number of chilled beams are needed to meet the cooling requirements of the room the minimum installation distances given in Fig. 13.2 must be observed.
Z
Z
Z
Z
U
»Amin« Minimum distances between chilled beams arranged in parallel
[B] Width of the chilled beam, see Fig. 12.2[Amin] Minimum distance between two chilled beams or a chilled beam and a wall, in line with the air volume flow, see Fig. 5.4
Note!You can calculate the water-sided pressure difference [kPa] of the panelled chilled beam, model ACBLZ, using the water volume flow (Formula 4) in Fig. 12.4; please use Fig. 17.1–17.4 to calculate the sound pressure level.
2-sided air discharge
*)aL = Reference spacing (see page 5)
13.2
tW1 [°C] + tW2 [°C]2∆m
[K] = tR -q̇ (spezif) [kW/m] · L(finned)[m]
tW2 - tW1 [K]ṁW[kg/h] = 860 ·
Formula 4 to roughly estimate the water volume flow ṁW
Formula 1 to calculate the average temperature difference ∆m
350
165
350439,14
592
135
1054,9
1192
ø98
332,9
7,6
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Specif. cooling capacity [q̇k(spez)] ACBLE __60
14.1
Chilled Beam ACBLE (active)Specification | Capacity Charts
Capacity Charts 2-sided air discharge
5 6 7 8 9 10 11 12
700
600
500
400
300
200
100
PL. / 8
50
60 m3/
h·m
40 m3/h·m
20 m3/h·m
14.6 Temperature difference ∆m [K]
Cool
ing
capa
city
[W/m
]
Power level 8
5 6 7 8 9 10 11 12
600
500
400
300
200
100
PL. / 9
50
60 m3/h·m
40 m3/h·m
20 m3/h·m
14.7 Temperature difference ∆m [K]
Cool
ing
capa
city
[W/m
]
Power level 9
Dimensions
14.2
5
4
3
2
1
0
8
7
6
0 100 200 300 400 45050 150 250 350kg/hkg/s
0 0,05 0,10 0,13
ACBLE 60
1 pi
pe d
ivisio
n
14.4 Water volume flow ṁw [kg/h]
Wat
er-s
ided
pre
ssur
e di
ffer
ence
[kPa
/m]
Water-sided pressure difference [∆pw]
Technical data | Weights
Type L(tot)[mm]
L(finned)[mm]
Weight[kg]
ACBLE 1260 1193 1000 40
ACBLE 1860 1793 1600 60
ACBLE 2460 2393 2200 80
ACBLE 3060 2993 2800 100
14.3
5 6 7 8 9 10 11 12
500
400
300
200
100
PL. / 12
50
60 m3/h·m
40 m3/h·m
20 m3/h·m
14.8 Temperature difference ∆m [K]
Cool
ing
capa
city
[W/m
]
Power level 12
5 6 7 8 9 10 11 12
700
600
500
400
300
200
100
800
PL. / 7
50
60 m3/
h·m
40 m3/h·m
20 m3/h·m
14.5 Temperature difference ∆m [K]
Cool
ing
capa
city
[W/m
]
Power level 7
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Design features for model ACBLE
Model ACBLE panelled chilled beams are active air conditioning units. As they require a supply air flow to operate they automatically meet the requirements re-garding the ventilation of a room. Installa-tion of the units is in panelled ceilings. An additional air passage grill is not required. The structural design of the units will be explained in the following.
Air coolerThe air cooler is made of copper pipes covered with aluminium fins. To ensure a continuous heat transfer the fins and the pipes are bonded together.
The water quality of the coolant must ·meet the requirements of the German Standard VDI 2035Maximum operating pressure 6 bar ·Maximum operating temperature 90°C ·
ConnectionsThe chilled beams can be ordered with »H« (horizontal) or »V« (vertical) connection pipes only. The connection pipes average diameter is
ø 15 mm with one pipe division ·ø 22 mm with two or more pipe divisions. ·
The supply air connection (ø 100 mm) is located at the end or alternatively at the top of the unit.
CasingThe casing is made of coated steel plate (the colour is white, similar to RAL 9010). The perforated recirculating air inlet cover can be removed for maintenance purposes. For dimensions see Fig. 14.2. Two mounting rails run along the top of the whole unit. The mounting brackets which are included in the delivery are at-tached to these rails.
OptionsAvailable unit lengths: 12–36 dm in 6 dm ·increments
Installation notesIf the chilled beams are to be arranged in parallel the installation requirements illus-trated in Fig. 15.2 must be complied with to ensure a trouble-free operation.
ApplicationsOffices, open plan offices, administrative buildings, restaurants, showrooms, sound and TV studios, supermarkets, department stores, etc.
Chilled Beam ACBLE (active)Design Features | Installation Example
15.1 Installation example and function
U
Z
Installation in panelled ceiling
B BAmin.≥ 0,7 · aL Amin.≥ 1,4 · aL *) Amin.≥ 0,7 · aL
U
AL
Model ACBLE chilled beams are always installed flush in panelled ceilings. An additional air passage grill is not required.If a number of chilled beams are needed to meet the cooling requirements of the room the minimum installation distances given in Fig. 15.2 must be observed.
Note!Other installation options on request.
Z
Z
»Amin« Minimum distance between two chilled beams arranged in parallel
[B] Width of the chilled beam, see Fig. 14.2[Amin] Minimum distance between two chilled beams or a chilled beam and a wall, in line with the air volume flow, see Fig. 5.4
Note!You can calculate the water-sided pressure difference [kPa] of the panelled chilled beam, model ACBLE, using the water volume flow (Formula 4) in Fig. 14.4; please use Fig. 16.4–16.7 and 17.1–17.4 to calculate the sound pressure level.
2-sided air discharge
*)aL = Reference spacing (see page 5)
15.2
Formula 4 to roughly estimate the water volume flow ṁw
q̇ k(spezif) [kW/m] · L(finned)[m](tW2 - tW1) [K]
ṁW[kg/h] = 860 ·
Supply air channel
[U] Warm recirculating air entering the ch. b.[Z] Cooled recirculating and supply air leaving the ch. b.[AL] Centrally conditioned outside air
Temperature difference ∆m [K]
Chilled Beam ACBLA/ACBLE (active) Specification | Capacity Charts for 1-sided Air Discharge
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16.15 6 7 8 9 10 11 12
700
600
500
400
300
200
100
PL. / 8
50
60 m3/
h·m
40 m3/h·m
20 m3/h·m
Temperature difference ∆m [K]
Cool
ing
capa
city
[W/m
]
16
Specif. cooling capacity [q· K(spezif)] | 1-sided air dischargePower level 8
5 6 7 8 9 10 11 12
600
500
400
300
200
100
PL. / 9
50
60 m3/h·m
40 m3/h·m
20 m3/h·m
16.2
Cool
ing
capa
city
[W/m
]
Power level 9
5 6 7 8 9 10 11 12
500
400
300
200
10050
PL. / 12
60 m3/h·m
40 m3/h·m
20 m3/h·m
16.3
Cool
ing
capa
city
[W/m
]
Power level 12
Note!*) The sound pressure level [dB(A)] refers to an effective room area of 10 m² Sabine and a reverbation period of 0,5 seconds.Other power levels on request.
Temperature difference ∆m [K]
Air resistance | Sound pressure level* | 1-sided air discharge
16.4
1000
500
300
200
100
50
30
20
150
20 30 40 60 80 100 200m3/h
ACBLA/E 12 dm
L
evel
12
40 dB(A)
35 dB(A)
30 dB(A)
25 dB(A) Le
vel 8
Le
vel 9
Air volume flow V· L
ACBLA 1236ACBLE 1260
Air volume flow V· L
1000
500
300
200
100
50
30
20
150
20 30 40 60 80 100 200m3/h
ACBLA/E 18 dm
Leve
l 12
40 dB(A)
35 dB(A)
30 dB(A)
25 dB(A)
Le
vel 8
Lev
el 9
16.5
ACBLA 1836ACBLE 1860
500
300
200
100
50
30
1520
150
30 40 60 80 100 200m3/h
Le
vel 8
-1 L
evel
9-1
Leve
l 12-
140 dB(A)
35 dB(A)
25 dB(A)
30 dB(A)
ACBLA/E 24 dm
700
16.6
ACBLA 2436ACBLE 2460
Air volume flow V· L
500
300
200
100
50
30
1520
150
25 30 40 60 80 100 200m3/h
Leve
l 12
Leve
l 8
Leve
l 9
ACBLA/E 30 dm700
16.7
ACBLA 3036ACBLE 3060
Air volume flow V· L
Air p
ress
ure
drop
∆p L
[Pa]
Air p
ress
ure
drop
∆p L
[Pa]
Air r
esis
tanc
e ∆
p L [P
a]Ai
r pre
ssur
e dr
op ∆
p L [P
a]
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Chilled Beam ACBLA/ACBLE (active) Air Resistance and Sound Pressure Level for 2-sided Air Discharge
17
Air resistance | Sound pressure level* | 2-sided air dischargeAi
r pre
ssur
e dr
op ∆
p L [P
a]
17.1
1000
500
300
200
100
50
30
1520
150
20 30 40 60 80 100 200m3/h
ACBLA/E 12 dm
35 dB[A]
40 dB[A]
30 dB[A]
25 dB[A]
Lev
el 7
Lev
el 8
Lev
el 9
Le
vel 1
2
Air volume flow V· L
ACBLA 1236ACBLE 1260
Air p
ress
ure
drop
∆p L
[Pa]
Air volume flow V· L
1000
500
300
200
100
50
30
1520
150
20 30 40 60 80 100 200m3/h
Le
vel 7
Leve
l 8
ACBLA/E 18 dm
35 dB[A]40 dB[A]
30 dB[A]
25 dB[A]
Leve
l 9
Leve
l 12
17.2
ACBLA 1836ACBLE 1860
20 30 40 60 80 100 200m3/h
1000
500
100
200
503020
10
5
ACBLA/E 24 dm
35 dB[A]40 dB[A]
30 dB[A]25 dB[A]
Leve
l 7
Leve
l 8
Leve
l 12 L
evel 9
17.3
AIr p
ress
ure
drop
∆p L
[Pa]
ACBLA 2436ACBLE 2460
Air volume flow V· L
20 30 40 60 80 100 200m3/h
1000
500
100
200
503020
10
5
ACBLA/E 30 dm
35 dB[A]40 dB[A]
30 dB[A]
25 dB[A]
Leve
l 7
Leve
l 8
Leve
l 9
Leve
l 12
17.4
Air p
ress
ure
drop
∆p L
[Pa]
ACBLA 3036ACBLE 3060
Air volume flow V· L
Note!*) The sound pressure level [dB(A)] refers to an effective room area of 10 m² Sabine and a reverbation period of 0,5 seconds.Other power levels on request.
Formula 3 Calculating the total cooling capacity Q̇Ktot (1 unit)Q· K(tot)[kW] = q ˙K(specif)[W/m] · L(finned)[m]
Formula 4 Estimating roughly the water volume flow ṁw
q̇ (spezif) [kW/m] · L(finned)[m]tW2 - tW1 [K]
ṁW[kg/h] = 860 ·
Formula 1 Calculating the average temperature difference ∆m
tW1 [°C] + tW2 [°C]2
∆m[K] = tR -
Formula 5 Calculating the total water-sided pressure drop (1 unit)∆pW(tot)[kPa] = ∆qW(specif)[W/m] · L(finned)[m]
Formulas for calculation
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18.1
Chilled Beam ACBLO (active)Specification | Capacity Charts
Capacity Charts 2-sided air discharge
1200
1100
1000
900
800
700
600
500
400
300
200
5 6 7 8 9 10 11 12
50 m3/(h·
m)
36 m3/(h·m
)
PL. / 965 m
3/(h·m)
•
18.5 Temperature difference ∆m [K]
Cool
ing
capa
city
[W/m
]
Power level 9
5 6 7 8 9 10 11 12
1400
1300
1200
1100
1000
900
800
700
600
500
400
PL. / 12
86 m3/(h·
m)
65 m3/(h·m
)
108 m3
/(h·m)
55066 m
3/(h·m)
18.6 Temperature difference ∆m [K]
Cool
ing
capa
city
[W/m
]
Power level 12
235
602
202
525
296,5
20
ø125
39
39
60 x 9
L(ges.)
L(berippt)
405
ø15
Dimensions
18.2
Technical data | Weights
TypeL(tot)
[mm]
L(finned)
[mm]
Weight
[kg]
min. distance to the ceiling
[mm]
ACBLO 1260 1193 1000 40 100
ACBLO 1860 1793 1600 60 100
ACBLO 2460 2393 2200 80 100
ACBLO 3060 2993 2800 100 100
18.3
1200
1100
1000
900
800
700
600
500
400
300
2005 6 7 8 9 10 11 12
PL. / 6
40 m3/(h·
m)
36 m3/(h·m
)
29 m3/(h·m
)
22 m3/(h·m)
18.4 Temperature difference ∆m [K]Co
olin
g ca
paci
ty [W
/m]
Power level 7
Sb
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19
Design features for model ACBLO
Model ACBLO chilled beams are active air conditioning units. As they require a supply air flow to operate they automatically meet the requirements regarding the ventilation of a room. Installation is flush to a panelled ceiling. The structural design of the units will be explained in the following.
Air coolerThe air cooler is made of copper pipes covered with aluminium fins. To ensure a continuous heat transfer the fins and the pipes are bonded together.
The water quality of the coolant must ·meet the requirements of the German Standard VDI 2035Maximum operating pressure 6 bar* ·Maximum operating temperature 90°C* ·
*Other installation options on request.
ConnectionsThe chilled beams can be ordered with »H« (horizontal) or »V« (vertical) connection pipes only. The connection pipes average diameter is
ø 15 mm with one pipe division ·ø 22 mm with two or more pipe divisions. ·
The supply air connection (ø 100 mm) is lo-cated at the end of the unit. (see page 18).
Casing The casing is made of coated steel plate (the colour is white, similar to RAL 9010). The recirculating air inlet cover can be removed for maintenance purposes. For dimensions see Fig. 18.2. Two mounting rails run along the top of the whole unit. The mounting brackets which are included in the delivery are at-tached to these rails.
OptionsAvailable unit lengths: 12–36 dm in ·6 dm increments1- and 2-sided air discharge ·
Installation notesThe installation requirements for chilled beams illustrated in Fig. 18.3 in respect of the distances to the ceiling must be complied with as the stated cooling rates will not be achieved otherwise.
ApplicationsOffices, open plan offices, administrative buildings, restaurants, showrooms, sound and TV studios, supermarkets, department stores, etc.
Chilled Beam ACBLO (active)Design Features | Installation Example
19.1 Installation example and function
UZ
Installation in a panelled ceiling
B B
Sb Sb
Amin.≥ 0,7 · aL Amin.≥ 1,4 · aL *) Amin.≥ 0,7 · aL
D min
[AL] Centrally conditioned outside air[U] Warm recirculating air entering the ch. b.[Z] Cooled recirculating and supply air leaving the ch. b.[SL] Recirculating air induced by the supply air flow
U
AL
Model ACBLO chilled beams are always installed flush in panelled ceilings.If a number of chilled beams are needed to meet the cooling requirements of the room the minimum installation distances given in Fig. 19.2 must be observed.The edge gaps »Sb« must be at least 70 % of the free area of the chilled beam’s face view.
Note!Other installation options available on request.
Z
Z
»Amin« Minimum distances between chilled beams arranged in parallel
[B] Width of the chilled beam, see Fig. 18.2[Amin] Minimum distance between two chilled beams or between a chilled beam and a wall, in line with the air volume flow, see Fig. 5.4[Dmin] Minimum distance between the top edge of the chilled beam and the prefabricated or the room’s ceiling, see Fig. 18.3
2-sided air discharge
*)aL = Reference spacing (see page 5)
19.2
SL
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20.1
Chilled Beam AECAK (passive)Specification | Capacity Charts
375453
255
40
9 x60
39
142
525603
405
9x60
142
39
Dimensions
20.2
Technical data | Weights
Mounting bracketsUp to 2,4 m 2 offfrom 2,5 m 3 off
350
300
250
200
150
100
50
00 1 2 3 4 5 6 7 8 9 10 11 12
AECAK 550
500
450
400
Unit w
idth 45
Un
it widt
h 60
20.4 Temperature difference ∆m [K]
Spec
if. c
oolin
g ca
paci
ty [W
/m]
Specific cooling capacity [q̇K(spez)]
L(tot)
[mm]
L(finned)
[mm]
Chilled beam
witdh B[mm]
Distance to the ceiling
Dmin[mm]
Watercontent
[l]
Weight
[≈kg]
1000 800 450 80 0,80 8
1500 1300 450 80 1,20 12
2000 1800 450 80 1,60 16
2500 2300 450 80 2,00 20
3000 2800 450 80 2,40 24
3500 3300 450 80 2,80 28
4000 3800 450 80 3,20 32
1000 800 600 120 1,10 10
1500 1300 600 120 1,65 15
2000 1800 600 120 2,20 20
2500 2300 600 120 2,75 25
3000 2800 600 120 3,30 30
3500 3300 600 120 3,85 35
4000 3800 600 120 4,40 40
20.3
Connections1 pipe divisionø 15; 150 mm long
20.5
5
4
3
2
1
0
8
7
6
0 200 400 600 800 900100 300 500 700kg/h
0 0,05 0,10 0,15 0,20 0,25kg/s
AECBK 45AECBK 60
Water volume flow ṁw [kg/h]
Spec
if. p
ress
ure
drop
[kPa
/m]
Specific pressure drop [∆pw]
∆m[K] = Average temperature difference between two different mediatR [°C] = Room temperaturetW1 [°C] = Water inlet temperature tW2 [°C] = Water outlet temperaturem· W[kg/h] = Water volume flowQ·
K(tot) = Total cooling capacity of a hilled beam q· K(spezif)[W/m] = Cooling power per metre of finned chilled beam length (L (finned))(L(finned)) [m] = L(tot)[m] - 0,2 m∆pW(tot)[kPa] = Total pressure drop of a chilled beam∆pW(spezif)[kPa/m] = Specific pressure drop of 1 m finned chilled beam length (L (finned)) see Fig. 20.5
Formulas for calculation
Formula 3 Calculating the total cooling capacity Q̇Ktot (1 unit)Q· K(tot)[kW] = q ˙K(specif)[W/m] · L(finned)[m]
Formula 4 Estimating roughly the water volume flow ṁw
q̇ (spezif) [kW/m] · L(finned)[m]tW2 - tW1 [K]
ṁW[kg/h] = 860 ·
Formula 1 Calculating the average temperature difference ∆m
tW1 [°C] + tW2 [°C]2∆m
[K] = tR -
Formula 5 Calculating the total water-sided pressure drop (1 unit)∆pW(tot)[kPa] = ∆qW(specif)[W/m] · L(finned)[m]
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a
Design features for model AECAK
Model AECAK chilled beams are designed to be seen. They can be used in areas with high cooling loads such as department stores with high thermal loads, etc. The units can be tailor-made to complement the architectural design of the room. The structural design of the units will be explained in the following.
Air coolerThe air cooler is made of copper pipes covered with aluminium fins. To ensure a continuous heat transfer the fins and the pipes are bonded together.
The water quality of the coolant must ·meet the requirements of the German Standard VDI 2035Finned length of the chilled beam L · finned, see Fig. 20.3Maximum operating pressure 6 bar ·Maximum operating temperature 90°C ·
ConnectionsThe chilled beams can be ordered with »H« (horizontal) or »V« (vertical) connection pipes only. The connection pipes average diameter is
ø 15 mm with one pipe division ·
Casing The casing is made of coated steel plate (the colour is white, similar to RAL 9010). For dimensions see Fig. 20.2; unit length Lges and finned length of chilled beam Lfinned see Fig. 20.3. Mounting rails run along the top of the whole unit. The mounting brackets which are included in the delivery are attached to these rails.White special fins protect the interior of the chilled beam.
Optionsintegrated lighting fixtures ·integrated smoke detectors ·
Installation notesThe installation requirements for chilled beams illustrated in Fig. 20.3 in respect of the distances to the ceiling must be complied with as the stated cooling rates will not be achieved otherwise.
ApplicationsOffices, open plan offices, administrative buildings, restaurants, showrooms, sound and TV studios, supermarkets, department stores, etc.
Chilled Beam AECAK (passive)Design Features | Installation Example
21.1 Installation example and function
U
Z
Installation underneath a ceiling in plain view
B BA ≥ 0,5 · B A ≥ 1,4 · B A ≥ 0,5 · B
Dmin
U
Model AECAK chilled beams are installed in plain view underneath a ceiling. An additional air passage grill is not required.If a number of chilled beams are needed to meet the cooling requirements of the room the minimum installation distances given in Fig. 21.2 must be observed.
Z
Z
»Amin« Minimum distances between chilled beams arranged in parallel
[B] Width of the chilled beam, see Fig. 20.2[Amin] Minimum distance between a chilled beam and a wall[Dmin] Minimum distance between the top edge of the chilled beam and a prefabricated or room’s ceiling, see Fig. 20.3
21.2
U
[U] Warm recirculating air entering the ch. b.[Z] Cooled recirculating air floating down
Note!Please refer to the Order Key on page 4.
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22.1
Chilled Beam AECBK (passive)Specification | Capacity Charts
350
300
250
200
150
100
50
00 1 2 3 4 5 6 7 8 9 10 11 12
AECBK550
500
450
400
Unit wi
dth 45
Unit w
idth 60
22.4 Temperature difference ∆m [K]
Spec
if. c
oolin
g ca
paci
ty [W
/m]
Specific cooling capacity [q̇K(spez)]
Technical data | Weights
22.3
375453
255
40
9 x 60
39
156
525605
405
9 x 60
156
Dimensions
22.2
22.5
5
4
3
2
1
0
8
7
6
0 200 400 600 800 900100 300 500 700kg/h
0 0,05 0,10 0,15 0,20 0,25kg/s
AECBK 45AECBK 60
Water volume flow ṁw [kg/h]
Spec
if. p
ress
ure
drop
[kPa
/m]
Specific pressure drop [∆pw]
Formulas for calculation
Note! Design example for passive chilled beams page 28.
Mounting bracketsUp to 2,4 m 2 offfrom 2,5 m 3 off
Connections1 pipe divisionø 15; 150 mm long
∆m[K] = Average temperature difference between two different mediatR [°C] = Room temperaturetW1 [°C] = Water inlet temperature tW2 [°C] = Water outlet temperaturem· W[kg/h] = Water volume flowQ·
K(tot) = Total cooling capacity of a hilled beam q· K(spezif)[W/m] = Cooling power per metre of finned chilled beam length (L (finned))(L(finned)) [m] = L(tot)[m] - 0,2 m∆pW(tot)[kPa] = Total pressure drop of a chilled beam∆pW(spezif)[kPa/m] = Specific pressure drop of 1 m finned chilled beam length (L (finned)) see Fig. 20.5
Formula 3 Calculating the total cooling capacity Q̇Ktot (1 unit)Q· K(tot)[kW] = q ˙K(specif)[W/m] · L(finned)[m]
Formula 4 Estimating roughly the water volume flow ṁw
q̇ (spezif) [kW/m] · L(finned)[m]tW2 - tW1 [K]
ṁW[kg/h] = 860 ·
Formula 1 Calculating the average temperature difference ∆m
tW1 [°C] + tW2 [°C]2∆m
[K] = tR -
Formula 5 Calculating the total water-sided pressure drop (1 unit)∆pW(tot)[kPa] = ∆qW(specif)[W/m] · L(finned)[m]
L(tot)
[mm]
L(finned)
[mm]
Chilled beam
width B[mm]
Distance to the ceiling
Dmin[mm]
Watercontent
[l]
Weight
[≈kg]
1000 800 450 80 0,80 8
1500 1300 450 80 1,20 12
2000 1800 450 80 1,60 16
2500 2300 450 80 2,00 20
3000 2800 450 80 2,40 24
3500 3300 450 80 2,80 28
4000 3800 450 80 3,20 32
1000 800 600 120 1,10 10
1500 1300 600 120 1,65 15
2000 1800 600 120 2,20 20
2500 2300 600 120 2,75 25
3000 2800 600 120 3,30 30
3500 3300 600 120 3,85 35
4000 3800 600 120 4,40 40
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Design features for model AECBK
Model AECBK chilled beams are designed to be seen. They can be used in areas with high cooling loads such as department stores with high thermal loads, etc. The units can be tailor-made to complement the architectural design of the room. The structural design of the units will be explained in the following.
Air coolerThe air cooler is made of copper pipes covered with aluminium fins. To ensure a continuous heat transfer the fins and the pipes are bonded together.
The water quality of the coolant must ·meet the requirements of the German Standard VDI 2035Finned length of the chilled beam L · finned, see Fig. 20.3Maximum operating pressure 6 bar ·Maximum operating temperature 90°C ·
ConnectionsThe chilled beams can be ordered with »H« (horizontal) or »V« (vertical) connection pipes only. The connection pipes average diameter is
ø 15 mm with one pipe division ·
Casing The casing is made of coated steel plate (the colour is white, similar to RAL 9010). For dimensions see Fig. 22.2; unit length Lges and finned length of chilled beam Lfinned see Fig. 22.3. Mounting rails run along the top of the whole unit. The mounting brackets which are included in the delivery are attached to these rails.White special fins protect the interior of the chilled beam.
Optionsintegrated lighting fixtures ·integrated smoke detectors ·
Installation notesThe installation requirements for chilled beams illustrated in Fig. 22.3 in respect of the distances to the ceiling must be complied with as the stated cooling rates will not be achieved otherwise.
ApplicationsOffices, open plan offices, administrative buildings, restaurants, showrooms, sound and TV studios, supermarkets, department stores, etc.
Chilled Beam AECBK (passive)Design Features | Installation Example
23.1 Installation example and function
UZ
Installation underneath a ceiling in plain view
B BA ≥ 0,5 · B A ≥ 1,4 · B A ≥ 0,5 · B
Dmin
U
Model AECBK chilled beams are installed in plain view underneath a ceiling. An additional air passage grill is not required.If a number of chilled beams are needed to meet the cooling requirements of the room the minimum installation distances given in Fig. 23.2 must be observed.
Z
Z
»Amin« Minimum distances between chilled beams arranged in parallel
[B] Width of the chilled beam, see Fig. 22.2[Amin] Minimum distance between a chilled beam and a wall[Dmin] Minimum distance between the top edge of the chilled beam and a prefabricated or room’s ceiling, see Fig. 22.3
23.2
U
[U] Warm recirculating air entering the ch. b.[Z] Cooled recirculating air floating down
Note!Please refer to the Order Key on page 4.
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24.1
Chilled Beam AECBU (passive)Specification | Capacity Charts
375455
255
40
9x60
39
122
525605
405
9x60
122
Dimensions
24.2
350
300
250
200
150
100
50
0 1 2 3 4 5 6 7 8 9 10 11 12
550
500
450
400
Unit w
idth 45
Unit w
idth 6
0 AECBU
•
270
180
•
24.4 Temperature difference ∆m [K]
Spec
if. c
oolin
g ca
paci
ty [W
/m]
Specific cooling capacity [q̇K(spez)]
24.5
5
4
3
2
1
0
8
7
6
0 200 400 600 800 900100 300 500 700kg/h
0 0,05 0,10 0,15 0,20 0,25kg/s
AECBU
Uni
t wid
th 6
0
Unit
widt
h 45
•1,9
267
Water volume flow ṁw [kg/h]
Spec
if. p
ress
ure
drop
[kPa
/m]
Specific pressure drop [∆pw]
Technical data | Weights
24.3
Formulas for calculation
Note! Design example for passive chilled beams page 28.
Mounting bracketsUp to 2,4 m 2 offfrom 2,5 m 3 off
Connections1 pipe divisionø 15; 150 mm long
∆m[K] = Average temperature difference between two different mediatR [°C] = Room temperaturetW1 [°C] = Water inlet temperature tW2 [°C] = Water outlet temperaturem· W[kg/h] = Water volume flowQ·
K(tot) = Total cooling capacity of a hilled beam q· K(spezif)[W/m] = Cooling power per metre of finned chilled beam length (L (finned))(L(finned)) [m] = L(tot)[m] - 0,2 m∆pW(tot)[kPa] = Total pressure drop of a chilled beam∆pW(spezif)[kPa/m] = Specific pressure drop of 1 m finned chilled beam length (L (finned)) see Fig. 20.5
Formula 3 Calculating the total cooling capacity Q̇Ktot (1 unit)Q· K(tot)[kW] = q ˙K(specif)[W/m] · L(finned)[m]
Formula 4 Estimating roughly the water volume flow ṁw
q̇ (spezif) [kW/m] · L(finned)[m]tW2 - tW1 [K]
ṁW[kg/h] = 860 ·
Formula 1 Calculating the average temperature difference ∆m
tW1 [°C] + tW2 [°C]2∆m
[K] = tR -
Formula 5 Calculating the total water-sided pressure drop (1 unit)∆pW(tot)[kPa] = ∆qW(specif)[W/m] · L(finned)[m]
L(tot)
[mm]
L(finned)
[mm]
Chilled beam
width B[mm]
Distance to the ceiling
Dmin[mm]
Watercontent
[l]
Weight
[≈kg]
1000 800 450 80 0,80 8
1500 1300 450 80 1,20 12
2000 1800 450 80 1,60 16
2500 2300 450 80 2,00 20
3000 2800 450 80 2,40 24
3500 3300 450 80 2,80 28
4000 3800 450 80 3,20 32
1000 800 600 120 1,10 10
1500 1300 600 120 1,65 15
2000 1800 600 120 2,20 20
2500 2300 600 120 2,75 25
3000 2800 600 120 3,30 30
3500 3300 600 120 3,85 35
4000 3800 600 120 4,40 40
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Sb
Design features for model AECBU
Model AECBU chilled beams are prefer-ably used in panelled ceilings or specially designed panelling systems. The units can be tailor-made to complement the architectural design of the room. An air passage grill [2] is required on the side that is visible from the room for optical reasons. The structural design of the units will be explained in the following.
Air coolerThe air cooler is made of copper pipes covered with aluminium fins. To ensure a continuous heat transfer the fins and the pipes are bonded together.
The water quality of the coolant must ·meet the requirements of the German Standard VDI 2035Finned length of the chilled beam L · finned, see Fig. 20.3Maximum operating pressure 6 bar ·Maximum operating temperature 90°C ·
ConnectionsThe chilled beams can be ordered with »H« (horizontal) or »V« (vertical) connection pipes only. The connection pipes average diameter is
ø 15 mm with one pipe division ·
Casing The casing is made of coated steel plate. For dimensions see Fig. 24.2.Mounting rails run along the top of the whole unit. The mounting brackets which are included in the delivery are attached to these rails.
Installation notesThe installation requirements for chilled beams illustrated in Fig. 24.3 in respect of the distances to the ceiling must be complied with as the stated cooling rates will not be achieved otherwise.
ApplicationsOffices, open plan offices, administrative buildings, restaurants, showrooms, sound and TV studios, supermarkets, department stores, etc.
Chilled Beam AECBU (passive)Design Features | Installation Example
25.1 Installation example and function
Z
Installation in panelled ceiling | Air intake through gaps along the edges
A ≥ 1,4 · BB B
Sb Sb
A ≥ 0,5 · B A ≥ 0,5 · B
Dmin
U
Model AECBU chilled beams are installed in a panelled ceiling. An air passage grill [2] is required to protect the interior of the unit from view. The free area of a grill must be 70 % of the free face area of the chilled beam. If the panelled ceiling is installed flush with the walls the air intake will be through the air intake grills [3], see Fig. 25.2. If a number of chilled beams are needed to meet the cooling requirements of the room the minimum installation distances given in Fig. 25.3 must be observed.Other installation options on request.
Z
Z
»Amin« Minimum distances between chilled beams arranged in parallel
[B] Width of the chilled beam, see Fig. 24.2[Amin] Minimum distance between two chilled beams or between a chilled beam and a wall[Dmin] Minimum distance between the top edge of the chilled beam and a prefabricated or room’s ceiling, see Fig. 24.3
25.3
U
[1] Panelled ceiling[2] Air passage grill[U] Warm recirculating air entering the ch. b.[Z] Cooled recirculating air leaving the ch. b.
Note!Please refer to the Order Key on page 4.
[2][1]
25.2 Installation example and function
Installation in panelled ceiling | Air intake through 2 grills at either side of the unit
U
Z
U
[1] Panelled ceiling[2] Air passage grill[3] Air intake grill[U] Warm recirculating air entering the ch. b.[Z] Cooled recirculating air leaving the ch. b.
[2] [1][3]
Z
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26.1
Chilled Beam AECEU (passive)Specification | Capacity Charts
39455
255
9x60
39
187
605
405
9x60
187
Dimensions
26.2
350
300
250
200
150
100
50
0 1 2 3 4 5 6 7 8 9 10 11 12
550
500
450
400 Un
it widt
h 45
700
650
600
AECEU
Unit
widt
h 60
26.4 Temperature difference ∆m [K]Sp
ecif.
coo
ling
capa
city
[W/m
]
Specific cooling capacity [q̇K(spez)]
26.5
5
4
3
2
1
0
8
7
6
0 200 400 600 800 900100 300 500 700kg/h
0 0,05 0,10 0,15 0,20 0,25kg/s
AECEU
10
9
Uni
t wid
th 4
5
Uni
t wid
th 6
0
Water volume flow ṁw [kg/h]
Spec
if. p
ress
ure
drop
[kPa
/m]
Specif. pressure drop [∆pw]
Technical data | Weights Formulas for calculation
Note! Design example for passive chilled beams page 28.
Mounting bracketsUp to 2,4 m 2 offfrom 2,5 m 3 off
Connections1 pipe divisionø 15; 150 mm long
∆m[K] = Average temperature difference between two different mediatR [°C] = Room temperaturetW1 [°C] = Water inlet temperature tW2 [°C] = Water outlet temperaturem· W[kg/h] = Water volume flowQ·
K(tot) = Total cooling capacity of a hilled beam q· K(spezif)[W/m] = Cooling power per metre of finned chilled beam length (L (finned))(L(finned)) [m] = L(tot)[m] - 0,2 m∆pW(tot)[kPa] = Total pressure drop of a chilled beam∆pW(spezif)[kPa/m] = Specific pressure drop of 1 m finned chilled beam length (L (finned)) see Fig. 20.5
Formula 3 Calculating the total cooling capacity Q̇Ktot (1 unit)Q· K(tot)[kW] = q ˙K(specif)[W/m] · L(finned)[m]
Formula 4 Estimating roughly the water volume flow ṁw
q̇ (spezif) [kW/m] · L(finned)[m]tW2 - tW1 [K]
ṁW[kg/h] = 860 ·
Formula 1 Calculating the average temperature difference ∆m
tW1 [°C] + tW2 [°C]2∆m
[K] = tR -
Formula 5 Calculating the total water-sided pressure drop (1 unit)∆pW(tot)[kPa] = ∆qW(specif)[W/m] · L(finned)[m]
L(tot)
[mm]
L(finned)
[mm]
Chilled beam
width B[mm]
Distance to the ceiling
Dmin[mm]
Watercontent
[l]
Weight
[≈kg]
1000 800 450 80 0,80 8
1500 1300 450 80 1,20 12
2000 1800 450 80 1,60 16
2500 2300 450 80 2,00 20
3000 2800 450 80 2,40 24
3500 3300 450 80 2,80 28
4000 3800 450 80 3,20 32
1000 800 600 120 1,10 10
1500 1300 600 120 1,65 15
2000 1800 600 120 2,20 20
2500 2300 600 120 2,75 25
3000 2800 600 120 3,30 30
3500 3300 600 120 3,85 35
4000 3800 600 120 4,40 40
26.3
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Design features for model AECEU
Model AECEU chilled beams are high performance units. It’s the unit of choice for locations with very high sensible cool-ing loads such as sound and TV studios, department stores with high thermal loads due to the lighting, computer rooms, etc. Installation is in panelled ceiling, behind decorative panels to protect them from view or in plain view if being able to see the technology is not a problem. Due to the high cooling power it is not recom-mended for people to occupy an area directly below the chilled beam for long periods (air flow rate > 0,25 m/s). TTC can supply suitable solutions for such an ap-plication.
Air coolerThe air cooler is made of copper pipes covered with aluminium fins. To ensure a continuous heat transfer the fins and the pipes are bonded together.
The water quality of the coolant must ·meet the requirements of the German Standard VDI 2035Maximum operating pressure 6 bar ·Maximum operating temperature 90°C ·
ConnectionsThe chilled beams can be ordered with »H« (horizontal) or »V« (vertical) connection pipes only. The connection pipes average diameter is
ø 15 mm with one pipe division ·
Casing The casing is made of coated steel plate. For dimensions see Fig. 26.2; unit length Lges and finned length of chilled beam Lfinned see Fig. 26.3. Mounting rails run along the top of the whole unit. The mounting brackets which are included in the delivery are attached to these rails.
Installation notesThe installation requirements for chilled beams illustrated in Fig. 26.3 in respect of the distances to the ceiling must be complied with as the stated cooling rates will not be achieved otherwise.
ApplicationsOffices, open plan offices, administrative buildings, restaurants, showrooms, sound and TV studios, supermarkets, department stores, etc.
Chilled Beam AECEU (passive)Design Features | Installation Example
27.1 Installation example and function
Installation in panelled ceiling | Air intake through 1 grill
B B
Sb Sb
A ≥ 0,5 · B A ≥ 1,4 · B A ≥ 0,5 · B
Dmin
U
Model AECEU chilled beams are installed preferably in a panelled ceiling [1]. An air pas-sage grill [2] is required to protect the interior of the unit from view. The free area of the edge gaps »Sb« must be 70 % of the free face area of the chilled beam. If the panelled ceiling is installed flush with the walls the air intake will be through the air gaps [4], see Fig. 27.2. If a number of chilled beams are needed to meet the cooling requirements of the room the minimum installation distances given in Fig. 27.3 must be observed.
Z
Z
»Amin« Mindestabstände bei parallel angeordneten Chilled Beamen
[B] Width of the chilled beam, see Fig. 27.2[Amin] Minimum distance between two chilled beams or between a chilled beam and a wall[Dmin] Minimum distance between the top edge of the chilled beam and a prefabricated or room’s ceiling, see Fig. 27.3
27.3
U
Note!Please refer to the Order Key on page 4.
27.2 Installation example and function
Installation in panelled ceiling | Air intake through air gaps
U
Z
U
[2] [1][4]
[2] [1][3]
U
Z
[1] Panelled ceiling[2] Air passage grill[U] Warm recirculating air entering the ch. b.[Z] Cooled recirculating air leaving the ch. b.
[1] Panelled ceiling[2] Air passage grill[4] Air gaps[U] Warm recirculating air entering the ch. b.[Z] Cooled recirculating air leaving the ch. b.
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The TaskAn office with a sensible cooling load of Q· K(sen) = 1.200 W is to be cooled using two pas-sive chilled beams of the type AECBU. In addition, preconditioned primary air will be fed into the room. The chilled beams are to be installed in a panelled ceiling at a height of 2,7 m.The required supply air flow will be supplied to the room through a ventilation system.The room volume is approx. 80 m³.
Cold water temperatures: t · W1 = 17°C and tW2 = 19°C Room temperature: t · R = 26°C Supply air temperature: t · L(ZU) = 18°CMax. possible installation length L · (tot) = 5,50 m The supply air flow V · ·L(ZU) shall be 240 m³/h, i.e. the air in the room is to be changed 3 times Cooling capacity Q · · K(sen) = 600 W per chilled beam
The Solution (explained step by step)1. Use Formula 1 to calculate the average temperature difference ∆m
2. Fig. 24.4 gives the following specific cooling capacity qK(specif.) for unit width of 45 and 60 at ∆m = 8 K:
(Unit width 45) q · · K(specif) = 180 W/m (Unit width 60) q · · K(specif) = 270 W/m
3. Calculate the required finned length of the chilled beamsa) (Unit width 45) L · (finned) = Q
·K(sen)[W]: q·K(specif)[W/m] = 600 W : 180 W/m ≈ 3,33 m
b) (Unit width 60) L · (finned) = Q·
K(sen)[W]: q·K(specif)[W/m] = 600 W : 270 W/m ≈ 2,22 m Deduction in line with Fig. 24.3:
for a) part no. AECBU3545, unit length L · (tot.) = 35 dm > equivalent to L(finned) = 3,3 dm for b) part no. AECBU2560, unit length L · (tot.) = 25 dm > equivalent to L(finned) = 2,3 dm
4. Select the chilled beam you require from step 3. In respect of the installation length you could use both of the chilled beams. For the subsequent calculation we have chosen solution »b« (part no. AECBU2560 _ _ _ OS) Installed cooling capacity Q· K(sen) = 270 W/m · 2,3 m = 621 W (required 600 W)
Water-sided pressure drop5. Rough calculation of the water volume flow using formula 4
6. Calculate the total water-sided pressure drop using formula 5Fig. 24.5 · shows a specific pressure drop of ∆pW(specif) = 1,9 kPa/m for mW = 267 kg/h The selected chilled beam AECBU 2560 has a finned length of L · (finned) = 33 dm = 3,3 m
∆pW(tot)[kPa] = ∆pW(spezif)[kPa/m] · L(finned)[m] = 1,9 kPa/m · 2,3 m = 4,37 kPa
Air-sided cooling capacity7. The additional cooling capacity provided through the required supply air supply at 240 m³/h is calculated as follows:
Other calculation criteria >
Calculate ∆m >
Calculate q· K(spezif.) >
Required finned length L(finned) >
Required finned length L(finned) >
Unit width B 45 cm >Unit width B 60 cm >
Select a chilled beam >
Water volume flow m· W >
Calculate ∆p·W(specif) >
Total water-sided pressure drop >
Cooling power of the primary air >
Please note > Note! Corrective factors must be applied to the calculated cooling power if TTC grills are used for air inlet and air discharge (please refer to the TTC Modultherm Planning Documenta-tion)
Design ExamplePassive Chilled Beam | Example model AECBU
q̇ (spezif) [kW/m] · L(finned)[m]tW2 - tW1 [K]
ṁW[kg/h] = 860 ·
(tW1 + tW2)°C2
∆m[K] = tR - = 26 -17°C + 19°C
2= 8 K
} Note! For people to feel comfortable a specific cooling power of 250 W/m should not be exceeded in rooms used as offices.
0,27 kW/m · 2,3 m2 K= 860 · = 267 kg/h
240 (m³/h) · 1,2 (kg/m³) · 1 (kJ/kg·K) · 8 (K)3600Q
·K(air)[kW] = = 0,64 kW
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45
40
35
30
25
20
15
10
5
0
- 5
-10
-15
Quant
ity of
moistu
re x in
g/kg o
f dry ai
r
E
nthalp
y in kJ/
kg
relati
ve hum
idity �
= 0,8
1,15 density in kg/m3
Mollier h,x-DiagrammBarometer reading 1013 mb
1,35
1,30
1,25
1,20
0,1 0,2
0,3
0,4
0,5
0,6
0,7
0,9
1
10
11
12
13
14
1516
17
65
60
55
50
45
40
35
30
25
20
15
10
5
0
-5
-10
2
3
4
5
6
7
8
9
4200
4000
3500
3000
2500
2000
1500
1000
5000-500
dh dx
in k
J/kg
t L [°
C]
18
Comfort zone
Mollier h,x-Diagramm
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Products in Use | Examples
Dexia Bank, Luxemburg Architect Claude VasconiFor the new administrative building of Dexia Bank in Luxemburg, TTC developed an active chilled beam (ACBLE) for heating and/or cooling as well as the corresponding curved ceiling panels (Fig. 30.1–3).
The primary air is supplied via nozzles, using induction to suck in secondary air through the air inlet grating and the heat exchanger, located in the unit. The escap-ing mixed air attaches itself to the ceiling, due to the Coanda effect, then disperses into the room and thus creates air circula-tion in the room.
Altstadtpalais MunichIn the Altstadtpalais in Munich, architects Auer + Weber/Munich applied ecologi-cal axioms in conjunction with Feng shui rules to install 434 active chilled beams with primary air connection in the ceil-ing, allowing a high level of flexibility with regard to how the room is used and furnished (Fig. 30.4–5).
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Products in Use | Examples
In Combination with Multi-function Covers and LEDs TTC covers are an ideal combinations of design and function. Available in a multi-tude of shapes ans materials they can be integrated into any type of architectural design. (Fig. 31.1–4).
Adding coloured direct or indirect illumina-tion can create different moods and thus increase peoples sense of well-being.
Being to set how much air will be dis-charged into the room means that a room’s requirements can be met exactly. All cov-ers can of course also be used to remove air from the room. Different functions such as heating/cooling and ventilation can be concentrated in a small space which reduces investment cost.
TTC ceiling covers are particulary suit-able for retrofitting in offices, depart-ment stores and showrooms. Their design ensures trouble-free installation in most commonly used standard panelled ceilings.Design: www.two-design.com
Wall/Ceiling InstallationActive chilled beams, model ACBLH, can be installed on the wall underneath the ceil-ing (Fig. 31.5–6).The primary air is injected via a nozzle system behind the heat exchanger where it uses induction to create a vacuum which sucks the warm room air into the heat exchanger. The room air is then mixed with the primary air in the mixing chamber and blown out again underneath the ceiling. Due to the Coanda effect the air stream attaches itself to the ceiling and thus achieves a high trajectory length and pen-etration depth. When in cooling mode, all condensate that may accumulate will be collected in a condensate tray from where it can be drained.
Applications:Offices and administrative buildingsShowroomsCafés, Restaurants, Pubs, etc.
31.5 Model ACBLH installed on wall/ceiling 31.6
31.2/3 Ceiling covers with integrated illumination 31.4 Ceiling covers, Design: two-design.com
31.1 Multifunctional ceiling covers with integrated illumination
TTC Timmler Technology
Developing innovative solutionsfor new buildings and redevelopment projectsin close co-operation with architects and plannersAssisting architects and planners to develop customized solutions during the planning phase is just one of the strengths of TTC Timmler Technology.TTC supplies intelligent buildings technology for contemporary residential and work environ-ments: LED lights, innovative air conditioning systems, design-oriented façade components and gratings for both interior and exterior applications. Our know-how and many years experience let you combine modern design, energy efficiency and economic viability. Whatever your technical requirements, we design customized solutions consisting of standard components or tailor-made components, produced to your specifications.
Kind to the environment and economically viablePeople and the environment are at the heart of TTC’s philosophy. We develop natural air conditioning systems that are both energy and cost efficient.
Multi-functionalityUse our know-how to enhance your designMulti-functionality is a particularly strong point of TTC buildings technology. To name just a few examples:
LED Lightdesign – • As with TTC gratings you can also use TTC Lighttools in our mainte-nance platforms to create a stunning illumination and to put your design into the »lime-light«. The options TTC Lightdesign is offering are as versatile as your ideas: From Façade space lights, Power LEDs, LED light lines and tiles to wall washers – with individual designs and a wide range of materials we can deliver customized solutions for your projects.
TTC Modultherm is the ideal system to noiseless air condition whole buildings cost •efficiently, using the natural force of gravity.
TTC Chilled Beams ensure an air conditioning with high comfort an very low noise in •working areas. In arrangement with the architect chilled beams add themselves into the design of the ceiling.
TTC Floorunits with different functionalities of heating, cooling and ventilation provide the •free view through space high glass façades. These products combine design with func-tionality an energy efficiency.
Homogeneous grating systems allow a seamless transition between the interior and the •exterior design of a building. On the inside TTC Under Floor systems provide solutions for all your heating, cooling and ventilation requirements and on the outside they comple-ment the