Embed Size (px)
DESCRIPTION
How to size booster pump
Citation preview
GAMBANG 3 BOOSTER PUMP HOUSE AND SUCTION TANK
A. Design of Pumping main from Suction Tank to Gambang 3 Res
Proposed Service Res. Cap (Gambang 3 Res.) = 9.0 ML - Based on water demand up to year 2010 = 9.872 Mld (with NRW 30%)
Storage Time = 24 hr
Gambang 3 Reservoir TWL = 82.4 m
BWL = 75.0 m
Gambang Suction tank TWL = 71.0 m
BWL = 66.0 m
Length of Pipeline, L = 2525.0 m
Static Head, h1 =- -
= 82.4 - 66.0 - 1.0
= 15.4 m
(m) (m/km)
12 0.2083 550 0.877 15.4 5.643 2.23 1.0 22.043 60.796
14 0.1786 500 0.909 15.4 6.746 2.67 1.0 23.146 54.718
16 0.1563 500 0.796 15.4 5.269 2.09 1.0 21.669 44.824
16 0.1563 450 0.982 15.4 8.797 3.48 1.0 25.197 52.122 Selected - for Pumping Main
16 0.1563 350 1.624 Selected - for Check Valve
= 78%
= 95%
B. Sizing of Suction Tank
i.Sizing based on Ave. Daily Flow
Proposed Res.Cap (Gambang 3 Res.) = 9.0 ML
Storage Time = 24 hr
Ave. Daily Flow = 0.1042 m3/s
Proposed Storage Time for Suction Tank = 3 hr
Min. Capacity of Suction Tank Req. = 0.1042 x 3 hr x 3600 s
= 1125 m3
Water Depth = 5.0 m
Internal Diameter = 17.84 m
Actual Capacity of Suction tank = 1250 m3
Actual Storage time = 3.33 hr
ii) Check against Pumping Rate
Q pumping = 0.1563 m3/s (to refer table above)
TWL of Gambang 3 Res
BWL of Suct. Tank
Depth to IL of pipe
Proposed Pumping
Duration, (hr)
Pumping Rate, Q
pumping
(m3/s)
Pipe Dia. ND
(mm)
Actual Velocity, v
(m/s)Static Head,
h1 (m)
Frict. Losses (with +5%
minor losses), h2
In-Plant Losses, h3
(m)
Total Pumping Lift, H
(m)
Input Power Required, HP
(kW)
efficincy, n pump
efficincy, n motor
Actual Capacity of Suction tank = 1250 m3
Actual Storage Time Req. = 2.22 hr <3.33 hr - Less than Actual Storage Time (based on Ave. Daily Flow)…OK
C. Proposed Floor Level at Pump House
Length of Suction Main = 50 m
Pipe Diameter = 450 mm
Q pumping = 0.1563 m/s (to refer table above)
Velocity, v = 0.983
C (Hazen William) = 100
Headloss through Suction Main = 0.20 m (with +20% for fittings, etc)
Height of Pump + Plinth = 1.2 m
Gambang Suction tank TWL = 71.0 m
BWL = 66.0 m
Say Pump Start at Level = 68.0 m (+2m above BWL)
- -Proposed Floor Level at Pump House =
= 68.0 - 0.20 - 1.2
= 66.6 m
Pump Start Level
Headloss through Suction
Main
Height of Pump + Plinth
Total head loss for Loji Air Mempaga
A. Total Pumping Lift Calculation
i. Mempaga reservoir Cap = 800 m3
TWL = 118 m
BWL = 114 m
ii. Loji Air Mempaga CWT Cap = 115 m3
TWL = 85 m
BWL = 84 m
Length of Pipeline, L 2200 m
Static Head, h1 =- -
= 118 m - 84.0 - 1.0
= 33.0 m Total head for loji air mempaga
(m) (m/km)
16 0.0139 250 0.283 33.0 1.520 0.69 1.0 35.520 6.531
for Pumping Main
Selected - for Check Valve
= 78%
= 95%
C (Hazen William) = 100
TWL of J10 Res
BWL of Suct. Tank
Depth to IL of pipe
Proposed Pumping
Duration, (hr)
Pumping Rate, Qpumping
(m3/s)
Pipe Dia. ND
(mm)
Actual Velocity, v
(m/s)
Static Head, h1
(m)
Frict. Losses (with +5% minor losses), h2
In-Plant
Losses, h3 (m)
Total Pumping Lift, H
(m)
Input Power Required, HP
(kW)
efficincy, n pump
efficincy, n motor
B. Sizing of Suction Tank
i.Sizing based on Ave. Daily Flow
Existing Res.Cap (J10 Res.) = 0.0 m3
Storage Time = 24 hr
Ave. Daily Flow = 0.0000 m3/s
Proposed Storage Time for Suction Tank = 4 hr
Min. Capacity of Suction Tank Req. = 0.0000 x 4 hr x 3600 s
= 0 m3
Length of cylinder = 5.8 m
Internal Diameter = 6.00 m
Actual Capacity of Suction tank (cylinder horizontal type) = 164 m3
Actual Storage time = #DIV/0! hr
ii) Check against Pumping Rate
Q pumping = #REF! m3/s (to refer table above) = #REF! m3/hr = #REF! m3/min
Actual Capacity of Suction tank = 164 m3 = #REF! m3/hr
= 36,078 gallon
Actual Storage Time Req. = #REF! hr min 2 hrs storage
iii) Based on 1/3 of serv.reservoir
J10 Serv. Res cap = 0 0
1/3 of serv tres = 0 0
= 0 gallon
Length of cylinder = 11.5 m
Internal Diameter = 5.00 m
Actual Capacity of Suction tank (cylind ervertl type) = 226 m3
JENGKA 10 BOOSTER PUMP HOUSE AND SUCTION TANK
A. Total Pumping Lift Calculation
i. J10 Service Tank Cap = 680 m3
TWL = 113.38 m
BWL = 109.5 m
ii. J10 Suction Tank Cap = 115 m3
TWL = 88.01 m
BWL = 84.36 m
Length of Pipeline, L 2800 m
Static Head, h1 =
TWL of J10 Res-
= 113.38 m - 84.4
= 28.0 m
(m) (m/km)
16 0.0118 200 0.376 28.0 4.240 1.51 1.0
12 0.0157 200 0.501 28.0 7.220 2.58 1.0
12 0.0157 150 0.891
B. Sizing of Suction Tank
i.Sizing based on Ave. Daily Flow
Existing Res.Cap (J10 Res.) = 680.0 m3
Storage Time = 24 hr
Ave. Daily Flow = 0.0079 m3/s
Proposed Storage Time for Suction Tank = 4 hr
Min. Capacity of Suction Tank Req. = 0.0079 x 4 hr x
= 113 m3
Length of cylinder = 5.8 m
Internal Diameter = 6.00 m
Actual Capacity of Suction tank (cylinder horizontal type) = 164 m3
Actual Storage time = 5.79 hr
ii) Check against Pumping Rate
Q pumping = 0.0157 m3/s (to refer table above)
Actual Capacity of Suction tank = 164 m3
= 36,078 gallon
Actual Storage Time Req. = 2.89 hr min 2 hrs storage
BWL of Suct. Tank
Proposed Pumping Duration, (hr)
Pumping Rate, Q
pumping
(m3/s)
Pipe Dia. ND
(mm)
Actual Velocity, v
(m/s)Static Head,
h1 (m)
Frict. Losses (with +5% minor losses), h2
In-Plant Losses, h3
(m)
iii) Based on 1/3 of serv.reservoir
J10 Serv. Res cap = 680 m3
1/3 of serv tres = 227 m3
= 49,861 gallon
Length of cylinder = 11.5 m
Internal Diameter = 5.00 m
Actual Capacity of Suction tank (cylind ervertl type) = 226 m3
-
84.4 - 1.0
33.260 5.198
36.240 7.552 for Pumping Main
Selected - for Check Valve
= 78%
= 95%
C (Hazen William) = 100
3600 s
m3/s (to refer table above) = 56.66667 m3/hr = 0.9444444444 m3/min
= 0.944444 m3/hr
min 2 hrs storage
BWL of Suct. Tank
Depth to IL of pipe
Total Pumping Lift, H
(m)Input Power Required, HP
(kW)
efficincy, n pump
efficincy, n motor
