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The Split ACRefrigeration Cycle
3 C LIQUID
EVAPORATOREVAPORATOR
ROOM OUTSIDE
SUNSUN
30 C35 C
3 C LIQUID
EVAPORATOREVAPORATOR
BTUs
SUNSUN
ROOM OUTSIDE
30 C35 C
Evaporator Coil Absorbing the Cooling Load
3 C LIQUID
10 C GAS
EVAPORATOREVAPORATOR
SUNSUN
ROOM OUTSIDE
25 C
35 C30 C
Evaporator Coil Boils the Liquid
3 C LIQUID
10 C GAS
COMPRESSORCOMPRESSOR
SUNSUN
ROOM OUTSIDE
30 C35 C
25 C
3 C LIQUID
10 C GAS
COMPRESSORCOMPRESSOR
SUNSUN
ROOM OUTSIDE
30 C35 C
25 C
10 C GAS
3 C LIQUID
50 C GAS
COMPRESSORCOMPRESSOR
SUNSUN
ROOM OUTSIDE
30 C35 C
25 C
3 C LIQUID
10 C GAS 50 C GAS
CONDENSERCONDENSER
SUNSUN
ROOM OUTSIDE
30 C35 C
25 C
3 C LIQUID
10 C GAS 50 C GAS
CONDENSERCONDENSER
BTUs
SUNSUN
ROOM OUTSIDE
30 C35 C
25 C
Compressor
Dis
char
ge L
ine
3 C LIQUID
10 C GAS 50 C GAS
38 C LIQUID
CONDENSERCONDENSER
SUNSUN
ROOM OUTSIDE
30 C35 C
25 C
35.5 C
38 C LIQUID
50 C GAS
3 C LIQUID
10 C GAS
Capillary TubeCapillary Tube
SUNSUN
ROOM OUTSIDE
30 C35 C
25 C
35.5 C
Capillary Tube Strainer
Refrigerant Flow
Expansion Devise
38 C LIQUID 3 C LIQUID
10 C GAS 50 C GAS
Capillary TubeCapillary Tube
SUNSUN
ROOM OUTSIDE
30 C35 C
25 C
35.5 C
Strainer
Accumulator
EVAPORATORCONDENSER
SUNSUNMINIMINI--SPLIT SYSTEM, SPLIT SYSTEM, panaspanas dingindingin
HOTREFRIGERANT
Capillary Tube
COMPRESSOR
EVAPORATORCONDENSER
SUNSUNMINIMINI--SPLIT SYSTEM, SPLIT SYSTEM, dingindingin -- dingindingin
COLDREFRIGERANT
CapillaryTube
COMPRESSOR
WALL
Remote Control
EVAPORATORUNIT
CONDENSINGUNIT
A B
pres
sure
pres
sure
enthalpyenthalpy
evaporatevaporatoror
Refrigeration CycleVapor-compression refrigeration cycleVapor-compression refrigeration cycle
PSIA
PSIA
Heat content: sensible + latent , btu/lbHeat content: sensible + latent , btu/lb
A
C
compresscompressororp
ress
ure
pres
sure
enthalpyenthalpy
evaporatevaporatoror
B
superheatedsuperheated
Refrigeration Cycle
A
condenscondenserer
pres
sure
pres
sure
enthalpyenthalpy
evaporatevaporatoror
B
C
compresscompressoror
D
desuperheatdesuperheatsubcooledsubcooled
Refrigeration Cycle
expansiexpansionon
devicedevice
A
D condenscondenserer
pres
sure
pres
sure
enthalpyenthalpy
evaporatevaporatoror
B
C
compresscompressororBoil off, flashBoil off, flash
Refrigeration Cycle
0,001
0,01
0,1
1
10
100
1000
100 1000 10000
SuperheatedVapor C
ompr
esso
r
CapillaryTube
Satu
rate
d L
iqui
dA
BDC
E
FG
Enthalpy
Pres
sure
+
+
Condenser
Evaporator
BCDE
HP
LP
F G
A
C
B
D
F
E
G
A
COMPRESSORDISCHARGE
DESUPERHEAT
CONDENSATION
SUBCOOLING
PRESSURE DROP(TEV)
EVAPORATION
SUPERHEAT
SEQUENCE OF EVENTS
ASa
tura
ted
Vap
or
Skeleton Mollier Chart Showing Vapor Compression Refrigeration Cycle
Refrigeration Effect
SubcooledLiquid
Total Heat Rejection
B
SPLIT AC SYSTEM COMPONENTS
Compression Lift
MixtureRegion
2 - Stage Centrifugal Chiller
11
2233
4466
77
Pre
ssur
e,
Pre
ssur
e, p
sia
psia
Enthalpy, Enthalpy, btubtu/lb/lb
evaporatevaporatoror
condenscondenserer
22--stage stage compresscompressoror
expansioexpansion devicesn devices
88
99PPee
PPcc
PP11
55economizeeconomizerr
A
The Split ACRefrigeration Cycle
Thank You
Condenser Unit
Suction Line