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Heating cycle analysis
Cooling cycle analysis
Heat of extraction (absorption) or heat of rejection =
________ Flow rate (l/s) x ________ Temp. difference (K) x ________ Fluid factor* = ________
(kW)
Superheat
= Suction temperature - suction dew point temperature
= ________ (K)
Subcooling
= Discharge bubble point temperature - liquid line temperature
= ________ (K)
* Use 4.16 for water, 4.03 for anti-freeze
SUCTION
COMPRESSOR
DISCHARGE
COAX
EXPANSION
VALVE
°
C
°
C
AIR
COIL
°
C
kPa
WATER OUT
WATER IN
°
C
kPa
LOOK UP PRESSURE DROP IN TABLE 10
TO DETERMINE FLOW RATE
°
C
LIQUID LINE
kPa
°
C
DEW
POINT
Air
coil
Expansion
valve
Liquid line
Water in
Water out
Heat
exchanger
Look up pressure drop in Table 8
to determine flow rate
Dew point
Suction
Compressor
Discharge
SUCTION
COMPRESSOR
DISCHARGE
COAX
EXPANSION
VALVE
°
C
°
C
AIR
COIL
°
C
kPa
WATER OUT
WATER IN
°
C
kPa
LOOK UP PRESSURE DROP IN TABLE 10
TO DETERMINE FLOW RATE
°
C
LIQUID LINE
kPa
°
C
DEW
POINT
Air
coil
Expansion
valve
Liquid line
Water in
Water out
Heat
exchanger
Look up pressure drop in Table 8
to determine flow rate
Dew point
Suction
Compressor
Discharge