Pressure-Enthalpy Chart, R-134a (1,1,1,2-tetrafluoroethane)
Pressure (Bar)
100
10
1
0.1
100
200
300
400
500
600
700
Enthalpy (kJ/kg)
Critical Point
Subcooled Liquid
Liquid Vapor Mixture
Superheated Vapor
Pressure (MPa)
10
1
0.1
0.01
100
200
300
400
500
600
700
Data Series 1
Environment
Ambient Pressure (bar)
1.01325
Refrigeration Inputs
Suction Line Temperature, $T_{in}$ (°C)
3.6
Discharge Temperature, $T_{out}$ (°C)
66.1
TEV Inlet Temperature, $T_{TEV}$ (°C)
42.7
TEV Outlet Temperature, $T_{ou}$ (°C)
-1.3
Low Gauge Pressure, $P_{low}$ (bar)
1.52
High Gauge Pressure, $P_{high}$ (bar)
11.43
Water Inputs
Hot Tank Water Temperature, $T_{hw}$ (°C)
35.0
Cold Water Tank Temperature, $T_{cw}$ (°C)
16.8
Refrigeration Calculated
Saturated Evaporating Pressure (bar)
2.53
Saturated Condensating Pressure (bar)
12.44
Suction Line Specific Enthalpy, $h_{in}$ (kJ/kg)
402.90
Discharge Specific Enthalpy, $h_{out}$ (kJ/kg)
443.72
TEV Inlet Specific Enthalpy, $h_a$ (kJ/kg)
260.42
Saturated Evaporating Temperature (°C)
-3.97
Saturated Condensing Temperature (°C)
47.72
Superheat (°C)
7.57
Subcooling (°C)
5.02
Suction Line Entropy (kJ/kg.K)
1.75366
Discharge Entropy (kJ/kg.K)
1.77226
