Licensed for single user. © 2009 ASHRAE, Inc.
100
150
200
250
300
350
400
450
500
550
20
20
R-12
(dichlorodifluoromethane)
10
8
6
Reference state:
h = 200.0 kJ/kg, s = 1.00 kJ/(kg K)
for saturated liquid at 0°C
10
8
6
4
4
2
2
1
0.8
0.6
0.4
PRESSURE, MPa
1
0.8
0.6
0.4
0.2
0.2
0.1
0.08
0.06
0.04
0.1
0.08
0.06
0.04
0.02
0.02
0.01
100
0.01
150
200
250
300
350
400
450
500
550
ENTHALPY, kJ/kg
Properties computed with: NIST REFPROP
version 7.0
Based on formulation of Marx et al. (1992)
Fig. 1 Pressure-Enthalpy Diagram for Refrigerant 12