Intermediate thermodynamics

0.1

1

10

140 160 180 200 220 240 260 280 300 320 340 360 380 400 420 440 460 480 500 520 540 560 580 600

Enthalpy [kJ/kg]

Pr es

su re

[M Pa

]

Produced by E. Hansen and I. Aartun, NTNU 1999. Based on the program Allprops, Center for Applied Thermodynamic Studies, University of Idaho.

T=90

T=80

T=70

T=60

T=50

T=40

T=30

T=20

T=10

T=0

T=-10

T=-20

T=-30

T=-40

T=110

T=120

T=130 T=140

T=150

T=160

T=170 T=180

T=190

T=200

S=0.9

S=1.0

S=1.1

S=1.2

S=1.3

S=1.4

S=1.5

S=1.6

S=1.7

S=1.8

S=1.9

S=2.0

S=2.1

S=2.2

R-134a

2

3

4

5

6 7 8 9

0.2

0.3

0.4

0.5 0.6

0.8 0.9

0.7

R-134a Pressure-Enthalpy Diagram

S=Specific Entropy, kJ/kg*K T=Temperature, ºC