Related Resources: thermodynamics

Superheated R-134a Thermodynamic Properties Table

Thermodynamics
Heat Transfer

Superheated R-134a Thermodynamic Properties Tables for Pressures 300 kPa, 400 kPa, 500 kPa, and 600 kPa.

Where:

v = Specific volume
u = Specific internal energy
h = Specific enthalpy
s = Specific entropy

Temp.
(°C)
v
(m3/kg)
u
(kJ/kg)
v
(kJ/kg)
s
(kJ/kg-K)
v
(m3/kg )
u
(kJ/kg)
h
(kJ/kg)
s
(kJ/kg-K)
300 kPa ( - 40.67 °C)
400 kPa ( - 26.54 °C)
Sat.
0.06787
378.33
398.69
1.7259
0.05136
383.02
403.56
1.7223
10
0.07111
385.84
407.17
1.7564
0.05168
383.98
404.65
1.7261
20
0.07441
393.80
416.12
1.7874
0.05436
392.22
413.97
1.7584
30
0.07762
401.81
425.10
1.8175
0.05693
400.45
423.22
1.7895
40
0.08075
409.90
434.12
1.8468
0.05940
408.70
432.46
1.8195
50
0.08382
418.09
443.23
1.8755
0.06181
417.03
441.75
1.8487
60
0.08684
426.39
452.44
1.9035
0.06417
425.44
451.10
1.8772
70
0.08982
434.82
461.76
1.9311
0.06648
433.95
460.55
1.9051
80
0.09277
443.37
471.21
1.9582
0.06877
442.58
470.09
1.9325
90
0.09570
452.07
480.78
1.9850
0.07102
451.34
479.75
1.9595
100
0.09861
460.90
490.48
2.0113
0.07325
460.22
489.52
1.9860
110
0.10150
469.87
500.32
2.0373
0.07547
469.24
499.43
2.0122
120
0.10437
478.99
510.30
2.0631
0.07767
478.40
509.46
2.0381
130
0.10723
488.26
520.43
2.0885
0.07985
487.69
519.63
2.0636
140
0.11008
497.66
530.69
2.1136
0.08202
497.13
529.94
2.0889
150
0.11292
507.22
541.09
2.1385
0.08418
506.71
540.38
2.1139
160
0.11575
516.91
551.64
2.1631
0.08634
516.43
550.97
2.1386
 
Sat.
500 kPa (15.66 °C)
600 kPa (21.52 °C)
0.04126
386.82
407.45
1.7198
0.03442
390.01
410.66
1.7179
20
0.04226
390.52
411.65
1.7342
—
—
—
—
30
0.04446
398.99
421.22
1.7663
0.03609
397.44
419.09
1.7461
40
0.04656
407.44
430.72
1.7971
0.03796
406.11
428.88
1.7779
50
0.04858
415.91
440.20
1.8270
0.03974
414.75
438.59
1.8084
60
0.05055
424.44
449.72
1.8560
0.04145
423.41
448.28
1.8379
70
0.05247
433.06
459.29
1.8843
0.04311
432.13
457.99
1.8666
80
0.05435
441.77
468.94
1.9120
0.04473
440.93
467.76
1.8947
90
0.05620
450.59
478.69
1.9392
0.04632
449.82
477.61
1.9222
100
0.05804
459.53
488.55
1.9660
0.04788
458.82
487.55
1.9492
110
0.05985
468.60
498.52
1.9924
0.04943
467.94
497.59
1.9758
120
0.06164
477.79
508.61
2.0184
0.05095
477.18
507.75
2.0019
130
0.06342
487.13
518.83
2.0440
0.05246
486.55
518.03
2.0277
140
0.06518
496.59
529.19
2.0694
0.05396
496.05
528.43
2.0532
150
0.06694
506.20
539.67
2.0945
0.05544
505.69
538.95
2.0784
160
0.06869
515.95
550.29
2.1193
0.05692
515.46
549.61
2.1033
170
0.07043
525.83
561.04
2.1438
0.05839
525.36
560.40
2.1279

Temperature Conversions

Pressure Conversions

  • kPa to psi, 0.145038 lbs/in2 = 1kPa / 6.89479 (kPa / psi) or Divide kPa by 6.89479
  • psi to kPa, 6.89476 kPa = 1 psi (multiply psi by 6.89476)

Volume Conversions

  • m3/ kg to in3/lbs, 27679.9 in3/lbs = 1 m3/ kg, ( multiply m3/ kg by 27679.9 to get in3/lbs )
  • in3/lbs to m3/ kg, 3.6127 x 10-5 m3/ kg = 1 in3/lbs ( divide in3/lbs by 3.6127 x 10-5 )

Energy Conversions

  • BTU/lbs to kJ/kg, 1 kJ/k = 0.429923 BTU/lbs ( multiple BTU/lbs by 0.429923 )
  • kJ / kg to Btu / lbs, 1 BTU/lbs = 2.326 kJ/kg ( divide kJ/kg by 2.326 )

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