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7-2
7.4 HFC134a, temperature - vapor pressure characteristics table
Temperature
Vapor pressure
Temperature
Vapor pressure
°
C
kPa
kg/cm
2
G
°
C
kPa
kg/cm
2
G
– 40.0
– 49
– 0.5015
20.0
470
4.7977
– 39.0
– 46
– 0.4734
21.0
488
4.9795
– 38.0
– 44
– 0.4440
22.0
507
5.1656
– 37.0
– 41
– 0.4135
23.0
525
5.3560
– 36.0
– 37
– 0.3817
24.0
544
5.5508
– 35.0
– 34
– 0.3486
25.0
564
5.7500
– 34.0
– 31
– 0.3141
26.0
584
5.9538
– 33.0
– 27
– 0.2783
27.0
604
6.1621
– 32.0
– 24
– 0.2410
28.0
625
6.3751
– 31.0
– 20
– 0.2023
29.0
647
6.5929
– 30.0
– 16
– 0.1621
30.0
668
6.8154
– 29.0
– 12
– 0.1204
31.0
691
7.0428
– 28.0
– 8
– 0.0771
32.0
713
7.2751
– 27.0
– 3
– 0.0322
33.0
737
7.5124
– 26.0
1
0.0144
34.0
760
7.7548
– 25.0
6
0.0627
35.0
785
8.0023
– 24.0
11
0.1128
36.0
810
8.2551
– 23.0
16
0.1646
37.0
835
8.5131
– 22.0
21
0.2183
38.0
861
8.7765
– 21.0
27
0.2739
39.0
887
9.0453
– 20.0
32
0.3314
40.0
914
9.3196
– 19.0
38
0.3908
41.0
941
9.5994
– 18.0
44
0.4523
42.0
969
9.8849
– 17.0
51
0.5159
43.0
998
10.1762
– 16.0
57
0.5816
44.0
1027
10.4732
– 15.0
64
0.6494
45.0
1057
10.7761
– 14.0
71
0.7195
46.0
1087
11.0850
– 13.0
78
0.7918
47.0
1118
11.3999
– 12.0
85
0.8664
48.0
1149
11.7209
– 11.0
93
0.9434
49.0
1182
12.0481
– 10.0
100
1.0229
50.0
1214
12.3815
– 9.0
108
1.1048
51.0
1248
12.7213
– 8.0
117
1.1892
52.0
1281
13.0676
– 7.0
125
1.2761
53.0
1316
13.4203
– 6.0
134
1.3657
54.0
1351
13.7797
– 5.0
143
1.4580
55.0
1387
14.1457
– 4.0
152
1.5530
56.0
1424
14.5185
– 3.0
162
1.6508
57.0
1461
14.8982
– 2.0
172
1.7514
58.0
1499
15.2848
– 1.0
182
1.8549
59.0
1538
15.6785
– 0.0
192
1.9613
60.0
1577
16.0793
1.0
203
2.0708
61.0
1617
16.4873
2.0
214
2.1833
62.0
1658
16.9027
3.0
225
2.2989
63.0
1699
17.3254
4.0
237
2.4177
64.0
1741
17.7557
5.0
249
2.5398
65.0
1784
18.1936
6.0
261
2.6651
66.0
1828
18.6391
7.0
274
2.7937
67.0
1872
19.0925
8.0
287
2.9258
68.0
1918
19.5539
9.0
300
3.0613
69.0
1964
20.0232
10.0
314
3.2004
70.0
2010
20.5007
11.0
328
3.3430
71.0
2058
20.9864
12.0
342
3.4892
72.0
2107
21.4805
13.0
357
3.6392
73.0
2156
21.9831
14.0
372
3.7929
74.0
2206
22.4943
15.0
387
3.9505
75.0
2257
23.0142
16.0
403
4.1119
76.0
2309
23.5430
17.0
419
4.2773
77.0
2362
24.0807
18.0
436
4.4467
78.0
2415
24.6276
19.0
453
4.6201
79.0
2470
25.1837
80.0
2525
25.7492
Conversion rate : 1kg
f/cm
2
G=98.0665kPa
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