过热蒸汽与饱和蒸汽.doc

过热蒸汽：
当湿饱和蒸汽中的水全部汽化即成为干饱和蒸汽，此时蒸汽温度仍为沸点温度。如果对于饱和蒸汽继续加热，使蒸汽温度升高并超过沸点温度，此时得到的蒸汽称为过热蒸汽。

P
MPa
t（℃）
150
170
190
210
230
250
270
290
0.10
0.15
0.20
0.25
0.30
0.40
0.50
0.80
1.10
1.40
1.70
2.00
2.50
3.00
3.50
4.00
4.50
5.00
6.00
7.00
8.00
9.00
10.0
12.5
15.0
17.5
20.0
21.5
0.5164
0.7781
1.0423
1.3089
1.5783
2.1237
2.6658
4.3966
6.1313
7.8785
9.8464
11.6295
15.1890
18.4168
22.7008
27.164
30.3852
35.4243
43.8954
56.7201
65.4713
84.5457
108.6250
158.3464
206.4175
250.3934
327.8165
384.6647
0.4925
0.7412
0.9918
1.2444
1.4990
2.0141
2.5380
4.1676
5.8332
7.5163
9.3688
11.0985
14.4516
17.5709
21.5713
25.7470
28.9163
33.6293
41.7475
53.6991
62.1800
79.8261
102.0289
148.7516
194.4276
236.6910
309.9521
363.2975
0.4707
0.7079
0.9466
1.1869
1.4287
1.9166
2.4121
3.9372
5.5342
7.1540
9.2473
10.5676
13.7150
16.7243
20.4427
24.3303
27.4475
31.8342
39.5988
50.6780
58.8883
75.1061
95.4346
139.1578
182.4477
222.8603
291.2953
341.9027
0.4507
0.6777
0.9056
1.1349
1.3653
1.8297
2.2997
3.7400
5.2356
6.7913
8.4130
10.0366
12.9776
15.8776
19.3131
22.9129
25.9784
30.0384
37.4508
47.6561
55.5968
70.3863
88.8412
129.5629
170.4577
209.1592
273.4409
320.5455
0.4323
0.6500
0.8684
1.0849
1.3079
1.7513
2.1992
3.5655
4.9719
6.4288
7.9352
9.5054
12.2406
15.0367
18.2266
21.4954
24.5096
28.2433
35.3020
44.6352
52.3061
65.6665
82.2486
119.9781
158.4766
195.4568
255.5786
299.1880
0.4156
0.6246
0.8342
1.0445
1.2540
1.6527
2.1081
3.4110
4.7459
6.1147
7.5219
8.9744
11.5036
14.1842
17.0530
20.0778
23.0407
26.4483
33.1541
41.6133
49.0145
60.9465
75.6543
110.3842
146.4967
181.6261
236.9217
277.7931
0.4001
0.6010
0.8027
1.0048
1.2077
1.6152
2.0255
3.2718
4.5445
5.8437
7.1713
8.5350
10.8794
13.3377
15.9243
18.6603
21.5717
24.6532
31.0062
38.5922
45.7231
56.220
65.7699
95.7769
127.6820
163.4280
219.0574
256.4260
0.3857
0.5795
0.7736
0.9682
1.1634
1.5554
1.9495
3.1453
4.3612
5.6006
6.8607
8.1447
10.3500
12.6359
15.0163
17.4997
20.1028
22.8580
28.8574
35.5704
42.4316
51.5077
62.4676
91.1964
122.5268
154.2312
201.2031
235