蒸汽热量问题

本帖最后由 sunjl1981 于 2013-1-6 20:41 编辑
220摄氏度，7公斤的水蒸汽是过热蒸汽吗？如果是的话，220摄氏度的过热蒸汽降至165摄氏度，会放出多少热量？（700KPA压力下）哪位达人可以帮忙计算下？蒸汽的量取1mol或者1t都行，麻烦给出计算过程。=。=～

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hcbbs

肯定是过热蒸汽，7kg饱和蒸汽的温度为170度。


温度
绝对压力
蒸汽比容
蒸汽密度
液体焓
蒸汽焓
汽化热
℃
kPa
m3/kgkg/m3
kJ/kg
kJ/kg
kJ/kg
0
0.61
206.5
0.0048
0.00
2491.3
2491.3
5
0.87
147.1
0.0068
20.94
2500.9
2480.0
10
1.23
106.4
0.0094
41.87
2510.5
2468.6
15
1.71
77.9
0.0128
62.81
2520.6
2457.8
20
2.33
57.8
0.0172
83.74
2530.1
2446.3
25
3.17
43.4
0.0230
104.68
2538.6
2433.9
30
4.25
32.93
0.0304
125.60
2549.5
2423.7
35
5.62
25.25
0.0396
146.55
2559.1
2412.6
40
7.37
19.55
0.0511
167.47
2568.7
2401.1
45
9.58
15.28
0.0654
188.42
2577.9
2389.5
50
14.98
12.054
0.0830
209.34
2587.6
2378.1
55
15.74
9.589
0.1043
230.29
2596.8
2366.5
60
19.92
7.687
0.1301
251.21
2606.3
2355.1
65
25.01
6.209
0.1611
272.16
2615.6
2343.4
70
31.16
5.052
0.1979
293.08
2624.4
2331.2
75
38.50
4.139
0.2416
314.03
2629.7
2315.7
80
47.40
3.414
0.2929
334.94
2642.4
2307.3
85
57.90
2.832
0.3531
355.90
2651.2
2295.3
90
70.10
2.365
0.4229
376.81
2660.0
2283.1
95
84.50
1.985
0.5039
397.77
2668.8
2271.0
100
101.30
1.675
0.5970
418.68
2677.2
2258.4
105
120.80
1.421
0.7036
439.64
2685.1
2245.5
110
143.30
1.212
0.8254
460.97
2693.5
2232.4
115
170.00
1.038
0.9635
481.51
2702.5
2221.0
120
198.60
0.893
1.1199
503.67
2708.9
2205.2
125
232.10
0.7715
1.2960
523.38
2716.5
2193.1
130
270.20
0.6693
1.4940
546.38
2723.9
2177.6
135
313.00
0.5831
1.7150
565.25
2731.2
2166.0
140
361.40
0.5096
1.9620
589.08
2737.8
2148.7
145
415.60
0.4469
2.2380
607.12
2744.6
2137.5
150
476.10
0.3933
2.5430
632.21
2750.7
2118.5
160
618.10
0.3075
3.2520
675.75
2762.9
2087.1
170
792.40
0.2431
4.1130
719.29
2773.3
2054.0
180
1003.00
0.1944
5.1450
763.25
2782.6
2019.3
190
1255.00
0.1568
6.3780
807.63
2790.1
1982.5
200
1554.00
0.1276
7.8400
852.01
2795.5
1943.5
210
1917.00
0.1045
9.5690
897.23
2799.3
1902.1
220
2320.00
0.0862
11.6000
942.45
2801.0
1858.5
230
2797.00
0.07155
13.9800
988.50
2800.1
1811.6
240
3347.00
0.05967
16.7600
1034.56
2796.8
1762.2
250
3976.00
0.04998
20.0100
1081.45
2790.1
1708.6
260
4693.00
0.04199
23.8200
1128.76
2780.9
1652.1
270
5503.00
0.03538
28.2700
1176.91
2760.3
1591.4
280
6220.00
0.02988
33.4700
1225.48
2752.0
1526.5
290
7442.00
0.02525
39.6000
1274.46
2732.3
1457.8
300
8591.00
0.02131
46.9300
1325.54
2708.0
1382.5
310
9876.00
0.01799
55.5900
1378.71
2680.0
1301.3
320
11300.00
0.01516
65.9500
1436.07
2648.2
1212.1
330
12880.00
0.01273
78.5300
1446.78
2610.5
1113.7
340
14510.00
0.01064
93.9800
1562.93
2568.6
1005.7
350
16530.00
0.00884
113.2000
1632.20
2516.7
880.5