蒸汽热量计算MicrosoftWord文档.pdf

从你的蒸汽温度和压力情况看，基本上是饱和水蒸气。计算分两步计算，首先，蒸汽变成100的水，利用的是潜热，100的水变成80水利用的是显热。（1）蒸汽变成100的水放热查得 180的蒸汽潜热约为2020KJ.zhangyong6404 发表于 2009-9-12 23:07个人认为二楼的算法有疑问，按这个算法将 100 101Kpa 的蒸汽变成80的水释放的热量=100的蒸汽潜热+100水变成80释放热=2258.4+84=2342.4kj 大于 180的数据。即便是80的蒸汽变成80的水潜热也在 2307kj 也比前者大。2020 的数据应该是180时蒸汽变成 180的水说释放的热量然后 180 摄氏度的水变成80 摄氏度的水还要释放能量应该是2020+（180-80）*4.2=2440KJ 精确的数据是2447.31，由 180时的汽化热2019.3KJ 加上 180水的液体焓减去80的水的液体焓（763.25-334.03）。不过压力好像不太对得上，要高于8.7 公斤。饱和水蒸汽表(按温度排列)温度绝对压力蒸汽比容蒸汽密度液体焓蒸汽焓汽化热kPam3/kgkg/m3kJ/kgkJ/kgkJ/kg00.61 206.50.0048 0.00 2491.3 2491.3 50.87 147.10.0068 20.94 2500.9 2480.0 101.23 106.40.0094 41.87 2510.5 2468.6 151.71 77.90.0128 62.81 2520.6 2457.8 202.33 57.80.0172 83.74 2530.1 2446.3 253.17 43.40.0230 104.68 2538.6 2433.9 304.25 32.930.0304 125.60 2549.5 2423.7 355.62 25.250.0396 146.55 2559.1 2412.6 407.37 19.550.0511 167.47 2568.7 2401.1 459.58 15.280.0654 188.42 2577.9 2389.5 5014.98 12.0540.0830 209.34 2587.6 2378.1 5515.74 9.5890.1043 230.29 2596.8 2366.5 6019.92 7.6870.1301 251.21 2606.3 2355.1 6525.01 6.2090.1611 272.16 2615.6 2343.4 7031.16 5.0520.1979 293.08 2624.4 2331.2 7538.50 4.1390.2416 314.03 2629.7 2315.7 8047.40 3.4140.2929 334.94 2642.4 2307.3 8557.90 2.8320.3531 355.90 2651.2 2295.3 9070.10 2.3650.4229 376.81 2660.0 2283.1 9584.50 1.9850.5039 397.77 2668.8 2271.0 100101.30 1.6750.5970 418.68 2677.2 2258.4 105120.80 1.4210.7036 439.64 2685.1 2245.5 110143.30 1.2120.8254 460.97 2693.5 2232.4 115170.00 1.0380.9635 481.51 2702.5 2221.0 120198.60 0.8931.1199 503.67 2708.9 2205.2 125232.10 0.77151.2960 523.38 2716.5 2193.1 130270.20 0.66931.4940 546.38 2723.9 2177.6 135313.00 0.58311.7150 565.25 2731.2 2166.0 140361.40 0.50961.9620 589.08 2737.8 2148.7 145415.60 0.44692.2380 607.12 2744.6 213*150476.10 0.39332.5430 632.21 2750.7 2118.5 160618.10 0.30753.2520 675.75 2762.9 2087.1 170792.40 0.24314.1130 719.29 2773.3 2054.0 1801003.00 0.19445.1450 763.25 2782.6 2019.3 1901255.00 0.15686.3780 807.63 2790.1 1982.5 2001554.00 0.12767.8400 852.01 2795.5 1943.5 2101917.00 0.10459.5690 897.23 2799.3 1902.1 2202320.00 0.086211.6000 942.45 2801.0 1858.5 2302797.00 0.0715513.9800 988.50 2800.1 1811.6 2403347.00 0.0596716.7600 1034.56 2796.8 1762.2 2503976.00 0.0499820.0100 1081.45 2790.1 1708.6 2604693.00 0.0419923.8200 1128.76 2780.9 1652.1 2705503.00 0.0353828.2700 1176.91 2760.3 1591.4 2806220.00 0.0298833.4700 1225.48 2752.0 1526.5 2907442.00 0.0252539.6000 1274.46 2732.3 1457.8 3008591.00 0.0213146.9300 1325.54 2708.0 1382.5 3109876.00 0.0179955.5900 1378.71 2680.0 1301.3 32011300.00 0.0151665.9500 1436.07 2648.2 1212.1 33012880.00 0.0127378.5300 1446.78 2610.5 1113.7 34014510.00 0.0106493.9800 1562.93 2568.6 1005.7 35016530.00 0.00884113.2000 1632.20 2516.7 880.5