制冷劑的熱力學性質(zhì)表

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制冷劑的熱力學性質(zhì)表

常用制冷劑熱力學性質(zhì)表

在制冷的應用計算中，還經(jīng)常用到制冷劑的熱力性質(zhì)表。在表中詳細列出了制冷劑的六種熱力學基本參數(shù)的具體數(shù)值，包括：溫度值（℃）、壓力值（P）、飽和液體和干飽和蒸氣的比容值（v）、焓值（h）、熵值（s）及蒸發(fā)潛熱（即汽化熱r），根據(jù)制冷劑的飽和溫度或飽和壓力，可以很便利地查到在該狀態(tài)下的其余幾種熱力學參數(shù)的數(shù)值，為熱力學計算提供了極大的便利，大大地簡化了大量繁雜的計算程序。制冷劑的熱力學性質(zhì)表（一）

R12制冷劑飽和狀態(tài)熱力性質(zhì)表1

焓絕對壓力比容

溫度t

P液體v/蒸氣v//液體h/（℃）

（MPa）(dm3/kg)(m3/kg)(kJ/kg)-35-30

0.08070.1004

0.66560.67200.67230.67860.68550.69260.70010.7078

0.19540.15940.15820.13120.10890.09100.07660.0650

168.37172.81172.99177.28181.76186.28190.82195.39

熵

汽化熱r

蒸氣//蒸氣S//(kJ/kg)液體S/（kJ/kg）(kJ/kgK)(kJ/kgK)335.85338.15338.24340.42342.68344.92347.14349.43

167.48165.34165.25163.14160.92158.64156.32153.93

0.87680.89520.89590.91330.93110.94870.96600.9831

1.58001.57511.57601.57071.56671.56321.56001.5571

-29.7920.10044-25-20-15-10-5

0.12370.15090.18260.21910.2610

（一）

R12制冷劑飽和狀態(tài)熱力性質(zhì)表2

焓溫度絕對壓比容

t力P液體v/蒸氣v//液體h/（℃）（MPa）(dm3/kg)(m3/kg)(kJ/kg)010203040

0.30860.42330.56730.74490.9607

0.71590.73330.75250.77390.7980

0.05540.04090.03080.02350.0182

200.00209.32218.82228.54238.54

汽化熱熵r蒸氣//液體S/蒸氣S//

（kJ/kg）(kJ/kg)(kJ/kgK)(kJ/kgK)351.48355.69359.73363.57367.15

151.48146.37140.91135.03128.61

1.00001.03321.06581.09801.1298

1.55451.55011.54651.54331.5405

501.21930.82570.0142248.88370.40121.521.1617

1.5377

（二）R22制冷劑飽和狀態(tài)熱力性質(zhì)表1

溫度絕對壓比容焓汽化熱熵t力Pr

液體v/蒸氣v//液體h/蒸氣//液體S/蒸氣S//

（℃）（MPa）(kJ/kg)

(dm3/kg)(m3/kg)(kJ/kg)（kJ/kg）(kJ/kgK)(kJ/kgK)-50-45-40.818-40-30-20-10

0.064550.08290.10130.10530.16390.24530.3547

0.69680.70380.70990.71100.72620.74270.7607

0.32330.25590.21220.20480.13520.09250.0651

144.23149.72154.32155.24166.25177.31188.53

383.55385.89387.82388.20392.63396.91400.97

239.32236.17233.50232.96226.38219.60212.44

0.77600.80030.82040.82420.87020.91460.9577

1.84871.81851.82521.82311.80141.78211.7649

（二）R22制冷劑飽和狀態(tài)熱力性質(zhì)表2溫度絕對壓比容

t力P

液體v/蒸氣v//

（℃）（MPa）

(dm3/kg)(m3/kg)0102030405060

0.49790.68090.91011.19121.53411.94322.4279

0.78040.80210.82650.85410.88610.92400.9706

0.04700.03460.02590.01970.01510.01160.0089

焓

液體h/蒸氣//(kJ/kg)（kJ/kg）200.00211.76223.86236.38249.45263.05277.46

404.73408.17411.18413.74415.66416.79416.83

汽化熱r(kJ/kg)

熵

液體S/蒸氣S//(kJ/kgK)(kJ/kgK)1.00001.04191.08331.12431.16581.20721.2500

1.74941.73521.72221.70921.69671.68331.6682

204.73196.41187.32177.36166.21153.74139.37

（三）

R134a制冷劑飽和狀態(tài)熱力性質(zhì)表1

焓溫度絕對壓比容汽化熱熵

t力Pr液體v/蒸氣v//液體h/蒸氣//液體S/蒸氣S//（℃）（MPa）(dm3/kg)(m3/kg)(kJ/kg)（kJ/kg）(kJ/kg)(kJ/kgK)(kJ/kgK)-30-20

0.08470.1330

0.7020.736

0.2240.146

161.9174.2

379.1385.3

217.2211.1

-100

0.20230.2928

0.7530.772

0.0990.069

187.0200.0

391.3397.2

204.3197.2

（三）

R134a制冷劑飽和狀態(tài)熱力性質(zhì)表2焓溫度絕對壓比容

t力P液體v/蒸氣v//液體h/（℃）（MPa）(dm3/kg)(m3/kg)(kJ/kg)102030405060

0.41460.57160.77011.01641.31761.6813

0.7930.8160.8420.8710.9060.949

0.0490.0360.0260.0200.0150.011

213.4227