空气的热力学性质

1、THERMOPHYSICAL PROPERTIES OF AIREric W. LemmonThese tables summarize the thermophysical properties of air in the liquid and gaseous states as calculated from the pseudo-pure fluid equation of state of Lemmon et al. (2000). The first table refers to liquid and gaseous air at equilibrium as a function

2、 of tempera ture. The tabulated properties are the bubble-point pressure (i.e., pressure at which boiling begins as the pressure of the liquid is low ered)； the dew-point pressure (i.e. pressure at which condensation begins as the pressure of the gas is raised)； density (p)； enthalpy (/)； entropy (S

3、)； isochoric heat capacity (C )； isobaric heat capacity (C )； speed of sound (“)； viscosity ()； and thermal conductivity (A). The first line of identical temperatures is the bubble-point (liquid) and the second line is the dew point (vapor). The normal boiling point of air, i.e., the temperature at

4、which the bubble-point pressure reaches 1 standard atmosphere (1.01325 bar), is 78.90 K (-194.25 *C).The second table gives the properties of air along various isobars. An entry with non-integer temperatures in the isobar section indicates a phase transition (iiquid-vapor) at these temperatures； pro

5、perty values are then given for both phases These are identified by the high densities in the liquid and the low densities in the vapor. Additional calculations at state points not listed below can be obtained by using the NIST program REFPROP (http：/www. /srd/nist23.htm).References1. Lemmon

6、, lacobsen, R.T, Penoncello, S.G., and Friend, D.G., I hermodynamic Properties of Air and Mixtures of Nitrogen, Argon, and Oxygen from 60 to 2000 K at Pressures to 2000 MPa, / Phys. Cheat. Ref. Data, 29,331, 20002 Lemmon, E.W. and lacobscn. R.'I； Viscosity and Thermal Conductivity Equations for

7、Nitrogen, Oxygen, Argon, and Air. bit. J, Thermophys., 25,21,2004.3. Lemmon, E.W., Huber, M丄 McLinden, M.O., NIST Standard Reference Database 23： Reference Fluid Thermodynamic and Transport Properties-REFPROR Version 8.0, National Institute of Standards and Technology, Standard Reference Data Progra

8、m, Gaithersburg* Maryland, 2007 (/srd/nist23.htm).Thermophysical Properties of Air along the Boiling and Condensation CurvesT KP MPaP 超m二H Mkg1Skl kg BK 1q k|kg BK 1k| kg 1 K1u mLn pPa«A mW m 1 K->59.750.005265Q57.6-36.66-0.53061.1741.9011030.376.6171.459.750.0024320.1421185.53.3

9、400.71841.009154.84.2205.294600.005546956.5-36.19-0.52261.1731.901102R371.9171.0600.0025840.1504185.83.3260.71861.009155.14.2385.320620.008270948.2-32.38-0.46031.1571.9011012.336.9167.8620.0041110.2318187.73.2250.71981.012157.64.3865.529640.01200939.9-28.58-0.39991.1431.902995.8306.3164.5640.0063250

10、.3460189.63.1320.72121.015160.04.5325.739660.016QQ021.5-24.77-0.24141.1201.003070.1279.4161.3660.0094420.5018191.53.0470.72301.019162.34.6795.950680.02352923.0-20.95-0.28461.1151.906962.2255.7158.0680.013710.7089193.42.9680.72521.024164.54.8256.162700.03191914.4-17.13-0.22931.1021.908945.1234.8154.7

11、700.019430.9785195.22.8960.72771.030166.74.9706.376720.04250905.7-13.31-0.17561.0901.912927.7216.3151.4720.026921.322197.02.8280.73051.037168.75.1156.592740.05566897.0-9.468-0.12321.0781.917910.0199.9148.1740.036551.753198.72.7660.73381.046170.65.2606.810760.07179888.1-5.617-0.072091.0671.923892.118

12、5.2144.8760.048702.285200.42.7080.73751.055172.55.4057.031780.09129879.1-1.751-0.022171.0561.930873.9172.1141.5780.063812.933202.02.6530.74161.066174.25.5497.256KO0.1146870.02.1320.026651.0451.938855.4160.4138.2800.082323.711203.62.6020.74601.078175.85.69-17.485820.1422860.76.0360.074441.0351.9-1883

13、6.7149.8134.8820.10474.635205.12.5540.75101.092177.45.8397.719840.1745851.39.9620.12131.0251.959817.6140.2131.4R40 UH5.724206.52S0Q0.7561 10817RR5Q«47.QW860.2121841.713.910.16731.0161.972798.2131.5128.1860.16316.993207.82.4660.76201.125180.06.1318.206880.2553832.017.900.21251.0071.986778.6123.6

14、124.8880.20028.464209.12.4250.76821.144181.26.2788.4616-15Thermophysical Properties of Air6-#T KP MPaP kgm 1H Mkg1S klkg1q k|kg K1s kJ kg 1 K-'u m«_l7 pPacX mW m 1 K_,900.3CM8822.021.910.25690.99842.003758.5116.4121.4900.243210.16210.32.3860.77481.166182.26.4278.725920.3609811.825.970.30070

15、.99022.022738.2109.7118.0920.292712.09211.42.344)0.78171.190183.16.5789.001940.4243801.430.060.34390.98252.044717.5103.6114.6940.349314.29212.32.3130.78911.217183.86.7329.289960.4954790.734.210.38660.97522.069696.597.88111.2960.413616.78213.22.2790.79691.248184.56.8899.593980.5749779.738.410.42HS0.9

16、6842.098675.092.57107.8980.486119.60214.02.2460.80521.282184.97.0S09.9151000.6631768.442.660.47070.96192.131653.387.61104.41000674? 76714 62 220«H«I no7 91R10 761020.7608756.746.980.51220.95602.168631.182.94101.01020.658226.32215.12.1820.82301.363185.57.38710.631040.8684744.651.380.55350.9

17、5052.212608.578.5397.621040.759030.31215.52.1510.83261.413185.67.56611.021060.9864732.155.860.59470.94562.262585.574.3594.251060.870634.78215.72.1200.84291.470185.57.75411.461081.116719.160.440.63580.94122.321562.170.3690.891080.993439.79215.82.0890.85371.536185.27.95211.941101.256705.565.120.67690.

18、93752.390538.266.5487.551101.12245.41215.62.0590.86531.614184.98.16312.471121.409691.269.930.71820.93452.472513.962.8784.241121.27651.73215.22.0280.87771.708184.38.39113.071141.575676.274.870.75980.93242.571489.059.3180.061141.43758.84214.61.9970.89121.821183.68.63713.761161.755660.379.980.80190.931

19、22.693463.555.8577.721161.61266.88213.81.9650.90591.961182.78.90914.561181.948643.485.290.84470.93122.847437.352.4774.521181.80176.04212.61.9320.92202.139181.79.21015.501202.156625.190.830.88850.93273.(M8410.249.1371.361202.00786.55211.01.8980.94022.374180.49.55216.631222.379605.396.660.93380.93633.

20、323382.045.8168.241222.22998.76208.91.8610.96082.694179.19.94618.041242.617583.3102.90.98110.94273.723352.342.4665.171242.468113.2206.31.8210.98473.157177.510.4119.851262.872558.3109.71.0320.95374.367320.439.0162.181262.727130.6202.91.7771.0133.882175.810.9822.291283.14352S.3117.31.0880.97285.589285

21、.035.3359.441283.006152.6198.31.7251.0495.166174.011.7225.841303.429488.3126.71.1571.0108.849243.731.0758.051303.308182.7191.71.6601.0968.033171.912.7731.811323.723411.2142.61.2731.11735.04189.124.4767.801323.646235.4179.71.5561.16820.65169.414.8047.00132.633.785302.6164.51.43717.83x7KP kgm 1HMkg

22、9;ii i.Sk| kg 1 K 1qk) kg 1 K 1ii.s kjkg1“7A mW m 1 K 1ms_,pPasP = 0.1 MPa (1 bar)60956.7-36.11-0.52301.1731.9011029.372.4171.178.79875.5-0.2237-0.0028181.0511.9338667167.4140.281.614.4422002.5630.75001.089177.15.8117.6731003.557224.32.7790.72821.040198.27.1079.469Thermophysical Properties of Air6-1

23、9T KP kgm 1HMkg1Sk| kg 1 K 1c. kJ kg 1 K1s 町 kg'K 1uV pPacA mW m-1 K1202.938244.92.9660.72111.022218.38.45711.381402.507265.23.1230.71841.014236.49.75013.241602.188285.53.2580.71721.011253.210.9915.051801.942305.63.3770.71661.008268.812.1816.802001.746325.83.4830.71631.007283.513.3318.502201.586

24、345.93.5790.71631.006297.414.4420.162401.453366.03.6670.71641.006310.715.5121.772601.341386.23.7470.71681.006323.416.5523352S01.245406.33.8220.71731.006335.617.5624.883001.161426.43.8910.71811.007347.418.5426.383201.0894-16.53.9560.71921.007358.719.4927.85顽1 0?44667401R0 79061 0()Q询670 417Q7Q3600.96

25、74486.94.0750.72231.010380.321.3230.713800.9164507.14.1300.72431.012390.522.2032.094000.8706527.44.1820.72661.014400.523.0633.455000.6964629.54.4100.74261.030446.427.0939.946000.5803733.64.5990.76411.051487.130.7746.017000.4974839.94.7630.78791.075523.934.1851.768000.4352948.64.9080.81171.099557.837

26、.3757.259000.386910605.0390.83401.121589.640.3962.5410000.34821173.5.1580.85401.141619.643.2867.68P = 0.5 MPa (5 bar)60957.3-35.80-0.524«1.1731.9001031.374.6171.480870.92.3870.024301.0461.934858.5161.4138.696.12790.034.460.38920.97482.071695.297.55111.098.3620.14214.12.2400.80671.288185.07.0799

27、.97410019.65216.22.2610.79671.261187.47.19210.1012015.48239.62.4750.74611.115212.48.S4211.8114012.94261.42.6430.73111.068232.89.83413.5816011.17282.52.7840.72451.045250.911.0715.321809.842303.32.9060.72131.032267.412.2617.042008.811323.83.0140.71951.0252S2.613.4118.712207.981344.33.1120.71861.020297

28、.014.5120.342407.297364.63.2000.71821.017310.615.5821.942606.724385.03.2820.71821.015323.516.6223.502806.235405.23.3570.71851.014335.917.6225.023005.813425.53.4270.71911.013347.818.6026.513205.446445.83.4920.72001.013359.319.5427.973405.123466.03.5530.72131.013370.320.4729.413604.836486.33.6110.7229

29、1.014381.021.3730.813804.580506.63.6660.72481.016391.322.2432.194004.350526.93.7180.72711.018401323.1033.555003.477629.33.9470.74291.032447.327.1340.026002.897733.54.1370.76431.053488.030.8046.077002.483810.04.3010.78811.076524.834.2051.808002.17394S.84.4460.81191.100558.737.4057.299001.9321060.4.57

30、70.83411.122590.540.4262.5810001.7391173.4.6960.85421.142620.443.3067.71P- 1 MPa (10 bar)60958.0-35.42-0.52711.1741.8981033.377.2171.780872.22.7200.021291.0471.930862.5162.8139.1100770.142.760.46730.96232.119658.288.33105.0106.22730.756360.59920.94512.268583.073.9093.88108.1040.07215.82.0880.85431.5

31、40185.27.96311.96T KP kgm 1HMkg1SMkg 'K 1c. M kg 1 K1s kJkfTK 1u7 pPacA mW m1 K12033.48232.32.2330.78-M1.285204.08.71812.5914027.02256.32.4190.74811.148228.29.97814.1116022.94278.72.5680.73411.093248.111.2015.7418020.03300.22.6950.72731.065265.712.3817.3820017.83321.32.8060.72361.048281.713.5119

32、.0022016.09342.22.9060.72161.038296.614.6120.6024014.68362.92.W60.72041.031310.615.6722.1726013.50383.53.0780.71991.026323.816.7023.702S012.S0403.93.1S40.71991.023336.417.7025.2130011.64424.43.2240.72031.021348.418.6726.6832010.904-14.83.2900.72111.020360.019.6228.13顽m茁久列0797?1 OIQa71 170 £4360

33、9.668485.63.4100.72371.019381.921.4330.953809.153506.03.4650.72551.020392.322.3132.324008.690526.43.5180.72771.022402.323.1633.675006.943629.13.7470.74341.034448.527.1840.116005.784733.53.9370.76461.054489.230.8446.157004.957840.04.1010.78841.077526.034.2451.878004.338948.94.2470.81211.100559.937.43

34、57.359003.85710604.3780.83431.122591.540.4562.6310003.4721173.44970.85431.142621.543.3367.75P = 2 MPa (20 bar)60.111959.1-34.44-0.52821.1751.8951037.380.5172.280874.63.3900.015351.0481.921870.2165.5140.1100775.043.090.45760.96362.086672.590.43106.6118.52638.886.690.85590.93142.894430.451.6073.71119.

35、9486.20211.01.8990.93962.365180.5954016.5912086.03211.21.9000.93822.354180.79.54216.5714059.88244.82.1610.78831.387218.310.4415.6816048.61270.52.3330.75451.213242.711.5516.8018041.54294.02.4710.73961.139262.812.6718.2120036.52316.32.5890.73191.100280.313.7719.6922032.70338.02.6920.72751.076296.214.8

36、421.1924029.66359.42.7850.72491.060310.815.8822.6826027.18380.52.8700.72351.050324.616.8924.1628025.11401.42.9470.722S1.042337.617.8825.6230023.34422.23.0190.72271.037349.918.8427.0632021.82442.93.0860.72311.033361.719.7728.4734020.49463.53.14H0.72401.031373.020.6829.8736019.32484.13.2070.72531.0303

37、83.921.5731.2438018.27504.73.2630.72691.029394.422.4432.5940017.34525.33.3150.72901.029404.523.2933.9350013.84628.63.5460.74421.039450.827.2840.3160011.52733.43.7370.76531.057491.530.9346.307009.878840.23.9020.78891.079528.334.3252.008008.646949.34.0470.81251.102562.137.4957.469007.6891061.4.1780.83

38、461.123593.740.5062.7310006.9231174.4.2980.85461.143623.643.3867.84P-5 MPa (50 bar)60.641961.4-31.10-0.52461.1761.886104E386.2173.380881.75.437-0.0017661.0541.898892.1173.5143.0100788.344.270.43110.96812.009710.696.44111.1120665.187.670.82560.91942.429496.857.0679.02140321.3172.51.4671.0498.515199.5

39、19.2543.18T KP kgm 1HMkg1Sk| kg 1 K 1c. kJ kg 1 K1s kJkgK1ume-1V pPacX mW m 1 K160151.4240.71.9300.82691.916231.813.8022.96180116.7273.42.1230.77851.453258.214.1422.0220097.93300.62.2670.75691.288279.414.9022.5422085.43325.52.3850.74511.205297.715.7723.4924076.25349.02.4880.73811.155314.016.6824.622

40、6069.12371.82.5790.73381.123328.817.6025.8328063.36394.02.6610.73121.101342.718.5227.0930058.59415.82.7360.72971.085355.619.4228.3932054.55437.42.8060.72911.074367.920.3129.6934051.07458.82.8710.72921.065379.621.1830.9836048.05480.12.9320.72981.059390.722.0432.27«nM乜G 2?QRQ0 7101耐4()14yy«&

41、#171;g胡40043.01522.33.0430.73271.052411.723.7034.8150034.21627.43.2770.74661.052458.327.6140.9760028.48733.23.4700.76711.066498.931.2046.8370024.42840.83.6360.79031.085535.434.5552.4380021.39950.43.7820.81361.106569.037.6957.8390019.031062.3.9140.83561.127600.340.6863.04100017.141176.4.0340.85541.14

42、6629.943.5468.1210 MPa (100 bar)61.521965.2-25.55-0.51871.1771.8711064.395.1175.080892.48.950-0.028311.0631.868925.2186.8147.5100806.946.730.39300.97671.924763.5105.8117.8120706.186.650.75650.91922.094591.167.0089.01140573.7132.11.1060.89162.517418.141.8263.61160397.0188.01.4790.87872.882297.624.994

43、3.38180273.3238.01.7740.82672.098283.119.3132.89200214.1274.81.9680.79081.646296.318.1629.63220179.9305.42.1140.77011.434312.418.1728.80240157.0332.S2.2330.75741.317328.018.6028.89260140.2358.32.3360.74921.245342.719.2029.38280127.3382.72.4260.74391.196356.519.9030.15300116.9406.32.5070.74041.162369

44、.520.6431.12320108.3429.32.5820.73831.138381.821.4032.15340101.0451.82.6500.73721.120393.522.1733.22360<>4.80474.12.7140.73691.106404.622.9534.3338089.36496.12.7730.73741.096415.323.7235.4540084.57517.92.8290.73841.088425.624.4936.S850067.06625.73.0700.75051.073471.828.1942.2660055.82733.33.2660.76991.080511.931.6747.8470047.90842.034330.79261.095S47.834.9453.2680042.00952.43.5810.81551.113580.8320458.5290037.421065.3.7130.83721.132611.640.9963.64100033.751179.3.8330.85681.150640.743.8168.64/>=20 MPa (200bar)63.24*972.3-14.49-0.50691.1801.8471094.411.4178.480911.316.25