1、Designation: D3956 07 D3956 12Standard Specification forMethane Thermophysical Property Tables1This standard is issued under the fixed designation D3956; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revision. A
2、number in parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.1. Scope1.1 The thermophysical property tables for methane are for use in the calculation of the pressure-volume-temperature (PVT),thermodynamic, a
3、nd transport properties of methane for process design and operations. Tables Three tables are provided forgaseous and liquid methane at temperatures between 90 K and 600K at pressures to 20 MPa. One table provides properties at theconditions of 30 MPa. Two tables provide properties for the liquid an
4、d vapor phases at liquid-vapor equilibrium (saturationproperties). The otherthird table provides properties at selected T,p points for the equilibrium phase at those conditions. The tableswere developed by the National Institute of Standards and Technology from a Standard Reference Database product
5、REFPROP,version 7.0.9.0.2. Applicability2.1 These tables apply directly only to pure gaseous methane. However, it is expected that they may find substantial use inmathematical models and tables for the thermophysical properties of mixtures containing methane.3. Tables3.1 Thermophysical Properties of
6、 Coexisting Gaseous and Liquid Methane, Methane Liquid at Liquid-Vapor Equilibrium, in SIunits.3.2 Thermophysical Properties of Methane Vapor at Liquid-Vapor Equilibrium, in SI units.3.3 Thermophysical Properties of Methane Along Isobars, in SI units.3.4 The tabulated properties are: = molar density
7、 (moll-1) = molar density (molL-1)H = molar enthalpy (Jmol-1)S = molar entropy (JK-1mol-1)Cv = constant volume molar heat capacity (JK-1mol-1)Cp = constant pressure molar heat capacity (JK-1mol-1)c = speed of sound (ms-1) = viscosity (Pas) = thermal conductivity (mWm-1K-1)3.5 These tables were produ
8、ced by equations from a computer package, “NIST Standard Reference Database 23; ReferenceFluid Thermodynamic and Transport Properties Database (REFPROP): Version 7.0.”9.0.” A wide selection of units (SI units,engineering units, chemical units) and additional properties are available with this progra
9、m.24. Additional Information4.1 Reference state properties are required to calculate certain of the thermodynamic properties (enthalpy, entropy, etc.) froman equation of state formulation. The reference state properties used to generate the tables in this specification are: enthalpy, H,and entropy,
10、S, at 298.15 K and 0.101325 MPa (H = 10018 J/mol and S = 186.266 J/(mol K). The molar mass of methane is 16.043g/mol.1 This specification is under the jurisdiction of ASTM Committee D03 on Gaseous Fuels and is the direct responsibility of Subcommittee D03.08 on ThermophysicalProperties.Current editi
11、on approved June 1, 2007Nov. 1, 2012. Published July 2007December 2012. Originally approved in 1982. Last previous edition approved in 20032007 asD3956 93 (2003)D3956 07. 1. DOI: 10.1520/D3956-07.10.1520/D3956-12.2 Available from Standard Reference Data, National Institute of Standards and Technolog
12、y (NIST), 100 Bureau Drive, Stop 3460, Gaithersburg, MD 20899.This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Becauseit may not be technically possible to adequately depict all ch
13、anges accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current versionof the standard as published by ASTM is to be considered the official document.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959.
14、United States15. Keywords5.1 methane gas tables; natural gas; thermodynamic properties of methane; transport properties of methaneD3956 122TABLE 1 Thermophysical Properties of Coexisting Gaseous and Liquid MethaneT p H S Cv Cp c K MPa moll-1 Jmol-1 Jmol-1K-1 Jmol-1K-1 Jmol-1K-1 ms-1 Pas mWm-1K-190.7
15、0 0.011705 28.141 -15564 9899.5 34.78 54.03 1538.5 201.9 211.290.70 0.011705 0.015641 -6832.4 9995.8 25.24 33.85 249.13 3.609 8.79292 0.013801 28.033 -15493 9900.3 34.64 54.10 1526.7 194.8 209.692 0.013801 0.018199 -6791.7 9994.9 25.27 33.92 250.76 3.658 8.94994 0.017613 27.866 -15385 9901.5 34.44 5
16、4.23 1508.4 184.4 207.294 0.017613 0.02277 -6729.6 9993.5 25.32 34.02 253.2 3.732 9.19296 0.022233 27.698 -15276 9902.6 34.26 54.37 1489.8 174.7 204.796 0.022233 0.028198 -6668.2 9992.3 25.37 34.14 255.57 3.808 9.43898 0.027778 27.528 -15167 9903.7 34.08 54.52 1471.0 165.6 202.298 0.027778 0.034587
17、-6607.4 9991.1 25.43 34.28 257.87 3.883 9.687100 0.034376 27.357 -15058 9904.8 33.91 54.68 1452.0 157.2 199.6100 0.034376 0.042048 -6547.5 9989.9 25.49 34.42 260.09 3.960 9.939102 0.042160 27.185 -14948 9905.9 33.74 54.85 1432.9 149.3 197.0102 0.042160 0.050695 -6488.4 9988.9 25.55 34.58 262.24 4.03
18、6 10.19104 0.051275 27.010 -14838 9907.0 33.58 55.04 1413.6 141.9 194.3104 0.051275 0.060649 -6430.3 9987.8 25.62 34.76 264.31 4.114 10.46106 0.061868 26.835 -14728 9908.0 33.42 55.23 1394.1 135.0 191.6106 0.061868 0.072034 -6373.1 9986.9 25.69 34.95 266.29 4.192 10.72108 0.074099 26.657 -14617 9909
19、.1 33.27 55.44 1374.5 128.6 188.8108 0.074099 0.08498 -6316.9 9985.9 25.76 35.16 268.20 4.270 10.99110 0.08813 26.478 -14505 9910.1 33.12 55.67 1354.7 122.7 186.1110 0.08813 0.099622 -6261.8 9985.0 25.84 35.38 270.01 4.349 11.26112 0.10413 26.297 -14393 9911.1 32.97 55.88 1334.8 117.0 183.3112 0.104
20、13 0.1161 -6207.9 9984.2 25.92 35.62 271.75 4.429 11.54114 0.12228 26.113 -14281 9912.1 32.82 56.13 1314.7 111.7 180.5114 0.12228 0.13455 -6155.2 9983.4 26.01 35.88 273.39 4.510 11.82116 0.14275 25.928 -14168 9913.1 32.68 56.38 1294.4 106.8 177.7116 0.14275 0.15514 -6103.8 9982.6 26.10 36.16 274.94
21、4.591 12.11118 0.16574 25.740 -14054 9914.0 32.54 56.65 1274.0 102.2 174.9118 0.16574 0.17801 -6053.8 9981.8 26.20 36.46 276.4 4.674 12.41120 0.19143 25.551 -13940 9915.0 32.40 56.94 1253.5 97.91 172.0120 0.19143 0.20332 -6005.2 9981.1 26.30 36.79 277.76 4.757 12.71122 0.22002 25.358 -13825 9915.9 3
22、2.26 57.25 1232.7 93.87 169.2122 0.22002 0.23125 -5958.1 9980.4 26.40 37.14 279.03 4.841 13.02124 0.2517 25.163 -13710 9916.8 32.13 57.57 1211.9 90.07 166.4124 0.2517 0.26197 -5912.6 9979.7 26.50 37.51 280.21 4.926 13.33126 0.28667 24.966 -13594 9917.8 32.00 57.92 1190.8 86.50 163.5126 0.28667 0.295
23、67 -5868.7 9979.1 26.62 37.92 281.28 5.012 13.66128 0.32514 24.765 -13477 9918.7 31.88 58.29 1169.5 83.13 160.6128 0.32514 0.33254 -5826.6 9978.4 26.73 38.36 282.25 5.100 13.99130 0.36732 24.562 -13359 9919.6 31.76 58.68 1148.1 79.95 157.8130 0.36732 0.37278 -5786.3 9977.8 26.85 38.84 283.13 5.188 1
24、4.33132 0.41341 24.355 -13240 9920.5 31.64 59.11 1126.4 76.94 154.9132 0.41341 0.41662 -5747.8 9977.2 26.98 39.35 283.90 5.278 14.69134 0.46363 24.145 -13121 9921.3 31.52 59.57 1104.6 74.09 152.1134 0.46363 0.46428 -5711.4 9976.6 27.11 39.91 284.57 5.370 15.05136 0.51819 23.931 -13000 9922.2 31.41 6
25、0.06 1082.5 71.39 149.2136 0.51819 0.51601 -5677.0 9976.1 27.25 40.51 285.13 5.464 15.42138 0.57730 23.713 -12879 9923.1 31.308 60.59 1060.2 68.82 146.4138 0.57730 0.57209 -5644.8 9975.5 27.397 41.17 285.58 5.559 15.81D3956 123TABLE 1 ContinuedT p H S Cv Cp c K MPa moll-1 Jmol-1 Jmol-1K-1 Jmol-1K-1
26、Jmol-1K-1 ms-1 Pas mWm-1K-1140 0.64118 23.491 -12756 9923.9 31.206 61.17 1037.7 66.37 143.5140 0.64118 0.63279 -5615.0 9975.0 27.549 41.88 285.93 5.656 16.21142 0.71006 23.265 -12632 9924.8 31.109 61.80 1014.9 64.04 140.7142 0.71006 0.69843 -5587.5 9974.4 27.709 42.67 286.16 5.756 16.62144 0.78415 2
27、3.034 -12507 9925.7 31.018 62.48 991.81 61.81 137.8144 0.78415 0.76935 -5562.6 9973.9 27.877 43.52 286.29 5.858 17.05146 0.86368 22.798 -12381 9926.5 30.932 63.22 968.46 59.67 135.0146 0.86368 0.84593 -5540.3 9973.4 28.054 44.47 286.30 5.962 17.50148 0.94887 22.556 -12253 9927.3 30.852 64.04 944.81
28、57.62 132.1148 0.94887 0.92857 -5520.9 9972.8 28.241 45.51 286.19 6.070 17.96150 1.0400 22.309 -12123 9928.2 30.78 64.93 920.85 55.64 129.3150 1.0400 1.0177 -5504.5 9972.3 28.439 46.66 285.97 6.181 18.45152 1.1372 22.055 -11992 9929.0 30.714 65.92 896.54 53.74 126.4152 1.1372 1.1140 -5491.3 9971.8 2
29、8.649 47.94 285.63 6.296 18.95154 1.2408 21.794 -11859 9929.9 30.656 67.02 871.87 51.90 123.6154 1.2408 1.2178 -5481.5 9971.3 28.872 49.36 285.16 6.415 19.49156 1.3509 21.526 -11724 9930.7 30.608 68.24 846.82 50.12 120.8156 1.3509 1.3299 -5475.3 9970.8 29.110 50.97 284.57 6.538 20.05158 1.4680 21.24
30、9 -11587 9931.5 30.569 69.61 821.35 48.39 117.9158 1.4680 1.4511 -5473.0 9970.2 29.363 52.78 283.86 6.667 20.65160 1.5921 20.964 -11447 9932.4 30.541 71.16 795.43 46.71 115.0160 1.5921 1.5821 -5475.0 9969.7 29.636 54.85 283.01 6.802 21.28162 1.7235 20.668 -11305 9933.2 30.526 72.91 769.03 45.07 112.
31、2162 1.7235 1.7241 -5481.6 9969.2 29.928 57.22 282.03 6.943 21.96164 1.8626 20.360 -11160 9934.1 30.525 74.92 742.10 43.46 109.3164 1.8626 1.8782 -5493.1 9968.6 30.244 59.96 280.91 7.093 22.70166 2.0096 20.040 -11011 9934.9 30.541 77.25 714.59 41.89 106.4166 2.0096 2.0459 -5510.2 9968.1 30.588 63.16
32、 279.65 7.252 23.49168 2.1647 19.706 -10859 9935.8 30.576 79.98 686.42 40.33 103.5168 2.1647 2.2289 -5533.5 9967.5 30.962 66.96 278.23 7.421 24.36170 2.3283 19.355 -10702 9936.7 30.634 83.22 657.52 38.80 100.6170 2.3283 2.4294 -5563.7 9966.9 31.374 71.53 276.66 7.604 25.34172 2.5007 18.984 -10541 99
33、37.6 30.721 87.13 627.77 37.27 97.63172 2.5007 2.6500 -5601.7 9966.3 31.829 77.11 274.93 7.801 26.43174 2.6822 18.591 -10374 9938.5 30.843 91.95 597.05 35.74 94.65174 2.6822 2.8944 -5648.8 9965.6 32.337 84.09 273.02 8.018 27.69176 2.8732 18.170 -10200 9939.4 31.011 98.06 565.18 34.20 91.65176 2.8732
34、 3.1671 -5706.6 9964.9 32.912 93.05 270.92 8.258 29.17178 3.0740 17.716 -10017 9940.4 31.24 106.0 531.94 32.65 88.63178 3.0740 3.4744 -5777.2 9964.2 33.57 105.0 268.60 8.528 30.97180 3.2852 17.218 -9824.6 9941.4 31.554 117.0 497.01 31.05 85.60180 3.2852 3.8257 -5863.9 9963.4 34.338 121.5 266.04 8.83
35、7 33.23182 3.5071 16.664 -9618.3 9942.5 31.996 132.9 459.94 29.39 82.60182 3.5071 4.2349 -5971.3 9962.5 35.257 146.0 263.17 9.201 36.23184 3.7405 16.028 -9392.8 9943.6 32.641 158.5 420.00 27.62 79.73184 3.7405 4.7255 -6107.3 9961.5 36.397 186.0 259.89 9.646 40.50186 3.9860 15.267 -9137.8 9944.9 33.6
36、54 206.7 375.88 25.66 77.32186 3.9860 5.3422 -6286.8 9960.2 37.893 262.0 255.97 10.22 47.31188 4.2448 14.270 -8828.0 9946.5 35.503 332.7 324.57 23.34 76.72D3956 124TABLE 1 ContinuedT p H S Cv Cp c K MPa moll-1 Jmol-1 Jmol-1K-1 Jmol-1K-1 Jmol-1K-1 ms-1 Pas mWm-1K-1188 4.2448 6.1945 -6545.2 9958.6 40.
37、109 461.6 250.72 11.06 60.74190 4.5186 12.515 -8343.5 9948.9 41.746 1508. 250.31 19.78 95.22190 4.5186 7.8027 -7047.8 9955.7 45.796 2259. 238.55 12.80 117.1TABLE 1 Thermophysical Properties of Methane Liquid at Liquid-Vapor EquilibriumT p H S Cv Cp c K MPa molL-1 Jmol-1 Jmol-1K-1 Jmol-1K-1 Jmol-1K-1
38、 ms-1 Pas mWm-1K-190.7 0.011705 28.141 84267 67.794 34.775 54.029 1538.5 193.53 211.1892 0.013801 28.033 84338 68.563 34.641 54.102 1526.7 186.13 209.6494 0.017613 27.866 84446 69.728 34.445 54.226 1508.4 175.87 207.2096 0.022233 27.698 84555 70.870 34.258 54.366 1489.8 166.73 204.7198 0.027778 27.5
39、28 84664 71.992 34.08 54.517 1471.0 158.48 202.16100 0.034376 27.357 84773 73.095 33.908 54.681 1452.0 150.97 199.56102 0.04216 27.185 84883 74.178 33.741 54.854 1432.9 144.06 196.92104 0.051275 27.010 84993 75.244 33.579 55.039 1413.6 137.66 194.24106 0.061868 26.835 85103 76.293 33.421 55.234 1394
40、.1 131.71 191.53108 0.074099 26.657 85214 77.326 33.266 55.439 1374.5 126.14 188.79110 0.08813 26.478 85326 78.343 33.115 55.656 1354.7 120.90 186.02112 0.10413 26.297 85438 79.346 32.966 55.885 1334.8 115.97 183.24114 0.12228 26.113 85550 80.335 32.82 56.127 1314.7 111.30 180.44116 0.14275 25.928 8
41、5663 81.310 32.677 56.383 1294.4 106.88 177.62118 0.16574 25.740 85777 82.273 32.537 56.653 1274.0 102.68 174.79120 0.19143 25.551 85891 83.224 32.4 56.941 1253.5 98.680 171.95122 0.22002 25.358 86006 84.164 32.265 57.246 1232.7 94.874 169.11124 0.2517 25.163 86121 85.092 32.133 57.571 1211.9 91.243
42、 166.26126 0.28667 24.966 86237 86.010 32.005 57.917 1190.8 87.777 163.41128 0.32514 24.765 86354 86.919 31.879 58.288 1169.5 84.465 160.55130 0.36732 24.562 86472 87.819 31.757 58.684 1148.1 81.298 157.69132 0.41341 24.355 86591 88.710 31.639 59.110 1126.4 78.267 154.83134 0.46363 24.145 86710 89.5
43、93 31.525 59.567 1104.6 75.363 151.98136 0.51819 23.931 86831 90.468 31.414 60.060 1082.5 72.581 149.12138 0.57730 23.713 86952 91.337 31.308 60.593 1060.2 69.913 146.27140 0.64118 23.491 87075 92.200 31.206 61.169 1037.7 67.354 143.41142 0.71006 23.265 87199 93.057 31.109 61.795 1014.9 64.896 140.5
44、6144 0.78415 23.034 87324 93.910 31.018 62.477 991.81 62.536 137.71146 0.86368 22.798 87450 94.758 30.932 63.221 968.46 60.267 134.87148 0.94887 22.556 87578 95.603 30.852 64.036 944.81 58.085 132.02150 1.0400 22.309 87707 96.444 30.78 64.932 920.85 55.984 129.18152 1.1372 22.055 87839 97.284 30.714
45、 65.922 896.54 53.960 126.33154 1.2408 21.794 87972 98.123 30.656 67.019 871.87 52.008 123.49156 1.3509 21.526 88107 98.961 30.608 68.241 846.82 50.124 120.64158 1.4680 21.249 88244 99.801 30.569 69.611 821.35 48.303 117.79160 1.5921 20.964 88384 100.64 30.541 71.156 795.43 46.541 114.93162 1.7235 2
46、0.668 88526 101.49 30.526 72.912 769.03 44.832 112.06164 1.8626 20.360 88671 102.34 30.525 74.924 742.10 43.172 109.18166 2.0096 20.040 88820 103.19 30.541 77.252 714.59 41.556 106.29168 2.1647 19.706 88972 104.06 30.576 79.979 686.42 39.978 103.38170 2.3283 19.355 89129 104.94 30.634 83.218 657.52
47、38.432 100.46172 2.5007 18.984 89290 105.83 30.721 87.130 627.77 36.911 97.508174 2.6822 18.591 89457 106.74 30.843 91.954 597.05 35.407 94.534176 2.8732 18.170 89631 107.67 31.011 98.060 565.18 33.911 91.535178 3.0740 17.716 89814 108.64 31.24 106.05 531.94 32.411 88.513180 3.2852 17.218 90006 109.
48、65 31.554 116.99 497.01 30.888 85.482182 3.5071 16.664 90213 110.72 31.996 132.94 459.94 29.320 82.478184 3.7405 16.028 90438 111.87 32.641 158.52 420.00 27.665 79.598186 3.9860 15.267 90693 113.16 33.654 206.68 375.88 25.848 77.150188 4.2448 14.270 91003 114.73 35.503 332.70 324.57 23.683 76.437190
49、 4.5186 12.515 91488 117.18 41.746 1508.2 250.31 20.291 94.151D3956 125TABLE 2 Thermophysical Properties of Methane Vapor at Liquid-Vapor EquilibriumT p H S Cv Cp c K MPa molL-1 Jmol-1 Jmol-1K-1 Jmol-1K-1 Jmol-1K-1 ms-1 Pas mWm-1K-190.7 0.011705 0.015641 92999 164.06 25.244 33.851 249.13 3.5980 8.799192 0.013801 0.018199 93039 163.15 25.272 33.916 250.76 3.6414 8.947894 0.017613 0.022770 93101 161.81 25.32 34.025 253.20 3.7087 9.179796 0.022233 0.028198 93163 160.54
