Page 29 - Mechanical Engineers' Handbook (Volume 4)
P. 29

18   Thermophysical Properties of Fluids

           Table 10 Thermodynamic Properties of Saturated Methane a
                     P        v ƒ      v g      h ƒ     h g       s ƒ       s g       c p f    ¯ v s
                                       3
                             3
            T (K)   (bar)   (m /kg)  (m /kg)  (kJ/kg)  (kJ/kg)  (kJ/kg K)  (kJ/kg K)  (kJ/kg K)  (m/s)
            90.68   0.117  2.215. 3 b  3.976  216.4    759.9    4.231     10.225     3.288    1576
            92      0.139  2.226. 3   3.410   220.6    762.4    4.279     10.168     3.294    1564
            96      0.223  2.250. 3   2.203   233.2    769.5    4.419     10.006     3.326    1523
           100      0.345  2.278. 3   1.479   246.3    776.9    4.556      9.862     3.369    1480
           104      0.515  2.307. 3   1.026   259.6    784.0    4.689      9.731     3.415    1437
           108      0.743  2.337. 3   0.732   273.2    791.0    4.818      9.612     3.458    1393
           112      1.044  2.369. 3   0.536   287.0    797.7    4.944      9.504     3.497    1351
           116      1.431  2.403. 3   0.401   301.1    804.2    5.068      9.405     3.534    1308
           120      1.919  2.438. 3   0.306   315.3    810.8    5.187      9.313     3.570    1266
           124      2.523  2.475. 3   0.238   329.7    816.2    5.305      9.228     3.609    1224
           128      3.258  2.515. 3   0.187   344.3    821.6    5.419      9.148     3.654    1181
           132      4.142  2.558. 3   0.150   359.1    826.5    5.531      9.072     3.708    1138
           136      5.191  2.603. 3   0.121   374.2    831.0    5.642      9.001     3.772    1093
           140      6.422  2.652. 3   0.0984  389.5    834.8    5.751      8.931     3.849    1047
           144      7.853  2.704. 3   0.0809  405.2    838.0    5.858      8.864     3.939     999
           148      9.502  2.761. 3   0.0670  421.3    840.6    5.965      8.798     4.044     951
           152     11.387  2.824. 3   0.0558  437.7    842.2    6.072      8.733     4.164     902
           156     13.526  2.893. 3   0.0467  454.7    843.2    6.177      8.667     4.303     852
           160     15.939  2.971. 3   0.0392  472.1    843.0    6.283      8.601     4.470     802
           164     18.647  3.059. 3   0.0326  490.1    841.6    6.390      8.533     4.684     749
           168     21.671  3.160. 3   0.0278  508.9    839.0    6.497      8.462     4.968     695
           172     25.034  3.281. 3   0.0234  528.6    834.6    6.606      8.385     5.390     637
           176     28.761  3.428. 3   0.0196  549.7    827.9    6.720      8.301     6.091     570
           180     32.863  3.619. 3   0.0162  572.9    818.1    6.843      8.205     7.275     500
           184     37.435  3.890. 3   0.0131  599.7    802.9    6.980      8.084     9.831     421
           188     42.471  4.361. 3   0.0101  634.0    776.4    7.154      7.912     19.66     327
           190.56  45.988  6.233. 3   0.0062  704.4    704.4    7.516      7.516

           a                                                                   velocity of sound; ƒ   saturated
            v   specific volume; h   specific enthalpy; s   specific entropy; c p   specific heat at constant pressure; v s
           liquid; g   saturated vapor. Condensed and converted from R. D. Goodwin, N.B.S. Technical Note 653, 1974.
           b The notation 2.215. 3 signifies 2.215   10 .
                                       3
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