Turbine Power Compressor Power W+ Combustion Energy m = W m h3 - h4 C = h- h = h3 - h2 m h-h1 Back Work Ratio BWR = h3-h4 (h3-h4)-(h2-h) Thermal Efficiency n = Compressor Pressure Ratio h3-h P2 CPR = P1 TABLE A-17 Ideal-gas properties of air T h u T h u 50 K kJ/kg P kJ/kg V kJ/kg.K K kJ/kg P kJ/kg U, kJ/kg.K 200 199.97 0.3363 142.56 1707.0 1.29559 580 586.04 14.38 419.55 115.7 2.37348 210 209.97 0.3987 149.69 1512.0 1.34444 590 596.52 15.31 427.15 110.6 2.39140 220 219.97 0.4690 156.82 1346.0 1.39105 600 607.02 16.28 434.78 105.8 2.40902 230 230.02 0.5477 164.00 1205.0 1.43557 610 617.53 17.30 442.42 101.2 2.42644 240 240.02 0.6355 171.13 1084.0 1.47824 620 628.07 18.36 450.09 96.92 2.44356 250 250.05 0.7329 178.28 979.0 1.51917 630 638.63 19.84 457.78 92.84 2.46048 260 260.09 0.8405 185.45 887.8 1.55848 640 649.22 20.64 465.50 88.99 2.47716 270 270.11 0.9590 192.60 808.0 1.59634 650 659.84 21.86 473.25 85.34 2.49364 280 280.13 1.0889 199.75 738.0 1.63279 660 670.47 23.13 481.01 81.89 2.50985 285 285.14 1.1584 203.33 706.1 1.65055 670 681.14 24.46 488.81 78.61 2.52589 290 290.16 1.2311 206.91 676.1 1.66802 680 691.82 25.85 496.62 75.50 2.54175 295 295.17 1.3068 210.49 647.9 1.68515 690 702.52 27.29 504.45 72.56 2.55731 298 298.18 1.3543 212.64 631.9 1.69528 700 713.27 28.80 512.33 69.76 2.57277 300 300.19 1.3860 214.07 621.2 1.70203 710 724.04 30.38 520.23 67.07 2.58810 305 305.22 1.4686 217.67 596.0 1.71865 720 734.82 32.02 528.14 64.53 2.60319 310 310.24 1.5546 221.25 572.3 1.73498 730 745.62 33.72 536.07 62.13 2.61803 315 315.27 1.6442 224.85 549.8 1.75106 740 756.44 35.50 544.02 59.82 2.63280 320 320.29 1.7375 228.42 528.6 1.76690 750 767.29 37.35 551.99 57.63 2.64737 325 325.31 1.8345 232.02 508.4 1.78249 760 778.18 39.27 560.01 55.54 2.66176 330 330.34 1.9352 235.61 489.4 1.79783 780 800.03 43.35 576.12 51.64 2.69013 340 340.42 2.149 242.82 454.1 1.82790 800 821.95 47.75 592.30 48.08 2.71787 350 350.49 2.379 250.02 422.2 1.85708 820 843.98 52.59 608.59 44.84 2.74504 360 360.58 2.626 257.24 393.4 1.88543 840 866.08 57.60 624.95 41.85 2.77170 370 370.67 2,892 264.46 367.2 1.91313 860 888.27 63.09 641.40 39.12 2.79783 380 380.77 3.176 271.69 343.4 1.94001 880 910.56 68.98 657.95 36.61 2.82344 390 390.88 3.481 278.93. 321.5 1.96633 900 932.93 75.29 674.58 34.31 2.84856 400 400.98 3.806 286.16 301.6 1.99194 920 955.38 82.05 691.28 32.18 2.87324 410 411.12 4.153 293.43 283.3 2.01699 940 977.92 89.28 708.08 30.22 2.89748 420 421.26 4.522 300.69 266.6 2.04142 960 1000.55 97.00 725.02 28.40 2.92128 430 431.43 4.915 307.99 251.1 2.06533 980 1023.25 105.2 741.98 26.73 2.94468 440 441.61 5.332 315.30 236.8 2.08870 1000 450 451.80 5.775 322.62 223.6 2.11161 1020 1046.04 114.0 1068.89 123.4 758.94 25.17 2.96770 776.10 23.72 2.99034 460 462.02 6.245 329.97 211.4 2.13407 1040 1091.85 133.3 793.36 23.29 3.01260 470 472.24 6.742 337.32 200.1 2.15604 1060 1114.86 143.9 810.62 21.14 3.03449 480 482.49 7.268 344.70 189.5 2.17760 1080 1137.89 155.2 827.88 19.98 3.05608 490 492.74 7.824 352.08 179.7 2.19876 1100 1161.07 167.1 845.33 18.896 3.07732 500 503.02 8.411 359.49 170.6 2.21952 1120 1184.28 179.7 862.79 17.886 3.09825 510 513.32 9.031 366.92 162.1 2.23993 1140 1207.57 193.1 880.35 16.946 3.11883 520 523.63 9.684 374.36 154.1 2.25997 1160 1230.92 207.2 897.91 16.064 3.13916 530 533.98 10.37 381.84 146.7 2.27967 1180 1254.34 222.2 915.57 15.241 3.15916 540 544.35 11.10 389.34 560 11.86 $35.19 12.65 396186 139.7 2.29906 133. 1200 1277.79 238.0 933.33 14.470 3.17888 Cher 1220 .31809 33585 1301.31 254.7 951.09 13.747 3.19834 1240 1324.93 272.3 968.95 13.069 3.21751 570 575.59 13.50 411.97 121.2 2.35531