THERMODYNAMICS

The Babcock & Wilcox Company

Note: The following steam tables and Fig. 1 have been abstracted from ASME International Steam Tables for Industrial Use (copyright 2000 by The American Society of Mechanical Engineers), based on the 1APWS industrial formulation 1997 for the

Thermodynamic Properties of Water and Steam (IAPWS-1F97).

Table 1 Properties of Saturated Steam and Saturated Water (Temperature)'

Temp Press. Specific Volume, fellb Enthalpy," Btu/lb Entropy, Btu/lb F

TempWater Evap Steam Water Evap Steam Water Evap Steam F psia

u{ u{g ug H{ H{g ». s{ sr.I{ Sg F 32 0.08865 0.01602 3302 3302 -0.02 1075.2 1075.2 -0.00004 2.1869 2.1868 32

35 0.09998 0.01602 2946 2946 3.00 1073.5 1076.5 0.0061 2.1701 2.1762 35 40 0.12173 0.01602 2443 2443 8.03 1070.7 1078.7 0.0162 2.1427 2.1590 40 45 0.14757 0.01602 2035.6 2035.6 13.05 1067.8 1080.9 0.0262 2.1159 2.1421 45 50 0.17813 0.01602 1702.9 1702.9 18.07 1065.0 1083.1 0.0361 2.0896 2.1257 50 60 0.2564 0.01603 1206.0 1206.1 28.08 1059.4 1087.4 0.0555 20385 20941 60

70 0.3633 0.01605 867.2 867.2 3808 1053.7 1091.8 0.0746 1.9894 2.0640 70 80 0.5074 0.01607 632.4 632.4 4807 1048.0 1096.1 0.0933 1.9420 20353 80 90 0.6990 0.01610 467.4 467.4 58.05 1042.4 1100.4 0.1116 1.8964 20080 90

100 0.9504 0.01613 349.9 349.9 68.04 1036.7 1104.7 0.1296 1.8523 1.9819 100 110 1.2766 0.01617 265.0 265.0 78.02 1031.0 1109.0 0.1473 1.8098 1.9570 110

120 1.6949 0.01620 202.95 202.96 88.00 1025.2 1113.2 0.1647 1.7686 1.9333 120 130 2.2258 0.01625 157.09 157.10 97.99 1019.4 1117.4 0.1817 1.7288 1.9106 130 140 2.8929 0.01629 122.81 122.82 107.98 1013.6 1121.6 0.1985 1.6903 1.8888 140 150 3.723 0.01634 96.92 96.93 117.97 1007.8 1125.7 0.2151 1.6530 1.8680 150 160 4.747 0.01639 77.17 77.19 127.98 1001.9 1129.8 0.2313 1.6168 1.8481 160 170 6.000 0.01645 61.97 61.98 137.99 995.9 1133.9 0.2474 1.5816 1.8290 170 180 7.520 0.01651 50.15 50.17 148.01 989.9 1137.9 0.2631 1.5475 1.8106 180 190 9.350 0.01657 40.90 40.92 158.05 983.8 1141.8 0.2787 1.5143 1.7930 190 200 11.538 0.01663 33.59 33.61 168.10 977.6 1145.7 0.2940 1.4820 1.7760 200

212 14.709 0.01671 26.76 26.78 180.18 970.1 1150.3 0.3122 1.4443 1.7565 212 220 17.201 0.01677 23.12 23.13 188.25 965.0 1153.3 0.3241 1.4198 1.7440 220 230 20.795 0.01684 19.356 19.373 198.35 958.6 1157.0 0.3388 1.3899 1.7288 230 240 24.985 0.01692 16.299 16.316 208.47 952.1 1160.5 0.3534 1.3607 1.7141 240 250 29.843 0.01700 13.799 13.816 218.62 945.4 1164.0 0.3678 1.3322 1.7000 250

260 35.445 0.01708 11.743 11.760 228.79 938.6 1167.4 0.3820 1.3043 1.6862 260 270 41.874 0.01717 10.042 10.059 238.99 931.7 1170.7 0.3960 1.2769 1.6730 270 280 49.218 0.01726 8.627 8.644 249.21 924.7 1173.9 0.4099 1.2502 1.6601 280 290 57.567 0.01735 7.444 7.461 259.5 917.5 1177.0 0.4236 1.2239 1.6476 290 300 67.021 0.01745 6.449 6.467 269.8 910.2 1180.0 0.4372 1.1982 1.6354 300

310 77.68 0.01755 5.609 5.627 280.1 902.7 1182.8 0.4507 1.1728 1.6235 310 320 89.65 0.01765 4.897 4.915 290.4 895.0 1185.5 0.4640 1.1480 1.6120 320 340 118.00 0.01787 3.771 3.789 311.3 879.2 1190.5 0.4903 10994 1.5897 340 360 153.00 0.01811 2.940 2.958 332.3 862.5 1194.8 0.5162 1.0522 1.5684 360 380 195.71 0.01836 2.318 2.336 353.6 844.9 1198.5 0.5416 1.0062 1.5478 380

400 247.22 0.01864 1.8454 1.8640 375.1 826.4 1201.5 0.5667 0.9613 1.5280 400 420 308.71 0.01894 1.4818 1.5007 396.9 806.7 1203.6 0.5915 0.9171 1.5086 420 440 381.44 0.01926 1.1986 1.2179 419.0 785.9 1204.9 0.6161 0.8735 1.4896 440 460 466.7 0.0196 0.9755 0.9952 441.5 763.7 1205.2 0.6405 0.8304 1.4709 460 480 565.9 0.0200 0.7980 0.8180 464.4 739.9 1204.4 0.6648 0.7874 1.4522 480

500 680.5 0.0204 0.6551 0.6756 487.9 714.5 1202.3 0.6890 0.7445 1.4335 500 520 812.1 0.0209 0.5392 0.5601 511.9 687.0 1198.9 0.7133 0.7013 1.4145 520 540 962.2 0.0215 0.4441 0.4656 536.7 657.3 1194.0 0.7377 0.6575 1.3952 540 560 1132.7 0.0221 0.3654 0.3875 562.3 624.9 1187.2 0.7624 0.6128 1.3752 560 580 1325.4 0.0228 0.2995 0.3223 589.0 589.3 1178.2 0.7875 0.5668 1.3543 580

600 1542.5 0.0236 0.2438 0.2675 616.9 549.7 1166.6 0.8133 0.5187 1.3320 600 620 1786.1 0.0246 0.1961 0.2207 646.6 505.0 1151.6 0.8400 0.4677 1.3077 620 640 2059.2 0.0259 0.1543 0.1802 678.7 453.3 1132.0 0.8683 0.4122 1.2804 640 660 2364.8 0.0277 0.1167 0.1444 714.5 390.9 1105.3 0.8991 0.3491 1.2482 660 680 2707.3 0.0303 0.0809 0.1112 757.3 309.3 1066.6 0.9354 0.2714 1.2068 680

700 3092.9 0.0368 0.0378 0.0747 823.6 167.0 990.6 0.9910 0.1440 1.1350 700 705.1028 3200.1 0.0497 0 0.04975 897.5 0 897.5 1.0538 0 1.0538 705.1028

1. SI steam tables are provided in Appendix 1. 2. In the balance of Steam, enthalpy is denoted by H in place of h to avoid confusion with heat transfer coefficient.

2-2 Steam 41 / Thermodynamics of Steam

The Babcock & Wilcox Company

Table 2 Properties of Saturated Steam and Saturated Water (Pressure)'

Internal Press. Temp Volume, fe/lb Enthalpy! Btu/lb Entropy, Btu/lb F Energy, Btuflb Press. psia F Water Evap Steam Water Evap Steam Water Evap Steam Water Steam psi a

vr vre ve tt, Hre He sr sre se uf ue 0.0886 31.986 0.01602 3303.8 3303.8 -003 1075.2 1075.2 0 2.1869 2.1869 0 1021.0 0.0886

0.1 35.005 0.01602 2945.0 2945.0 3.01 1073.5 1076.5 0.0061 2.1701 2.1762 3.01 1022.0 0.1 0.15 45.429 0.01602 2004.3 2004.3 13.48 1067.6 1081.1 0.0271 2.1136 2.1407 13.48 1025.4 0.15 0.2 53.132 0.01603 1525.9 1525.9 21.20 1063.2 1084.4 0.0422 2.0734 2.1156 21.20 1028.0 0.2 0.3 64.452 0.01604 1039.4 1039.4 32.53 1056.8 1089.4 0.0641 2.0164 2.0805 32.53 1031.7 0.3 0.4 72.834 0.01606 791.8 791.9 40.91 1052.1 1093.0 0.0799 1.9758 2.0557 40.91 1034.4 0.4 0.5 79.549 0.01607 641.3 641.3 47.62 1048.3 1095.9 0.0925 1.9441 20366 47.62 1036.6 0.5 0.6 85.180 0.01609 539.9 539.9 53.24 1045.1 1098.3 0.1028 1.9182 2.0210 53.24 1038.4 0.6 0.7 90.05 0.01610 466.80 466.81 58.10 1042.3 1100.4 0.1117 1.8962 2.0079 58.10 1040.0 0.7 0.8 94.34 0.01611 411.56 411.57 62.39 1039.9 1102.3 0.1195 1.8770 1.9965 62.39 1041.4 0.8 0.9 98.20 0.01613 368.30 368.32 66.24 1037.7 1103.9 0.1264 1.8601 1.9865 66.23 1042.6 0.9

1 101.69 0.01614 333.49 333.51 69.73 1035.7 1105.4 0.1326 1.8450 1.9776 69.73 1043.7 1 2 126.03 0.01623 173.70 173.72 94.02 1021.7 1115.8 0.1750 1.7445 1.9195 94.01 1051.5 2 3 141.42 0.01630 118.69 118.70 109.39 1012.8 1122.2 0.2009 1.6849 1.8858 109.38 1056.3 3 4 152.91 0.01636 90.61 90.63 120.89 1006.1 1126.9 0.2198 1.6423 1.8621 120.87 1059.9 4 5 162.18 0.01641 73.507 73.52 130.16 1000.6 1130.7 0.2349 1.6090 1.8438 130.15 1062.7 5 6 170.00 0.01645 61.963 61.98 137.99 995.9 1133.9 0.2474 1.5816 1.8290 137.97 1065.1 6 7 176.79 0.01649 53.632 53.65 144.79 991.8 1136.6 0.2581 1.5583 1.8164 144.77 1067.1 7 8 182.81 0.01652 47.328 47.34 150.83 988.2 1139.0 0.2675 1.5381 1.8056 150.80 1068.9 8 9 188.22 0.01656 42.387 42.40 156.27 984.9 1141.1 0.2760 1.5201 1.7961 156.24 1070.5 9 10 193.16 0.01659 38.406 38.42 161.22 981.8 1143.1 0.2836 1.5040 1.7875 161.19 1072.0 10

14.696 211.95 0.01671 26.787 26.80 180.13 970.1 1150.3 0.3121 1.4445 1.7566 180.09 1077.4 14.696

15 212.99 0.01672 26.278 26.30 181.18 969.5 1150.7 0.3137 1.4413 1.7549 181.13 1077.7 15 20 227.92 0.01683 20.075 20.09 196.25 959.9 1156.2 0.3358 1.3961 1.7319 196.18 1081.8 20 30 250.30 0.01700 13.7312 13.748 218.9 945.2 1164.1 0.3682 1.3313 1.6995 218.8 1087.8 30 40 267.22 0.01715 10.4832 10.500 236.2 933.7 1169.8 0.3921 1.2845 1.6766 236.0 1092.1 40 50 280.99 0.01727 8.4998 8.517 250.2 924.0 1174.2 0.4113 1.2475 1.6588 250.1 1095.4 50 60 292.69 0.01738 7.1588 7.176 262.2 915.6 1177.8 0.4273 1.2169 1.6443 262.0 1098.1 60 70 302.92 0.01748 6.1896 6.207 272.8 908.0 1180.8 0.4412 1.1907 1.6319 272.5 1100.4 70 80 312.03 0.01757 5.4554 5.473 282.2 901.2 1183.3 0.4534 1.1678 1.6212 281.9 1102.3 80 90 320.27 0.01766 4.8792 4.897 290.7 894.8 1185.6 0.4644 1.1473 1.6117 290.4 1104.0 90 100 327.82 0.01774 4.4146 4.432 298.6 888.9 1187.5 0.4744 1.1288 1.6032 298.2 1105.5 100

120 341.26 0.01789 3.7107 3.729 312.6 878.1 1190.7 0.4920 10964 1.5883 312.2 1108.0 120 140 353.04 0.01802 3.2019 3.220 325.0 868.4 1193.4 0.5072 10685 1.5757 324.5 1110.0 140 160 363.55 0.01815 2.8163 2.834 336.1 859.4 1195.5 0.5207 10440 1.5647 335.6 1111.6 160 180 373.08 0.01827 2.5137 2.532 346.2 851.1 1197.3 0.5328 1.0220 1.5549 345.6 1113.0 180 200 381.81 0.01839 2.2696 2.288 355.5 843.3 1198.8 0.5439 1.0021 1.5460 354.9 1114.1 200

250 400.98 0.01865 1.8252 1.8439 376.2 825.4 1201.6 0.5679 0.9591 1.5270 375.3 1116.3 250 300 417.37 0.01890 1.5245 1.5434 394.0 809.4 1203.4 0.5883 0.9229 1.5111 393.0 1117.7 300 350 431.75 0.01913 1.3071 1.3262 409.8 794.6 1204.5 0.6060 0.8914 1.4974 408.6 1118.6 350 400 444.63 0.0193 1.14225 1.1616 424.2 780.9 1205.0 0.6217 0.8635 1.4853 422.7 1119.1 400 450 456.32 0.0196 1.01283 1.0324 437.3 767.9 1205.2 0.6360 0.8383 1.4743 435.7 1119.2 450

500 467.05 0.0198 0.90840 0.9282 449.5 755.5 1205.0 0.6490 0.8152 1.4643 447.7 1119.1 500 550 476.98 0.0199 0.82229 0.8422 460.9 743.6 1204.6 0.6611 0.7939 1.4550 458.9 1118.8 550 600 486.25 0.0201 0.75002 0.7702 471.7 732.2 1203.9 0.6723 0.7740 1.4464 469.5 1118.4 600 700 503.14 0.0205 0.63535 0.6559 491.6 710.3 1201.9 0.6928 0.7377 1.4305 489.0 1117.0 700 800 518.27 0.0209 0.54830 0.5692 509.8 689.5 1199.3 0.7112 0.7050 1.4162 506.7 1115.0 800

900 53202 0.0212 0.47983 0.5011 526.7 669.4 1196.2 0.7279 0.6751 1.4030 523.2 1112.7 900 1000 544.65 0.0216 0.42446 0.4461 542.6 650.0 1192.6 0.7434 0.6472 1.3906 538.6 1110.0 1000 1100 556.35 0.0220 0.37869 0.4006 557.6 631.0 1188.6 0.7578 0.6211 1.3789 553.1 1107.0 1100 1200 567.26 0.0223 0.34014 0.3625 571.8 612.4 1184.2 0.7714 0.5963 1.3677 566.9 1103.7 1200 1300 577.50 0.0227 0.30718 0.3299 585.5 593.9 1179.5 0.7843 0.5727 1.3570 580.1 1100.1 1300 1400 587.14 0.0231 0.27861 0.3017 598.8 575.7 1174.4 0.7966 0.5499 1.3465 592.8 1096.3 1400 1500 596.27 0.0235 0.25357 0.2770 611.6 557.4 1169.0 0.8084 0.5279 1.3363 605.1 1092.1 1500 2000 635.85 0.0256 0.16255 0.1882 671.8 464.7 1136.5 0.8622 0.4242 1.2864 662.3 1066.9 2000 2500 668.17 0.0286 0.10208 0.1307 730.8 360.7 1091.5 0.9130 0.3199 1.2329 717.6 1031.1 2500 3000 695.41 0.0344 0.05015 0.0845 802.9 213.6 1016.5 0.9736 0.1849 1.1585 783.8 969.5 3000 3200.11 705.1028 0.0497 0 0.0498 897.5 0 897.5 1.0538 0 1.0538 868.0 868.0 3200.11

1. See Note 1, Table 1. 2. See Note 2, Table 1.

Steam 41 / Thermodynamics of Steam 2-3

The Babcock & Wilcox Company

Table 3 Properties of Superheated Steam and Compressed Water (Temperature and Pressure)'

Press., psia Temperature, F (sat. temp) 100 200 300 400 500 600 700 800 900 1000 noo 1200 1300 1400 1500

v 0.0161 392.5 452.3 511.9 571.5 631.1 690.7 1 H 68.00 1150.2 1195.7 1241.8 1288.6 1336.1 1384.5

(101.74) s 0.1295 2.0509 2.1152 2.1722 2.2237 2.2708 2.3144

v 0.0161 78.14 90.24 102.24 114.21 126.15 138.08 150.01 161.94 173.86 185.78 197.70 209.62 221.53 233.45 5 H 68.01 1148.6 1194.8 1241.3 1288.2 1335.9 1384.3 1433.6 1483.7 1534.7 1586.7 1639.6 1693.3 1748.0 1803.5

(162.24) s 0.1295 1.8716 1.9369 1.9943 2.0460 2.0932 2.1369 2.1776 2.2159 2.2521 2.2866 2.3194 2.3509 2.3811 2.4101

v 0.0161 38.84 44.98 51.03 57.04 63.03 69.00 74.98 80.94 86.91 92.87 98.84 104.80 110.76 116.72 10 H 68.02 1146.6 1193.7 1240.6 1287.8 1335.5 1384.0 1433.4 1483.5 1534.6 1586.6 1639.5 1693.3 1747.9 1803.4

(193.21) s 0.1295 1.7928 1.8593 1.9173 1.9692 2.0166 2.0603 2.1011 2.1394 2.1757 2.2101 2.2430 2.2744 2.3046 2.3337

v 0.0161 0.0166 29.899 33.963 37.985 41.986 45.978 49.964 53.946 57.926 61.905 65.882 69.858 73.833 77.807 15 H 68.04 168.09 1192.5 1239.9 1287.3 1335.2 1383.8 1433.2 1483.4 1534.5 1586.5 1639.4 1693.2 1747.8 1803.4

(213.03) s 0.1295 0.2940 1.8134 1.8720 1.9242 1.9717 2.0155 2.0563 2.0946 2.1309 2.1653 2.1982 2.2297 2.2599 2.2890

v 0.0161 0.0166 22.356 25.428 28.457 31.466 34.465 37.458 40.447 43.435 46.420 49.405 52.388 55.370 58.352 20 H 68.05 168.11 1191.4 1239.2 1286.9 1334.9 1383.5 1432.9 1483.2 1534.3 1586.3 1639.3 1693.1 1747.8 1803.3

(227.96) s 0.1295 0.2940 1.7805 1.8397 1.8921 1.9397 1.9836 2.0244 2.0628 2.0991 2.1336 2.1665 2.1979 2.2282 2.2572

v 0.0161 0.0166 11.036 12.624 14.165 15.685 17.195 18.699 20.199 21.697 23.194 24.689 26.183 27.676 29.168 40 H 68.10 168.15 1186.6 1236.4 1285.0 1333.6 1382.5 1432.1 1482.5 1533.7 1585.8 1638.8 1992.7 1747.5 1803.0

(267.25) s 0.1295 0.2940 1.6992 1.7608 1.8143 1.8624 1.9065 1.9476 1.9860 2.0224 2.0569 2.0899 2.1224 2.1516 2.1807

v 0.0161 0.0166 7.257 8.354 9.400 10.425 11.438 12.446 13.450 14.452 15.452 16.450 17.448 18.445 19.441 60 H 68.15 168.20 1181.6 1233.5 1283.2 1332.3 1381.5 1431.3 1481.8 1533.2 1585.3 1638.4 1692.4 1747.1 1802.8

(292.71 ) s 0.1295 0.2939 1.6492 1.7134 1.7681 1.8168 1.8612 1.9024 1.9410 1.9774 2.0120 2.0450 2.0765 2.1068 2.1359

v 0.0161 0.0166 0.0175 6.218 7.018 7.794 8.560 9.319 10.075 10.829 11.581 12.331 13.081 13.829 14.577 80 H 68.21 168.24 269.74 1230.5 1281.3 1330.9 1380.5 1430.5 1481.1 1532.6 1584.9 1638.0 1692.0 1746.8 1802.5

(312.04) s 0.1295 0.2939 0.4371 1.6790 1.7349 1.7842 1.8289 1.8702 1.9089 1.9454 1.9800 2.0131 2.0446 2.0750 2.1041

v 0.0161 0.0166 0.0175 4.935 5.588 6.216 6.833 7.443 8.050 8.655 9.258 9.860 10.460 11.060 11.659 100 H 68.26 168.29 269.77 1227.4 1279.3 1329.6 1379.5 1429.7 1480.4 1532.0 1584.4 1637.6 1691.6 1746.5 1802.2

(327.82) s 0.1295 0.2939 0.4371 1.6516 1.7088 1.7586 1.8036 1.8451 1.8839 1.9205 1.9552 1.9883 2.0199 2.0502 2.0794

v 0.0161 0.0166 0.0175 4.0786 4.6341 5.1637 5.6831 6.1928 6.7006 7.2060 7.7096 8.2119 8.7130 9.2134 9.7130 120 H 68.31 168.33 269.81 1224.1 1277.4 1328.1 1378.4 1428.8 1479.8 1531.4 1583.9 1637.1 1691.3 1746.2 1802.0

(341.27) s 0.1295 0.2939 0.4371 1.6286 1.6872 1.7376 1.7829 1.8246 1.8635 1.9001 1.9349 1.9680 1.9996 2.0300 2.0592

v 0.0161 0.0166 0.0175 3.4661 3.9526 4.4119 4.8585 5.2995 5.7364 6.1709 6.6036 7.0349 7.4652 7.8946 8.3233 140 H 68.37 168.38 269.85 1220.8 1275.3 1326.8 1377.4 1428.0 1479.1 1530.8 1583.4 1636.7 1690.9 1745.9 1801.7

(353.04) s 0.1295 0.2939 0.4370 1.6085 1.6686 1.7196 1.7652 1.8071 1.8461 1.8828 1.9176 1.9508 1.9825 2.0129 2.0421

v 0.0161 0.0166 0.0175 3.0060 3.4413 3.8480 4.2420 4.6295 5.0132 5.3945 5.7741 6.1522 6.5293 6.9055 7.2811 160 H 68.42 168.42 269.89 1217.4 1273.3 1325.4 1376.4 1427.2 1478.4 1530.3 1582.9 1636.3 1690.5 1745.6 1801.4

(363.55) s 0.1294 0.2938 0.4370 1.5906 1.6522 1.7039 1.7499 1.7919 1.8310 1.8678 1.9027 1.9359 1.9676 1.9980 2.0273

v 0.0161 0.0166 0.0174 2.6474 3.0433 3.4093 3.7621 4.1084 4.4505 4.7907 5.1289 5.4657 5.8014 6.1363 6.4704 180 H 68.47 168.47 269.92 1213.8 1271.2 1324.0 1375.3 1426.3 1477.7 1529.7 1582.4 1635.9 1690.2 1745.3 1801.2

(373.08) s 0.1294 0.2938 0.4370 1.5743 1.6376 1.6900 1.7362 1.7784 1.8176 1.8545 1.8894 1.9227 1.9545 1.9849 2.0142

v 0.0161 0.0166 0.0174 2.3598 2.7247 3.0583 3.3783 3.6915 4.0008 4.3077 4.6128 4.9165 5.2191 5.5209 5.8219 200 H 68.52 168.51 269.96 1210.1 1269.0 1322.6 1374.3 1425.5 1477.0 1529.1 1581.9 1635.4 1689.8 1745.0 1800.9

(381.80) s 0.1294 0.2938 0.4369 1.5593 1.6242 1.6776 1.7239 1.7663 1.8057 1.8426 1.8776 1.9109 1.9427 1.9732 2.0025

v 0.0161 0.0166 0.0174 0.0186 2.1504 2.4662 2.6872 2.9410 3.1909 3.4382 3.6837 3.9278 4.1709 4.4131 4.6546 250 H 68.66 168.63 270.05 375.10 1263.5 1319.0 1371.6 1423.4 1475.3 1527.6 1580.6 1634.4 1688.9 1744.2 1800.2

(400.97) s 0.1294 0.2937 0.4368 0.5667 1.5951 1.6502 1.6976 1.7405 1.7801 1.8173 1.8524 1.8858 1.9177 1.9482 1.9776

v 0.0161 0.0166 0.0174 0.0186 1.7665 2.0044 2.2263 2.4407 2.6509 2.8585 3.0643 3.2688 3.4721 3.6746 3.8764 300 H 68.79 168.74 270.14 375.15 1257.7 1315.2 1368.9 1421.3 1473.6 1526.2 1579.4 1633.3 1688.0 1743.4 1799.6

(417.35) s 0.1294 0.2937 0.4307 0.5665 1.5703 1.6274 1.6758 1.7192 1.7591 1.7964 1.8317 1.8652 1.8972 1.9278 1.9572

v 00161 0.0166 0.0174 0.0186 1.4913 1.7028 1.8970 2.0832 2.2652 2.4445 2.6219 2.7980 2.9730 3.1471 3.3205 350 H 68.92 168.85 270.24 375.21 1251.5 1311.4 1366.2 1419.2 1471.8 1524.7 1578.2 1632.3 1687.1 1742.6 1798.9

(431.73) s 0.1293 0.2936 0.4367 0.5664 1.5483 1.6077 1.6571 1.7009 1.7411 1.7787 1.8141 1.8477 1.8798 1.9105 1.9400

v 0.0161 0.0166 0.0174 0.0162 1.2841 1.4763 1.6499 1.8151 1.9759 2.1339 2.2901 2.4450 2.5987 2.7515 2.9037 400 H 69.05 168.97 270.33 375.27 1245.1 1307.4 1363.4 1417.0 1470.1 1523.3 1576.9 1631.2 1686.2 1741.9 1798.2

(444.60) s 0.1293 0.2935 0.4366 0.5663 1.5282 1.5901 1.6406 1.6850 1.7255 1.7632 1.7988 1.8325 1.8647 1.8955 1.9250

v 0.0161 0.0166 0.0174 0.0186 0.9919 1.1584 1.3037 1.4397 1.5708 1.6992 1.8256 1.9507 2.0746 2.1977 2.3200 500 H 69.32 169.19 270.51 375.38 1231.2 1299.1 1357.7 1412.7 1466.6 1520.3 1574.4 1629.1 1684.4 1740.3 1796.9

(467.01) s 0.1292 0.2934 .04364 0.5660 1.4921 1.5595 1.6123 1.6578 1.6690 1.7371 1.7730 1.8069 1.8393 1.8702 1.8998

1. See Notes 1 and 2,Table 1.

2-4 Steam 41 I Thermodynamics of Steam

The Babcock & Wilcox Company

Table 3 Properties of Superheated Steam and Compressed Water (Temperature and Pressure)'

Press., psia Temperature, F (sat. temp) 100 200 300 400 500 600 700 800 900 1000 1100 1200 1300 1400 1500

" 0.0161 0.0166 0.0174 0.0186 1 0.7944 0.9456 1.0726 1.1892 1.3008 14093 1.5160 1.6211 1.7252 1.8284 1.9309600 H 69.58 169.42 270.70 375.49 1215.9 1290.3 1351.8 1408.3 1463.0 1517.4 1571.9 1627.0 1682.6 1738.8 1795.6 (486.20) s 0.1292 0.2933 04362 0.5657 1.4590 1.5329 1.5844 1.6351 1.6769 1.7155 1.7517 1.7859 1.8184 1.8494 1.8792

v 0.0161 0.0166 0.0174 0.0186 0.0204 0.7928 0.9072 1.0102 1.1078 1.2023 1.2948 1.3858 14757 1.5647 1.6530 700 H 69.84 169.65 270.89 375.61 487.93 1281.0 1345.6 1403.7 14594 15144 1569.4 1624.8 1680.7 1737.2 1794.3

(503.08) s 0.1291 0.2932 04360 0.5655 0.6889 1.5090 1.5673 1.6154 1.6580 1.6970 1.7335 1.7679 1.8006 1.8318 1.8617

v 0.0161 0.0166 0.0174 0.0186 0.0204 0.6774 0.7828 0.8759 0.9631 1.0470 1.1289 1.2093 1.2885 1.3669 14446 800 H 70.11 169.88 271.07 375.73 487.88 1271.1 1339.2 1399.1 1455.8 1511.4 1566.9 1622.7 1678.9 1735.0 1792.9

(518.21) s 0.1290 0.2930 04358 0.5652 0.6885 1.4869 1.5484 1.5980 1.6413 1.6807 1.7175 1.7522 1.7851 1.8164 1.8464

v 0.0161 0.0166 0.0174 0.0186 0.0204 0.5869 0.6858 0.7713 0.8504 0.9262 0.9998 1.0720 1.1430 1.2131 1.2825 900 H 70.37 170.10 271.26 375.84 487.83 1260.6 1332.7 1394.4 1452.2 1508.5 1564.4 1620.6 1677.1 1734.1 1791.6

(531.95) s 0.1290 0.2929 04357 0.5649 0.6881 1.4659 1.5311 1.5822 1.6263 1.6662 1.7033 1.7382 1.7713 1.8028 1.8329

v 0.0161 0.0166 0.0174 0.0186 0.0204 0.5137 0.6080 0.6875 0.7603 0.8295 0.8966 0.9622 1.0266 1.0901 1.1529 1000 H 70.63 170.33 271.44 375.96 487.79 1249.3 1325.9 1389.6 1448.5 1504.4 1561.9 1618.4 1675.3 1732.5 1790.3

(544.58) s 0.1289 0.2928 04355 0.5647 0.6876 14457 1.5149 1.5677 1.6126 1.6530 1.6905 1.7256 1.7589 1.7905 1.8207

v 0.0161 0.0166 0.0174 0.0185 0.0203 0.4531 0.5440 0.6188 0.6865 0.7505 0.8121 0.8723 0.9313 0.9894 1.0468 1100 H 70.90 170.56 271.63 376.08 487.75 1237.3 1318.8 1384.7 1444.7 1502.4 1559.4 1616.3 1673.5 1731.0 1789.0

(556.28) s 0.1289 0.2927 04353 0.5644 0.6872 1.4259 1.4996 1.5542 1.6000 1.6410 1.6787 1.7141 1.7475 1.7793 1.8097

v 0.0161 0.0166 0.0174 0.0185 0.0203 0.4016 0.4905 0.5615 0.6250 0.6845 0.7418 0.7974 0.8519 0.9055 0.9584 1200 H 71.16 170.78 271.82 376.20 487.72 1224.2 1311.5 1379.7 1440.9 1499.4 1556.9 1614.2 1671.6 1729.4 1787.6

(567.19) s 0.1288 0.2926 04351 0.5642 0.6868 14061 1.4851 1.5415 1.5883 1.6298 1.6679 1.7035 1.7371 1.7691 1.7996

v 0.0161 0.0166 0.0174 0.0185 0.0203 0.3176 04059 0.4712 0.5282 0.5809 0.6311 0.6798 0.7272 0.7737 0.8195 1400 H 71.68 171.24 272.19 37644 487.65 1194.1 1296.1 1369.3 1433.2 1493.2 1551.8 1609.9 1668.0 1726.3 1785.0

(587.07) s 0.1287 0.2923 04348 0.5636 0.6859 1.3652 14575 1.5182 1.5670 1.6096 1.6484 1.6845 1.7185 1.7508 1.7815

v 0.0161 0.0166 0.0173 0.0185 0.0202 0.0236 0.3415 0.4032 04555 0.5031 0.5482 0.5915 0.6336 0.6748 0.7153 1600 H 72.21 171.69 272.57 376.69 487.60 616.77 1279.4 1358.5 1425.2 1486.9 1546.6 1605.6 1664.3 1723.2 1782.3

(604.87) s 0.1286 0.2921 0.4344 0.5631 0.6851 0.8129 1.4312 1.4968 1.5478 1.5916 1.6312 1.6678 1.7022 1.7344 1.7657

v 0.0160 0.0165 0.0173 0.0185 0.0202 0.0235 0.2906 0.3500 0.3988 0.4426 0.4836 0.5229 0.5609 0.5980 0.6343 1800 H 72.73 172.15 272.95 376.93 487.56 615.58 1261.1 1347.2 1417.1 1480.6 1541.1 1601.2 1660.7 1720.1 1779.7

(621.02) s 0.1284 0.2918 0.4341 0.5626 0.6843 0.8109 1.4054 1.4768 1.5302 1.5753 1.6156 1.6528 1.6876 1.7204 1.7516

v 0.0160 0.0165 0.0173 0.0184 0.0201 0.0233 0.2488 0.3072 0.3534 0.3942 0.4320 0.4680 0.5027 0.5365 0.5695 2000 H 73.26 172.60 273.32 377.19 487.53 614.48 1240.9 1353.4 1408.7 1474.1 1536.2 1596.9 1657.0 1717.0 1777.1

(635.80) s 0.1283 0.2916 0.4337 0.5621 0.6834 0.8091 1.3794 1.4578 1.5138 1.5603 1.6014 1.6391 1.6743 1.7075 1.7389

v 0.0160 0.0165 0.0173 0.0184 0.0200 0.0230 0.1681 0.2293 0.2712 0.3068 0.3390 0.3692 0.3980 0.4259 04529 2500 H 74.57 173.74 274.27 377.82 487.50 612.08 1176.7 1303.4 1386.7 1457.5 1522.9 1585.9 1647.8 1709.2 1770.4

(668.11) s 0.1280 0.2910 0.4329 0.5609 0.6815 0.8048 1.3076 1.4129 1.4766 1.5269 1.5703 1.6094 1.6456 1.6796 1.7116

v 0.0160 0.0165 0.0172 0.0183 0.0200 0.0228 0.0982 0.1759 0.2161 0.2484 0.2770 0.3033 0.3282 0.3522 0.3753 3000 H 75.88 174.88 275.22 378.47 487.52 610.08 1060.5 1267.0 1363.2 1440.2 1509.4 1574.8 1638.5 1701.4 1761.8

(695.33) s 0.1277 0.2904 0.4320 0.5597 0.6796 0.8009 1.1966 1.3692 1.4429 1.4976 1.5434 1.5841 1.6214 1.6561 1.6888

v 0.0160 0.0165 0.0172 0.0183 0.0199 0.0227 0.

0335 1

0.1588 0.1987 0.2301 0.2576 0.2327 0.3065 0.3291 0.3510 3200 H 76.4 175.3 275.6 378.7 487.5 609.4 800.8 1250.9 1353.4 1433.1 1503.8 1570.3 1634.8 1698.3 1761.2

(705.08) s 0.1276 0.2902 0.4317 0.5592 0.6788 0.7994 0.9708 1.3515 1.4300 1.4866 1.5335 1.5749 1.6126 1.6477 1.6806

v 0.0160 0.0164 0.0172 0.0183 0.0199 0.0225 0.0307 0.1364 0.1764 0.2066 0.2326 0.2563 0.2784 0.2995 0.3198 3500 H 77.2 176.0 276.2 379.1 487.6 608.4 779.4 1224.6 1338.2 1422.2 1495.5 1563.3 1629.2 1693.6 1757.2

s 0.1274 0.2899 0.4312 0.5585 0.6777 0.7973 0.9508 1.3242 1.4112 1.4709 1.5194 1.5618 1.6002 1.6358 1.6691

v 0.0159 0.0164 0.0172 0.0182 0.0198 0.0223 0.0287 0.1052 0.1463 0.1752 0.1994 0.2210 0.2411 0.2601 0.2783 4000 H 78.5 177.2 277.1 379.8 487.7 606.9 763.0 1174.3 1311.6 1403.6 1481.3 1552.2 1619.8 1685.7 1750.6

s 0.1271 0.2893 0.4304 0.5573 0.6760 0.7940 0.9343 1.2754 1.3807 1.4461 1.4976 1.5417 1.5812 1.6177 1.6516

v 0.0159 0.0164 0.0171 0.0181 0.0196 0.0219 0.0268 0.0591 0.1038 0.1312 0.1529 0.1718 0.1890 0.2050 0.2203 5000 H 81.1 179.5 279.1 381.2 488.1 604.6 746.0 1042.9 1252.9 1364.6 1452.1 1529.1 1600.9 1670.0 1737.4

s 0.1265 0.2881 0.4287 0.5550 0.6726 0.7880 0.9153 1.1593 1.3207 1.4001 1.4582 1.5061 1.5481 1.5863 1.6216

v 0.0159 0.0163 0.0170 0.0180 0.0195 0.0216 0.0256 0.0397 0.0757 0.1020 0.1221 0.1391 0.1544 0.1684 0.1817 6000 H 83.7 181.7 281.0 382.7 488.6 602.9 736.1 945.1 1188.8 1323.6 1422.3 1505.9 1582.0 1654.2 1724.2

s 0.1258 0.2870 0.4271 0.5528 0.6693 0.7826 0.9026 1.0176 1.2615 1.3574 14229 1.4748 1.5194 1.5593 1.5962

v 0.0158 0.0163 0.0170 0.0180 0.0193 0.0213 0.0248 0.0334 0.0573 0.0816 0.1004 0.1160 0.1298 0.1424 0.1542 7000 H 86.2 184.4 283.0 384.2 489.3 601.7 729.3 901.8 1124.9 1281.7 1392.2 1482.6 1563.1 1638.6 1711.1

s 0.1252 0.2859 0.4256 0.5507 0.6663 0.7777 0.8926 1.0350 1.2055 1.3171 1.3904 1.4466 1.4938 1.5355 1.5735

1. See Notes 1 and 2, Table 1.

Steam 41/ Thermodynamics of Steam 2-5

The Babcock & Wilcox Company

1.0 1.1 12 1.3 1.4 1.5 1.9 2.0 2.1 2.31~r-----r-----,-----,-----,-----,-----,-----,-----,-----~----,-----,----..~----.16~

16oor-----r-----+_----+_----+_----+_-----+--~~tr--_1~~_1+_~~t_7_--t_~~i7~~1600

1300~----+_----+_----+_-+~~~~A_~~+f_7~~f_--~--~~. 1300

1250t----t-----+----~fH_/f__+If-r_-

1000f-----t-f. ~~~-+-~~----+---4---~1000

~ __~fv~~--~_r----1_----+_--~----_r----~----+_--~~

7~1L.0~~~1~.1~~~1~.2-L--L1J.3~~~1.~4---L-1~.5---1~.6----~1.~7----1L.8---1~.9----~2.LO----2L~--~2.-2---~2_1~

Entropy. Btu/lb F

Mollier diagram (H-s) for steam.

Steam 41 / Thermodynamics of Steam