Saturated steam at 99.6 °C is heated to 350°C. Use the steam table provided to determine: a. The required heat input if 1 kg of steam undergoes the process in a variable-volume constant-pressure container. b. The work of expansion (in k) of the steam undergoing the process. c. The required heat input if a continuous stream flowing at 1 kg/s undergoes the process at constant pressure. d. Does your numeric answer to part c equal the sum of parts b and a? Explain why or why not. Given: 1 bar = 10 N/m, Q=AH, Q = AU, AH = AÙ + PAV, table B.7 in kJ/kg and m°/kg.

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Saturated steam at 99.6 °C is heated to 350°C. Use the steam table provided to determine:
a. The required heat input if 1 kg of steam undergoes the process in a variable-volume constant-pressure container.
b. The work of expansion (in kJ) of the steam undergoing the process.
C. The required heat input if a continuous stream flowing at 1 kg/s undergoes the process at constant pressure.
d. Does your numeric answer to part c equal the sum of parts b and a? Explain why or why not.
Given: 1 bar =
10 N/m4, Q= AH, Q = AU, AA = AÛ + PAV, table B.7 in kJ/kg and m/kg.
Transcribed Image Text:Saturated steam at 99.6 °C is heated to 350°C. Use the steam table provided to determine: a. The required heat input if 1 kg of steam undergoes the process in a variable-volume constant-pressure container. b. The work of expansion (in kJ) of the steam undergoing the process. C. The required heat input if a continuous stream flowing at 1 kg/s undergoes the process at constant pressure. d. Does your numeric answer to part c equal the sum of parts b and a? Explain why or why not. Given: 1 bar = 10 N/m4, Q= AH, Q = AU, AA = AÛ + PAV, table B.7 in kJ/kg and m/kg.
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Done Elementary Principles of Chemic...
APPENDIX B Physical Property Tables
TABLE B.7 Properties of Superheated Steam“
P(bar)
(Tsat. °C)
Sat'd
Water
Sat'd
Temperature (°C)→
50
Steam
75
100
150
200
250
300
350
2689
2517
3177
2890
0.0
2595
2642
2784
2880
2978
3077
(-)
2446
2481
2589
2662
2736
2812
2640
2480
2783
2588
2977
2736
191.8
2584.8
2438.0
2593
2444
2688
2516
2880
2661
3077
2812
3177
2890
0.1
(45.8)
191.8
V 0.00101
14.7
14.8
16.0
17.2
19.5
21.8
24.2
26.5
28.7
340.6
2683
2512
3.41
0.5
2646.0
209.3
209.2
313.9
2780
2878
2979
3076
3177
2586
3.89
2660
4.35
2889
5.75
(81.3)
340.6
2484.0
3.24
313.9
V 0.00103
2735
4.83
2811
5.29
0.00101
0.00103
209.3
209.2
0.00101
2975
2734
2.40
2675.4
417.5
417.5
V 0.00104
314.0
313.9
2676
2507
1.69
2776
2583
2875
2658
3074
2811
2.64
3176
2889
2.87
1.0
(99.6)
2506.1
1.69
0.00103
1.94
2.17
5.0
640.1
2747.5
209.7
314.3
419.4
632.2
2855
2961
3065
3168
209.2
0.00101
418.8
0.00104
2724
0.474
2803
0.522
(151.8)
639.6
2560.2
313.8
631.6
2643
0.425
2883
V 0.00109
0.375
0.00103
0.00109
0.571
762.6
761.5
V 0.00113
2776.2
2582
0.194
314.7
313.7
0.00103
2827
2621
2943
2710
419.7
3052
3159
2876
0.282
10
632.5
210.1
209.1
0.00101
631.4
0.00109
(179.9)
418.7
2794
0.00104
0.206
0.233
0.258
211.0
209.0
315.5
313.5
2902
2679
3025
2774
3139
2862
20
2797.2
2598.2
0.09950
420.5
852.6
850.2
908.6
633.1
(212.4)
906.2
418.4
603.9
V 0.00118
0.00101
0.00102
0.00104
0.00109
0.00116
0.111
0.125
0.139
A 1087.4
Û 1082.4
D 0.00125
Âu 1213.7
O 1205.8
D 0.00132
40
2800.3
212.7
317.1
422.0
634.3
853.4
1085.8
2962
3095
(250.3)
2601.3
208.6
313.0
417.8
630.0
848.8
1080.8
2727
2829
0.04975
0.00101
0.00102
0.00104
0.00109
0.00115
0.00125
0.0588
0.0665
635.6
629.1
2885
2668
2785.0
214.4
423.5
417.3
854.2
847.3
60
318.7
1085.8
3046
(275.6)
2590.4
0.0325
208.3
312.6
1078.3
2792
0.00101
0.00103
0.00104
0.00109
0.00115
0.00125
0.0361
0.0422
ÂU 1317.1
O 1306.0
V 0.00139
ÂĤ 1408.0
Û 1393.5
V 0.00145
Âu 1611.0
2759.9
2571.7
0.0235
425.0
416.7
855.1
845.9
80
636.8
2990
216.1
208.1
320.3
1085.8
2787
(295.0)
312.3
628.2
1075.8
2593
2750
0.00101
0.00102
0.00104
0.00109
0.00115
0.00124
0.0243
0.0299
2727.7
2547.3
217.8
207.8
100
322.9
426.5
638.1
855.9
1085.8
1343.4
2926
311.7
0.00102
(311.0)
416.1
627.3
844.4
1073.4
1329.4
2702
0.0181
0.00101
0.00104
0.00109
0.00115
0.00124
0.00140
0.0224
1086.2
222.1
207.0
150
2615.0
326.0
430.3
641.3
858.1
1338.2
2695
(342.1)
1586.1
2459.9
310.7
414.7
625.0
841.0
1067.7
1317.6
2523
0.00166
0.0103
0.00101
0.00102
0.00104
0.00108
0.00114
0.00123
0.00138
0.0115
ÂĤ 1826.5
Û 1785.7
V 0.00204
434.0
413.2
200
330.0
2418.4
2300.8
0.005875
644.5
622.9
860.4
837.7
226.4
1086.7
1334.3
1647.1
1307.1
0.00136
(365.7)
206.3
0.00100
309.7
1062.2
1613.7
0.00102
0.00103
0.00108
0.00114
0.00122
0.00167
1635.5
1600.3
645.8
1087.0
221.2(P.)
(374.15)(T.) Ô 2037.8
2108
2108
228.2
331.7
435.7
861.4
1332.8
2037.8
1302.9
0.00135
206.0
309.2
412.8
622.0
836.3
1060.0
V 0.00317
0.00317
0.00100
0.00102
0.00103
0.00108
0.00114
0.00122
0.00163
230.7
205.7
0.00100
250
334.0
437.8
647.7
862.8
1087.5
1331.1
1625.0
(-)
308.7
412.1
620.8
834.4
1057.0
1297.5
1585.0
0.00101
0.00103
0.00108
0.00113
0.00122
0.00135
0.00160
235.0
205.0
338.1
307.7
441.6
650.9
618.7
865.2
831.3
300
1088.4
1328.7
1609.9
(-)
410.8
1052.1
1288.7
1563.3
0.0009990
0.00101
0.00103
0.00107
0.00113
0.00121
0.00133
0.00155
251.9
202.4
354.2
304.0
500
456.8
664.1
611.0
875.4
819.7
1093.6
1323.7
1576.3
(-)
405.8
1034.3
1259.3
1504.1
0.0009911
0.00100
0.00102
0.00106
0.00111
0.00119
0.00129
0.00144
293.9
196.5
1000
394.3
495.1
698.0
903.5
1113.0
1328.7
1550.5
(-)
295.7
395.1
594.4
795.3
1207.1
999.0
1419.0
0.0009737
0.0009852
0.001000
0.00104
0.00108
0.00114
0.00122
0.00131
"Adapted from R. W. Haywood, Thermodynamic Tables in SI (Metric) Units, Cambridge University Press, London, 1968.
Water is a liquid in the enclosed region between 50°C and 350°C. ÂĤ = specific enthalpy (kJ/kg), Û = specific internal energy
(kJ/kg), V = specific volume (m/kg). Note: kJ/kg x 0.4303 = Btu/lb,-
(сontinued)
||
...
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||||| |||
Transcribed Image Text:1 Вoost 19:02 @ 66% Done Elementary Principles of Chemic... APPENDIX B Physical Property Tables TABLE B.7 Properties of Superheated Steam“ P(bar) (Tsat. °C) Sat'd Water Sat'd Temperature (°C)→ 50 Steam 75 100 150 200 250 300 350 2689 2517 3177 2890 0.0 2595 2642 2784 2880 2978 3077 (-) 2446 2481 2589 2662 2736 2812 2640 2480 2783 2588 2977 2736 191.8 2584.8 2438.0 2593 2444 2688 2516 2880 2661 3077 2812 3177 2890 0.1 (45.8) 191.8 V 0.00101 14.7 14.8 16.0 17.2 19.5 21.8 24.2 26.5 28.7 340.6 2683 2512 3.41 0.5 2646.0 209.3 209.2 313.9 2780 2878 2979 3076 3177 2586 3.89 2660 4.35 2889 5.75 (81.3) 340.6 2484.0 3.24 313.9 V 0.00103 2735 4.83 2811 5.29 0.00101 0.00103 209.3 209.2 0.00101 2975 2734 2.40 2675.4 417.5 417.5 V 0.00104 314.0 313.9 2676 2507 1.69 2776 2583 2875 2658 3074 2811 2.64 3176 2889 2.87 1.0 (99.6) 2506.1 1.69 0.00103 1.94 2.17 5.0 640.1 2747.5 209.7 314.3 419.4 632.2 2855 2961 3065 3168 209.2 0.00101 418.8 0.00104 2724 0.474 2803 0.522 (151.8) 639.6 2560.2 313.8 631.6 2643 0.425 2883 V 0.00109 0.375 0.00103 0.00109 0.571 762.6 761.5 V 0.00113 2776.2 2582 0.194 314.7 313.7 0.00103 2827 2621 2943 2710 419.7 3052 3159 2876 0.282 10 632.5 210.1 209.1 0.00101 631.4 0.00109 (179.9) 418.7 2794 0.00104 0.206 0.233 0.258 211.0 209.0 315.5 313.5 2902 2679 3025 2774 3139 2862 20 2797.2 2598.2 0.09950 420.5 852.6 850.2 908.6 633.1 (212.4) 906.2 418.4 603.9 V 0.00118 0.00101 0.00102 0.00104 0.00109 0.00116 0.111 0.125 0.139 A 1087.4 Û 1082.4 D 0.00125 Âu 1213.7 O 1205.8 D 0.00132 40 2800.3 212.7 317.1 422.0 634.3 853.4 1085.8 2962 3095 (250.3) 2601.3 208.6 313.0 417.8 630.0 848.8 1080.8 2727 2829 0.04975 0.00101 0.00102 0.00104 0.00109 0.00115 0.00125 0.0588 0.0665 635.6 629.1 2885 2668 2785.0 214.4 423.5 417.3 854.2 847.3 60 318.7 1085.8 3046 (275.6) 2590.4 0.0325 208.3 312.6 1078.3 2792 0.00101 0.00103 0.00104 0.00109 0.00115 0.00125 0.0361 0.0422 ÂU 1317.1 O 1306.0 V 0.00139 ÂĤ 1408.0 Û 1393.5 V 0.00145 Âu 1611.0 2759.9 2571.7 0.0235 425.0 416.7 855.1 845.9 80 636.8 2990 216.1 208.1 320.3 1085.8 2787 (295.0) 312.3 628.2 1075.8 2593 2750 0.00101 0.00102 0.00104 0.00109 0.00115 0.00124 0.0243 0.0299 2727.7 2547.3 217.8 207.8 100 322.9 426.5 638.1 855.9 1085.8 1343.4 2926 311.7 0.00102 (311.0) 416.1 627.3 844.4 1073.4 1329.4 2702 0.0181 0.00101 0.00104 0.00109 0.00115 0.00124 0.00140 0.0224 1086.2 222.1 207.0 150 2615.0 326.0 430.3 641.3 858.1 1338.2 2695 (342.1) 1586.1 2459.9 310.7 414.7 625.0 841.0 1067.7 1317.6 2523 0.00166 0.0103 0.00101 0.00102 0.00104 0.00108 0.00114 0.00123 0.00138 0.0115 ÂĤ 1826.5 Û 1785.7 V 0.00204 434.0 413.2 200 330.0 2418.4 2300.8 0.005875 644.5 622.9 860.4 837.7 226.4 1086.7 1334.3 1647.1 1307.1 0.00136 (365.7) 206.3 0.00100 309.7 1062.2 1613.7 0.00102 0.00103 0.00108 0.00114 0.00122 0.00167 1635.5 1600.3 645.8 1087.0 221.2(P.) (374.15)(T.) Ô 2037.8 2108 2108 228.2 331.7 435.7 861.4 1332.8 2037.8 1302.9 0.00135 206.0 309.2 412.8 622.0 836.3 1060.0 V 0.00317 0.00317 0.00100 0.00102 0.00103 0.00108 0.00114 0.00122 0.00163 230.7 205.7 0.00100 250 334.0 437.8 647.7 862.8 1087.5 1331.1 1625.0 (-) 308.7 412.1 620.8 834.4 1057.0 1297.5 1585.0 0.00101 0.00103 0.00108 0.00113 0.00122 0.00135 0.00160 235.0 205.0 338.1 307.7 441.6 650.9 618.7 865.2 831.3 300 1088.4 1328.7 1609.9 (-) 410.8 1052.1 1288.7 1563.3 0.0009990 0.00101 0.00103 0.00107 0.00113 0.00121 0.00133 0.00155 251.9 202.4 354.2 304.0 500 456.8 664.1 611.0 875.4 819.7 1093.6 1323.7 1576.3 (-) 405.8 1034.3 1259.3 1504.1 0.0009911 0.00100 0.00102 0.00106 0.00111 0.00119 0.00129 0.00144 293.9 196.5 1000 394.3 495.1 698.0 903.5 1113.0 1328.7 1550.5 (-) 295.7 395.1 594.4 795.3 1207.1 999.0 1419.0 0.0009737 0.0009852 0.001000 0.00104 0.00108 0.00114 0.00122 0.00131 "Adapted from R. W. Haywood, Thermodynamic Tables in SI (Metric) Units, Cambridge University Press, London, 1968. Water is a liquid in the enclosed region between 50°C and 350°C. ÂĤ = specific enthalpy (kJ/kg), Û = specific internal energy (kJ/kg), V = specific volume (m/kg). Note: kJ/kg x 0.4303 = Btu/lb,- (сontinued) || ... ||| ||||| |||
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