An unknown ideal gas (MW=10 kg/kmol and k=1.3) closed system underwent in a cycle described by the following processes below: Process 1-2 : From 40°C and 1 bar to 3 bars isentropically Process 2-3: Polytropically to 5 bars at n=2 Process 3-1: Isometrically Find the pressure at the 3rd state in bars and overall change of entropy for the cycle in kJ/kg-K.
An unknown ideal gas (MW=10 kg/kmol and k=1.3) closed system underwent in a cycle described by the following processes below: Process 1-2 : From 40°C and 1 bar to 3 bars isentropically Process 2-3: Polytropically to 5 bars at n=2 Process 3-1: Isometrically Find the pressure at the 3rd state in bars and overall change of entropy for the cycle in kJ/kg-K.
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
Related questions
Question
100%
An unknown ideal gas (MW=10 kg/kmol and k=1.3) closed system underwent in a cycle described by the following processes below:
Process 1-2 : From 40°C and 1 bar to 3 bars isentropically
Process 2-3: Polytropically to 5 bars at n=2
Process 3-1: Isometrically
Find the pressure at the 3rd state in bars and overall change of entropy for the cycle in kJ/kg-K.
Transcribed Image Text:Steam Table References
Table 2
Press
MPa
Р
Р
.010
.011
.012
45.81
1.0102
47.69 1.0111
49.42 1.0119
013
51.04 1.0126
.014 52.55 1.0134
(t Sat.
"
Sat.
25
30
35
40
45
.100 99.63 1.0432 1694.0
.105 101.00 1.0443 1618.4
110 102.31 1.0453 1549.5
.115 103.58 1.0463 1486.4
.120 104.80 1.0473 1428.4
50
55
60
10.0 311.06 1.4524 18.026
10.2 312.52 1.4595 17.588
10.4 313.96 1.4667 17.167
10.6 315.38 1.4739 16.760
10.8 316.77 1.4812 16.367
Table 3
65
70
75
80
85
95
100
110
120
130
140
150
160
170
180
190
200
210
220
230
240
250
260
270
280
290
Temp
°C
t
300
320
340
360
380
Specific Volume
Sat.
Liquid
10¹v,
400
420
440
460
450
500
550
600
650
700
Sat.
Vapor
10³,
14 674
13 415
12 361
11 465
10 693
010 (45.81)
.
10² -
.
14 674 2437.9 2584.7 8.1502
13 700 24083 2545.3 8.0228
8.0541
13934 24154 25543
14 168 2422.3 2564.2 8.0830
14 402 24296 2573.7 8.1134
14 636 24768 25831 $.1454
14 869
15 102
2443.9 2592.6
2451.0 2602.1
8.1749
8.2040
15 336 24582 26115 82327
15 569, 24653 26210 82609
15 801, 2472.5 26305 8.2887
16 034
16 267
2479.6 2640.0 8.3162
24863 26495 8.3432
16 499 2494.0 2659.0 8.3699
16 731 2501.1 2668.5 8.3963
16964. 2508.3 2678.0 8.4223
17 196
17 660
18 123.
18 586
19 050 2573.3 2763.8
2515.5 26875 84479
25299 27065 8.4983
25444 2725.6 8.5474
25588 2744.7 8.5954
86423
19 512. 25879 2783.0
8.6882
8.7331
19 975
2602 5 2802 2
2617.1 2821.5
20 438
20 900
8.7770
2631.8 2840.8 8.8201
2646.5 2860.1
21 363
8.8623
21 825 2661.3 28795 8.9038
22 287 2676.1 2899.0 8.944
8.9844
9.0237
23 674 2720.9 2957.7 9.0623
22 749 2691.0 2918.5
23 212 27059 2938.0
24 136 2736.0 2977.3 9.1002
24 598 2751.1 2997.0 9.1376
9.1743
9.2105
9.2462
25 059 2766 2 3016.8
25 521 2781.5 3036.7
25 983
2796.7 3056.6
26 445
2812.1 3076.5
9.2813
2842.9 31166 93501
27 369
28 292 28741 31570
94170
29 216 2905.4 3197.6 9.4821
30 139
29370 32384 9.5457
31 063 2968.9 3279.6 9.6077
31 986 3001.1 3320.9 9.6682
32 909 3033.5 3362.6 9.7275
33 832 3066.1 3404.5
9.7854
9.3422
34 756 3099.1 3446.6
35 679 3132.3 3489.1
9.8978
37 987 32165 3596.4 10.0323
40 295 3302.5 3705.4 10.1608
42 603 3390.1 3816.2 10.2842
44 911 3479.6 3928.7 10.4028
Internal Energy
Sat.
Sat.
Liquid Evap. Vapor
U
u,
u₂
191.82 2246.1 2437.9
199.66 2240.8 2440.4
206.91 2235.8 2442.7
213.66 2231.2 2444.9
219.98 2226.9 2446.9
417.36 2088.7 2506
423.13 2084.6 2507.7
428.68 2080.5 2509.2
434.03 2076.7 2510.7
439.20 2072.9 2512.1
1393.04 1151.4 2544.4
1401.31 1140.3 2541.6
1409.51 1129.2 2538.7
1417.64 1118.2 2535.8
1425.71 1107.1 2532.8
POS
Sat.
Liquid
h,
Enthalpy
191.83 2392.8 2584.7
199.67 2388.3 2588.0
206.92 2384.1 2591.1
213.67 2380.2 2593.9
219.99 2376.6 2596.6
Sat.
1445.0 2428.2 2572.7
50
55 14703 2436.1 2583.2
60 1496.4 2444 2593.7
65 15219 24520 2604.2
70 1547.1 2439.9 2614.6
300
320
340
360
380
Sat.
Sat.
Evap. Vapor Liquid
h
h,
S₁
417.46 2258.0 2675.5
423.24 2254.4 2677.6
428.79 2250.9 2679.7
434.15 2247.5 2681.7
439.32 2244.2 2683.5
10 (99,63)
1407.56 1317.1 2724.7
1416.19 1304.8 2721.0
1424.76 1292.5 2717.3
1433.26 1280.2 2713.5
1441.70 1267.9 2709.6
500
520
540
10¹ v
W
1694.0 2506.1 2675.5 7.3594
580
75 1572.2 2467.8 2625.0 7.2192
7.2487
80 1597.2 2475.6 2635.3
85
7.2776
1622.0 2483.4 2645.6
90 1646.8 2491.2 2655.9 7.3061
95 1671 3 2498.9 26661 7.3340
7.0633
7.0956
7.1274
100 16958 2506.7 2676.2 7.3614
$10 1744.5 2522.0 2696.5 74149
120 1792.9 2537.3 2716.6 7.4668
130 1840.9 2552.5 2736.6 75170
140 1888.7 2567.7 2756.5 7.5659
7.1586
7.1892
150 1936.4 2582.8 2776.4 7.6134
160 1983.8 25978 2796.2 7.6597
170 2031.1 2612.9 2816.0 7.7048
180 2078 2 26279 2835.8 7.7489
190 2125.3 2643.0 2855.5 7.7921
200
2172 2658.1 2875.3
210 2219 2673.1 2895.1
220 2266 2688.2 2914.8
7.8343
7.8756
7.9162
230 2313, 27034 2934.6 7.9559
240 2359. 2718.5 2954.5 7.9949
250 2406 2733.7 2974.3 8.0333
260 2453 2749.0 2994.3 8.0710
270 2499 2764 3 3014.2 8.1080
280 2546 2779.6 3034.2 8.1445
290 2592 2795.0 3054.2 8.1804
400 3103. 2967.9 3278.2 8.5435
420 3195 3000.1 3319.6 8.6042
440 3288 3032.6 3361.4 8.6636
460 3380. 3065.3 3403.4 8.7216
480 3473. 3098.3 3445.6 8.7785
2639 28104 3074.3 8.2158
2732 2841.5 3114.6 8.2849
2824. 2872.7 3155.2 8.3521
2917 2904.2 3195.9 8.4175
3010 2935.9 3236.9 8.4813
3565. 3131.6 3488.1 8.8342
3658. 3165.1 3530.9 8.8888
3750 3198.9 3574.0 8.9424
3843 3233.0 36173 89950
3935. 32673 3660.9 9.0467
600 4028. 3301.9 3704.7 9.0976
Entropy
Evap.
SA
6493 7.5009 8.1502
6738 7.4430 8.1168
.6963 7.3900 8.0863
7172 7.3412 8.0584
.7366 7.2959 8.0325
1.3026 6.0568 7.3594
1.3181 6.0249 7.3430
1.3329 5.9944 7.3273
1.3471 5.9653 7.3124
1.3608 5.9373 7.2981
3.3596 2.2544 5.6141
3.3739 2.2278 5.6017
3.3880 2.2014 5.5894
3.4020 2.1752 5.5771
3.4158 2.1491 5.5649
10.0 (311.05)
17.864 2538.5 2717.1
T8.393 2565.1 2751.0
19.253 2588.8 2781.3
10) ▼
h
18.026 2544.4 2724.7 5.6141 Sat.
19.861 2610.4 2809.1
20.429 2630.4 2834.7
20.964 2649.1 2858.7
21.472 2666.6 2881.4
21.957 2683.3 2902.9
22.42 2699.2 2923.4
23.31 2729.1 2962.1
24.14 2756.9 2998.3
24.93 2783.2 3032.5
25.68 2808.3 3065.1
26.41 2832.4 3096.5
27.11 2855.7 3126.8
27.80 2878.4 3156.3
28.46 2900.4 .3185.1
29.11 2922.1 3213.2
Sat.
Vapor
s
29.75 2943.4 3240.9
30.38 2964.3 3268.1
30.99 2985.0 3294.9
31.60 3005.4 33214
32.20 3025.7 3347.7
32.79 3045.8 3373.7
33.37 3065.8 3399.5
33.94 3085.6 3425.1
34.51 3105.3 3450.5
35.08 3125.0 3475.8
35.64 3144.6 3500.9
36.19 3164.1 3526.0
36.74 3183.5 3550.9
37.29 3203.0 3575.8
37.83 3222.3 3600.6
38.37 3241.7 3625.3
S
Sat
(
305
5.6011 310
5.6589 315
5.7103 320
5.7568 325
5.7996 330
5.8392 335
5.8763 340
5.9112 345
5.9443 350
6.0060 360
6.0626 370
6.1154 380
6.1650 390
6.2120 400
6.2567 410
6.2995 420
6.3407 430
6.3805 440
6.4190 450
6.4564 460
6.4927 470
6.5282 480
6.5628 490
6.5966 500
6.6297 510
6.6622 520
6.6941 530
6.7254 540
6.7561 550
6.7864 560
6.8162 570
6.8455 580
6.8744 590
6.9029 600
Transcribed Image Text:Table 4
(t Sat.)
t
Sat.
9
20
40
60
80
10³ v
...
h
-.03-0001
2966
1.0002 -.03
1.0018 83.95 83.95
1.0078 167.56 167.56 5725
1.0172 251.12 251.12 8312
1.0291 334.87 334.87 1.0753
100 1.0436 418.96 418.96 1.3069
120 1.0604 503.57 503.57 1.5278
140 1.0800 588.89 588.89 1.7395
160 1.1024 675.19 675.19 1.9434
180 1.1283 762.72 762.72 2.1410
200 1.1581 851.8 851.8 2.3334
210 1.1749 897.1 897.1 2.4281
897.1 2.4281
220 1.1930 943.0 943.0 2.5221
230 1.2129 989.6 989.6 2.6157
989.6 2.6157
240 1.2347 1037.1 1037.1 2.7091
250 1.2590 1085.6 1085.6 2.8027
260 1.2862 1135.4 1135.4 2.8970
270 1.3173 1186.8 1186.8 2.9926
280 1.3535 1240.4 1240.4 3.0904
290 1.397 1297.0 1297.0 3.1918
300 14520 1358.1 1358.1 3.2992
310
2.5 (223.99)
h
S
1.1973 959.1 962.1 2.5546
999000 2.50-0000
1.0006 83.80 86.30 2961
1.0067 167.25 169.77
1.0160 250.67 253.21 8298
1.0280 334.29 336.86 1.0737
5715
1.0423 418.24 420.85 1.3050
1.0590 502.68 505.33 1.5255
1.0784 587.82 590.52 1.7369
1.1006 673.90 676.65 1.9404
1.1261 761.16 763.97 2.1375
1.1555 849.9 852.8 2.3294
1.1720 895.0 898.0 2.4238
1.1898 940.7 943.7 2.5174
1.2092 987.0 990.1 2.6105
1.2305 1034.2 1037.2 2.7034
1.2540 1082.3 1085.4 2.7964
1.2804 1131.6 1134.8 2.8898
1.3102 1182.4 1185.7 2.9844
1.3447 1235.1 1238.5 3.0808
1.3855 1290.5 1294.0 3.1801
1.4357 1349.6 1353.2 3.2843
p(t Sat.)
(
Sat.
0
20
40
60
80
100
120
140
160
180
200
210
220
230
240
250
260
270
280
290
300
310
320
330
340
10.0 (311.06)
10 v
1.4524 1393.0 1407.6 3.3596
9952 09 10.04 .0002
9972 83.36 93.33 2945
1.0034 166.35 176.38 5686
1.0127 249.36 259.49 8258
1.0245 332.59 342.83 1.0688
U
S
1.0385 416.12 426.50 1.2992
1.0549 500.08 510.64 1.5189
1.0737 584.68 595.42 1.7292
1.0953 670.13 681.08 1.9317
1.1199 756.65 767.84 2.1275
1.1480 844.5 856.0 2.3178
1.1637 889.1 900.7 2.4113
1.1805 934.1 945.9 2.5039
1.1988 979.7 991.7 2.5958
1.2187 1026.0 1038.1 2.6872
1.2405 1073.0 1085.4 2.7785
1.2645 1121.1 1133.7 2.8699
1.2913 1170.3 1183.2 2.9618
1.3216 1220.9 1234.1 3.0548
1.3564 1273.4 1287.0 3.1495
1.3972 1328.4 1342.3 3.2469
1.4465 1386.6 1401.1 3.3485
1.5093 1449.8 1464.9 3.4569
1.5972 1521.5 1537.5 3.5783
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