Refrigerant ( ammonia (R717) ) leaves the condenser as saturated liquid and as saturated vapor from the evaporator. Compression process in the compressor is isentropic. A) Based on the simple vapor-compression refrigeration cycle below, determine the compressor power and COP. Condenser Evaporator ### Plot the T-s and P-h diagrams for options A Licensed for single user.©2009 ASHRAE, Inc. -200 40 200 400 600 800 1000 1200 1400 1600 R-717 1800 2000 2200 2400 40 20 (ammonia) Reference state - 200.0 kkg. s1.00 kkg-K) for saturated quid at OC 300 250 350 150 200 100 kgim 80 20 10 60 8 6 40 10 100 30 8 80 20 6 15 4 2 60 10 8.0 2 6.0 0.8 T= 20°C 4.0 0.6 3.0 0.4 0.8 2.0 0.6 1.5 0.4 0.2 1.0 0.80 0.2 0.1 0.08 0.60 0.40 0.06 0.1 0.30 0.04 0.08 0.20 0.06 0.15 0.02 0.04 0.10 840 KJkg K) 0.080 0.02 0.01 -200 0.060 200 400 600 800 1000 1200 1400 Properties computed with NIST REFPROP version 7.0 1600 0.01 2400 1800 2000 2200 ENTHALPY, kJ/kg Fig. 16 Pressure-Enthalpy Diagram for Refrigerant 717 (A mmonia) Bosed on formuation of Tilner-Roth et al (1993) కి కి కికి 006 000 PRESSURE, MPa
Refrigerant ( ammonia (R717) ) leaves the condenser as saturated liquid and as saturated vapor from the evaporator. Compression process in the compressor is isentropic. A) Based on the simple vapor-compression refrigeration cycle below, determine the compressor power and COP. Condenser Evaporator ### Plot the T-s and P-h diagrams for options A Licensed for single user.©2009 ASHRAE, Inc. -200 40 200 400 600 800 1000 1200 1400 1600 R-717 1800 2000 2200 2400 40 20 (ammonia) Reference state - 200.0 kkg. s1.00 kkg-K) for saturated quid at OC 300 250 350 150 200 100 kgim 80 20 10 60 8 6 40 10 100 30 8 80 20 6 15 4 2 60 10 8.0 2 6.0 0.8 T= 20°C 4.0 0.6 3.0 0.4 0.8 2.0 0.6 1.5 0.4 0.2 1.0 0.80 0.2 0.1 0.08 0.60 0.40 0.06 0.1 0.30 0.04 0.08 0.20 0.06 0.15 0.02 0.04 0.10 840 KJkg K) 0.080 0.02 0.01 -200 0.060 200 400 600 800 1000 1200 1400 Properties computed with NIST REFPROP version 7.0 1600 0.01 2400 1800 2000 2200 ENTHALPY, kJ/kg Fig. 16 Pressure-Enthalpy Diagram for Refrigerant 717 (A mmonia) Bosed on formuation of Tilner-Roth et al (1993) కి కి కికి 006 000 PRESSURE, MPa
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
Transcribed Image Text:Thermophysical Properties of Refrigerants
30.35
Refrigerant 717 (Ammonia) Properties of Saturated Liquid and Saturated Vapor
Pres Density, Volume,
Temp,* sure, kg/m m'kg
Enthalpy,
Entropy.
kJNkg-K)
Specific Heat e
kN(kg-K)
Velocity of
Sound, m/s
Viscosity,
uPas
Thermal Cond. Surface
mW(m-K)
ple
Tension, Temp.
MPa Liquid Vapor Liquid Vapor Liquid Vapor Liquid Vapor Vapor Liquid Vapor Liquid Vapor Liquid Vapor mNim
-77.65 0.00609 732.9 15.602 -143.15 1341.23 -0.4716 7.1213
4.202 2.063
1.325
2124
354.1
559.6
6.84
819.0
19.64
62.26
-77.65
-70
0.01094 724.7 9.0079 -110.81 1355 55
-0.3094 6.90BB
4.245 2.086
1.327
2051
360.5
475.0
7.03
792.1
19.73
59.10
-70
60
0.02189 713.6 4.7057
68.06 1373.73
0.1040 6,6602
4.303 2.125
1.330
1967
368.4
391.3
7.30
757.0
19.93
55.05
-60
50
0.04084 702.1 2.6277 -24.73 1391.19
0.0945
6.4396
6.2425
4.360 2.178
1.335
1890
375.6
3289
7.57
722.3
20.24
51.11
-50
40
0.07169 690.2 1.5533
19.17 1407.76
0.2867
4.414 2.244
1.342
1816 382.2
281.2
7.86
688.1
20.64
47.26
-40
-38
0.07971 687.7 1.4068
28.01 1410.96
0.3245
6.2056
4.424 2.259
1.343
1802
383.4
273.1
7.92
681.4
20.73
46.51
-38
-36
0.08845 685.3 1.2765
36.88 1414.11
0.3619
6.1694
4.434 2.275
1.345
1787
384.6
2653
7.98
674.6
20.83
45.75
-36
-34
0.09795 682.8 1.1604
45.77 1417.23
0.3992
6.1339
4.444 2.291
1.347
1773
385.8
257.9
R.03
667.9
20.93
45.00
-34
3333 0.10133 682.0 1.1242
48.76 1418.26 0.4117 6.1221
4.448 2.297
1.348
1768
386.2
255.5
665,7
20.97
44.75
-33.33
-32
0.10826 680.3 1.0567
54.67 1420.29
0.4362 6.0992
4.455 2.308
1.349
1759
387.0
250.8
R.09
661.3
21.04
44.26
-32
30
0.11943 677.8 0.96396 63.60 1423 31
0.4730
6.0651
4.465 2.326
1.351
1744
388.1
244.1
R15
654.6
21.15
43.52
-30
28
0.13151 675.3 0.88082 72.55 1426.28
0.5096
6.0317
4.474 2.344
1.353
1730
389.2
237.6
821
648.0
21.26
42.78 -28
-26
0.14457 672.8 0.80614 81.52 1429.21
0.5460 5.9989
4.484 2.363
1.355
1716
390.2
2314
827
641.5
21.38
42.05
-26
-24
0.15864 670.3 0.73896 90.51 1432.08
0.5821
5.9667
4.494 2.383
1.358
1702
391.2
225.5
833
634.9
21.51
41.32
-24
22
0.17379 667.7 0.67840 99.52 1434.91
0.6180
5.9351
4.504 2.403
1.360
1687
392.2
219.8
839
628.4
21.63
40.60
-22
-20
0.19008 665.1 062373 108.55 1437.68
0.6538
5.9041
4.514 2.425
1.363
1673
393.2
2144
845
622.0
21.77
39.88
-20
-18
0.20756 662.6 0.57428 117.60 1440 39
0.6893 5.8736
4.524 2.446
1.365
1659
394.1
209.2
851
615.5
21.90
39.16
-18
-16
0.22630 660.0 0.52949 126.67 1443.06 0.7246
5.8437
4.534 2.469
1.368
1645
395.0
204.2
857
609.1
22.05
22.19
22 35
38.45
-16
4.543 2,493
4.553 2.517
-14
0.24637 657.3 0.48885 135.76 1445.66
0.7597 5.8143
1.371
1631
395.8
1993
8.63
602.8
37.74
-14
-12
0.26782 654.7 0.45192 144.88 1448.21
0.7946
5.7853
1.375
1616
396.7
194.7
8.69
596.4
37.04
-12
22 50
22.67
10
0.29071 652.1 0.41830 154.01 1450.70
0.8293
5.7569
4.564 2.542
1.378
1602
397.5
190.2
185.9
875
590.1
36.34
-10
-8
031513 649.4 0.38767 163.16 1453.14
0.8638
5.7289
4.574 2.568
1.382
1588
398.2
583.9
35.65
-8
-6
0.34114 646.7 0.35970 172.34 1455 51
0.8981
5.7013
4.584 2.594
1.385
1574
398.9
181.7
887
577.7
22.83
34.96
-6
0.36880 644.0 0.33414 181.54 1457.81
0.9323
5.6741
4.595 2.622
1.389
1559
399.6
177.7
8.93
571.5
23.00
34.27
-2
0.39819 641.3 031074 190.76 1460.06
0.9662
5.6474
4.606 2.651
1.393
1545
400.2
1738
899
565.3
23.18
33.59
-2
0.42938 638.6 0.28930 200.00 1462 24
1.0000
5.6210
4.617 2.680
1.398
1531
400.8
170.1
9.06
559.2
2337
32.91
2
0.46246 635.8 0.26962 209.27 1464.35
1.0336
5.5951
4.628 2.710
1.402
1516
401.4
166.5
9.12
553.1
23.55
32.24
4
0.49748 633.1 0.25153 218.5S 1466.40
1.0670 5.5695
4.639 2.742
1.407
1502
401.9
1629
9.18
547.1
23.75
31.57
4.
0.53453 630.3 0.23489 227.87 1468 37
1.1003
5.5442
4.651 2.774
1.412
1487
402.4
159.5
9.24
541.1
23.95
30.91
0.57370 627.5 0.21956 237.20 1470.28
1.1334 5.5192
4.663 2.807
1.417
1473
402.8
156.2
9.30
535.1
24.15
30.24
10
0.61505 624.6 0.20543 246.57 1472.11
1.1664 5.4946
4.676 2.841
1.422
1458
403.2
153.0
936
$29.1
24.37
29.59
10
12
0.65866 621.8 0.19237 255.95 1473.88
1.1992
5.4703
4.689 2.877
1.428
1443
403.6
149.9
9.43
523.2
24.58
28.94
12
14
0.70463 618.9 0.18031 265.37 1475 56
1.2318
5.4463
4.702 2.913
1.434
1429
403.9
146.9
9.49
517.3
24.81
28.29
14
16
0.75303 616.0 0.16914 274.81 1477.17
1.2643
5.4226
4.716 2.951
1.440
1414
404.2
144.0
9.55
S11.5
25.04
27.65
16
18
0.80395 613.1 0.15879 284.28 1478.70 1.2967 5.3991
4.730 2.990
L446
1399
404.4
141.1
9.61
505.6
25.27
27.01
18
1.3289
1.3610
1.3929
20
0.85748 610.2 0.14920 293.78 1480.16
5.379
5.3529
4.745 3.030
1.453
1384
404.6
1383
9.68
499.9
25.52
26.38
20
22
0.91369 607.2 0.14029 303.31 1481.53
4.760 3.071 1.460
1370
404.8
135.6
9.74
494.1
25.77
25.75
22
24
0.97268 604.3 0.13201 312.87 1482.82
5.3301
4.776 3.113
1.468
1355
404.9
133.0
9.80
488.4
26.03
25.12
24
26
1.03450 601.3 0.12431 322.47 1484.02
1.4248
5.3076
4.793 3.158
1.475
1340
404.9
130.4
9.87
482.7
26.29
24.50
26
26 57
26.85
28
1.09930 598.2 Q.11714 332.09 1485.14
1.4565
5.2853
4.810 3.203
1.484
1324
405.0
127.9
9.93
477.0
23.89
28
30
1.16720 595.2 0.11046 341.76 1486.17
1.4881
5.2631
5.2412
4.828 3.250 1.492
1309
404.9
125.5 10.00
471.4
23.28
30
32
1.23820 592.1 0.10422 351.4S 1487.11
1.5196
4.847 3.299
1.501
1294
404.8
123.1 10.06
465.7
27.14
22.67
32
34
131240 589.0 0.09840 361.19 1487.95
1.5509
5.2194
4.867 3.349
1.510
1279
404.7
120.7 10.13
460.1
27.43
22.07
34
36
1.39000 585.8 0.09296 370.96 1488.70
1.5822
5.1978
4.888 3.401
1.520
1263
404.5
1184 10.19
454.6
27.74
21.47
36
38
1.47090 582.6 0.08787 380.78 1489.36
1.6134
5.1763
4.909 3.455
1.530
1248
404.3
116.2 10.26
449.1
28.05
20.88
38
40
1.55540 579.4 0.08310 390.64 1489.91
1.6446 5.1549
4.932 3.510
1.541
1232
404.0
114.0 1033
443.5
28.18
20.29
40
42
1.64350 576.2 0.07863 400.54 1490 36
1.6756 5.1337
4.956 3.568
1.553
1216
403.7
1119 1039
438.0
28.71
19.71
42
44
1.73530 572.9 0.07445 410.48 1490.70
1.7065 5.1126
4.981 3.628
1.565
1201
4033
109.8 10.46
432.6
29.06
19.13
44
46
1.83100 S69.6 0.07052 420.48 1490.94
1.7374 5.0915
5.007 3.691
1.577
1185
402.9
107.8 10.53
427.1
29.41
18.56
46
48
1.93050 566.3 0.06682 430.52 1491.06
1.7683 5.0706
5.034 3.756
1.591
1169
402.4
105.8 10.60
421.7
29.78
17.99
48
50
2.03400 562.9 0.06335 440.62 1491.07
1.7990 5.0497
5.064 3.823
1.605
1153
401.9
103.8 10.67
416.3
30.16
17.43
50
55
231110 554.2 0.05554 466.10 1490 57
1.8758
4.9977
5.143 4.005
1.643
I112
400.3
99.0 10.86
402.9
31.16
16.04
55
60
261560 545.2 0.04880 491.97 1489.27
1.9523
4.945B
5.235 4.208
1.687
1070
398.3
94.5 11.05
389.6
32.26
14.69
60
65
2.94910 536.0 0.04296 518.26 1487.09
2.02BB
4.8939
5.341 4.438
1.739
1028
396.0
90.1 11.25
376.4
33.47
13.37
65
70
331350 526.3 0.03787 545.04 1483.94
2.1054
4.8415
5.465 4.699
1.799
984 393.3
85.9 11.47
363.2
34.80
12.08
70
75
3.71050 516.2 0.03342 572.37 1479.72
2.1823
4.7885
5.610 5.001
1.870
940 390.1
81.9 11.70
350.2
36 30
10.83
75
80
4.14200 505.7 0.02951 600.34 1474.31
2.2596
4.7344
5.784 5.355
1.955
895 386.5
78.0 11.95
337.1
38.00
9.61
80
85
4.61000 494.5 0.02606 629.04 1467 53
2.3377
4.6789
5.993 5.777
2.058
848 382.5
74.2 12.23
324.1
39.95
8.44
85
90
5.11670 482.8 0.02300 65B.61 1459.19
2.4168 4.6213
6.250 6.291
2.187
800 377.9
70.5 1255
311.0
42.24
7.30
90
95
5.66430 470.2 0.02027 689.19 1449.01
2.4973
4.5612
6.573 6.933
2.349
751
372.7
66.8 12.91
297.9
44.99
6.20
95
100
6.25530 456.6 0.01782 721.00 1436.63
2.5797
48 36
4.4975
4.4291
4.3542
6.991 7.762
2.562
701 367.0
63.2 13.32
284.8
5.15
100
105
6.89230 441.9 0.01561 754.35 1421.57
2.6647
7.555 8.877 2.851
649 360.5
59.6 13.82
271.5
52.65
4.15
105
110
7.57830 425.6 0.01360 789.68 1403.08
2.7533
56.0 14.42
8.360 10.46
9.630 12.91
3.26
594 3533
258.1
58.33
3.20
110
115
831700 407.2 0.01174 827.74 1379.99
2.8474
4.2702
3.91
538 345.0
52.3 15.19
244.6
66.28
2.31
115
120
9.11250 385.5 0.00999 869.92 1350.23
2.9502
4.1719 11.940 17.21
5.04
477
335.4
48.3 16.21
231.2
78.40
1.50
120
125
9.97002 357.8 0.00828 919.68 1309.12
3.0702
4.0483
17.660 27.00
7.62
411
3236
43.8 17.73
219.1 100.01
0.77
125
130
10.89770 312.3 0.00638 992.02 1239 32
3.2437 3.8571
54.210 76.49 20.66
334 306.6
37.3 20.63
221.9
160.39
0.18
130
132.25 11.33300 225.0 0.00444 1119.22 1119.22 3.5542 3.5542
0.0
0.00
132.25
*Temperatures on ITS-90 scale
"Triple point
Nomal boiling point
"Critical point
Transcribed Image Text:Pevap=4 bar, Pcond=20 bar, Qevap=6 kW, p6= 8.9 bar
Refrigerant ( ammonia (R717) ) leaves the condenser as saturated liquid and as saturated vapor
from the evaporator. Compression process in the compressor is isentropic.
A) Based on the simple vapor-compression refrigeration cycle below, determine the compressor
power and COP.
Condenser
3
Evaporator
### Plot the T-s and P-h diagrams for options A
Licensed for single user. © 2009 ASHRAE, Inc.
-200
40
200
400
600
800
1000
1200
1400
1600
R-717
1800
2000
2200
2400
40
(ammonia)
20
Reference state:
h- 200.0 kg. 1.00 kJjko KI
for saturated kquid at OC
350
300
150
P: 100 kgm
80
200
10
20
60
8
120
6
40
10
100
30
4
8
80
20
6.
15
2
4
10
8.0
1
6.0
0.8
0.6
T= 20°C
4.0
1
0.8
3.0
0.4
20
0.6
1.5
0.2
0.4
1.0
0.80
0.1
0.2
0.60
0.08
0.06
0.40
0.1
0.30
0.04
0.08
0.20
0.06
0.15
0.02
8.00
0.04
0.10
840 KJkg K)
0.080
0.02
0.01
-200
8.80
0.060
200
400
600
800
Properties computed with: NIST REFPROP
1000
1200
1400
1600
0.01
2400
1800
2000
version 7.0
2200
ENTHALPY, kJ/kg
Fig. 16 Pressure-Enthalpy Diagram for Refrigerant 717 (A mmonia)
Bosed on formulation of Tiner-Roth et al (1993)
PRESSURE, MPa
క్తిర్థి శ్డేక్
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
This is a popular solution!
Trending now
This is a popular solution!
Step by step
Solved in 2 steps with 3 images
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, mechanical-engineering and related others by exploring similar questions and additional content below.Recommended textbooks for you
Elements Of Electromagnetics
Mechanical Engineering
ISBN:
9780190698614
Author:
Sadiku, Matthew N. O.
Publisher:
Oxford University Press
Mechanics of Materials (10th Edition)
Mechanical Engineering
ISBN:
9780134319650
Author:
Russell C. Hibbeler
Publisher:
PEARSON
Thermodynamics: An Engineering Approach
Mechanical Engineering
ISBN:
9781259822674
Author:
Yunus A. Cengel Dr., Michael A. Boles
Publisher:
McGraw-Hill Education
Elements Of Electromagnetics
Mechanical Engineering
ISBN:
9780190698614
Author:
Sadiku, Matthew N. O.
Publisher:
Oxford University Press
Mechanics of Materials (10th Edition)
Mechanical Engineering
ISBN:
9780134319650
Author:
Russell C. Hibbeler
Publisher:
PEARSON
Thermodynamics: An Engineering Approach
Mechanical Engineering
ISBN:
9781259822674
Author:
Yunus A. Cengel Dr., Michael A. Boles
Publisher:
McGraw-Hill Education
Control Systems Engineering
Mechanical Engineering
ISBN:
9781118170519
Author:
Norman S. Nise
Publisher:
WILEY
Mechanics of Materials (MindTap Course List)
Mechanical Engineering
ISBN:
9781337093347
Author:
Barry J. Goodno, James M. Gere
Publisher:
Cengage Learning
Engineering Mechanics: Statics
Mechanical Engineering
ISBN:
9781118807330
Author:
James L. Meriam, L. G. Kraige, J. N. Bolton
Publisher:
WILEY