A standard VCRC working with R-22, operates between temperature limits of 7.2°C and 54.4°C. The heat required to be rejected 100 MJ/h. Determine: 1. The dryness fraction of refrigerant entering the evaporator. 2. The discharge temperature. 3. The piston displacement of the compressor. 4. The theoretical power of the compressor. 5. The C O.P. Density I Kg/m3 Cp g kJ/kg.K 0.7704 Temp. Pressure hl hg sl Cpl kJ/kg.K 1.19 V sg Bar kJ/kg kJ/kg kJ/kg.K m/kg 0.03796 0.03683 kJ/kg.K 1.03 °C 7 6.215 1257 208.3 407.5 1.741 1.193 1.461 8 6.409 1254 209.5 407.9 1.034 1.74 0.775 54 21.27 1062 0.01048 268.9 417.6 1.225 1.68 1.173 56 22.24 1052 0.00995 271.8 417.7 1.233 1.677 1.485 1.208
A standard VCRC working with R-22, operates between temperature limits of 7.2°C and 54.4°C. The heat required to be rejected 100 MJ/h. Determine: 1. The dryness fraction of refrigerant entering the evaporator. 2. The discharge temperature. 3. The piston displacement of the compressor. 4. The theoretical power of the compressor. 5. The C O.P. Density I Kg/m3 Cp g kJ/kg.K 0.7704 Temp. Pressure hl hg sl Cpl kJ/kg.K 1.19 V sg Bar kJ/kg kJ/kg kJ/kg.K m/kg 0.03796 0.03683 kJ/kg.K 1.03 °C 7 6.215 1257 208.3 407.5 1.741 1.193 1.461 8 6.409 1254 209.5 407.9 1.034 1.74 0.775 54 21.27 1062 0.01048 268.9 417.6 1.225 1.68 1.173 56 22.24 1052 0.00995 271.8 417.7 1.233 1.677 1.485 1.208
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
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Transcribed Image Text:A standard VCRC working with R-22, operates between temperature limits of 7.2°C and 54.4°C. The heat required to be rejected
100 MJ/h. Determine:
1. The dryness fraction of refrigerant entering the evaporator.
2. The discharge temperature.
3. The piston displacement of the compressor.
4. The theoretical power of the compressor.
5. The C O.P.
Cp g
kJ/kg.K
0.7704
Temp.
Density I
Kg/m3
Cpl
kJ/kg.K
kJ/kg.K
1.19
Pressure
hl
hg
kJ/kg
407.5
V
sl
sg
m/kg
0.03796
0.03683
Bar
kJ/kg
kJ/kg.K
1.03
°C
7
6.215
1257
208.3
1.741
1.193
1.461
6.409
1254
209.5
407.9
1.034
1.74
0.775
54
21.27
1062
0.01048
268.9
417.6
1.225
1.68
1.173
56
22.24
1052
0.00995
271.8
417.7
1.233
1.677
1.485
1.208
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