Q31 An ideal vapor-compression refrigeration cycle works on R-12 and operates between (42 °C and -5C saturation conditions). the exit of the compressor (h₂) is at superheated conditions at 390 kPa and entropy S = 1.562 kJ/kg.K. 1- Draw the cycle on T-S diagram. 2- Calculate the refrigeration effect. 3- The heat removed to the environment. h2 S2 P2 12 P2= R3 51=32 17 marks) 4- The work supplied to the compressor. 52 = 5.1. R
Q31 An ideal vapor-compression refrigeration cycle works on R-12 and operates between (42 °C and -5C saturation conditions). the exit of the compressor (h₂) is at superheated conditions at 390 kPa and entropy S = 1.562 kJ/kg.K. 1- Draw the cycle on T-S diagram. 2- Calculate the refrigeration effect. 3- The heat removed to the environment. h2 S2 P2 12 P2= R3 51=32 17 marks) 4- The work supplied to the compressor. 52 = 5.1. R
Refrigeration and Air Conditioning Technology (MindTap Course List)
8th Edition
ISBN:9781305578296
Author:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson
Publisher:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson
Chapter28: Special Refrigeration Applications
Section: Chapter Questions
Problem 15RQ: Why is two-stage compression popular for extra-low-temperature refrigeration systems?
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![Q31 An ideal vapor-compression refrigeration cycle works on R-12 and operates between
(42 °C and -5C saturation conditions). the exit of the compressor (h₂) is at
superheated conditions at 390 kPa and entropy S = 1.562 kJ/kg.K.
1- Draw the cycle on T-S diagram.
2- Calculate the refrigeration effect.
3- The heat removed to the environment.
h2
S2 P2
12
P2= R3
51=32
17 marks)
4- The work supplied to the compressor. 52 = 5.1.
R](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F4403ffcd-9bfd-415c-bc52-6273066ff721%2F53f18d87-4e7e-4060-b627-8f3166b419d7%2Frqvux9m_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Q31 An ideal vapor-compression refrigeration cycle works on R-12 and operates between
(42 °C and -5C saturation conditions). the exit of the compressor (h₂) is at
superheated conditions at 390 kPa and entropy S = 1.562 kJ/kg.K.
1- Draw the cycle on T-S diagram.
2- Calculate the refrigeration effect.
3- The heat removed to the environment.
h2
S2 P2
12
P2= R3
51=32
17 marks)
4- The work supplied to the compressor. 52 = 5.1.
R
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