C. Determine the COP of this refrigerator for the working fluid R-134a.
C. Determine the COP of this refrigerator for the working fluid R-134a.
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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![2. An ideal refrigeration cycle that has a condenser temperature of 45°C and an evaporator temperature of
-15°C. Determine the COP of this refrigerator for the working fluid R-134a.
Equations:
Efficiency of a turbine:
Нааctual — H,
W,(actual)
W,(isentropic) H2isentropic – H1
2,ac
Efficiency of a compressor:
W,(isentropic) H2.isentropic – H1
W,(actual)
Нааctual — H
Rankine cycle efficiency:
Wnet
|Wturbine] – |Wpump|
dund
QH
Qboiler
COP of a refrigerator:
Q¿(heat absorbed from cold space)
||
Wc(work input to the compressor)](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F9ac5316d-e448-440b-a523-b9b0a7140d17%2F187e8b72-07f1-49b3-9ada-3bc2480481f3%2Fku5ox46_processed.jpeg&w=3840&q=75)
Transcribed Image Text:2. An ideal refrigeration cycle that has a condenser temperature of 45°C and an evaporator temperature of
-15°C. Determine the COP of this refrigerator for the working fluid R-134a.
Equations:
Efficiency of a turbine:
Нааctual — H,
W,(actual)
W,(isentropic) H2isentropic – H1
2,ac
Efficiency of a compressor:
W,(isentropic) H2.isentropic – H1
W,(actual)
Нааctual — H
Rankine cycle efficiency:
Wnet
|Wturbine] – |Wpump|
dund
QH
Qboiler
COP of a refrigerator:
Q¿(heat absorbed from cold space)
||
Wc(work input to the compressor)
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