An ammonia refrigeration plant operates between a condensing temperature of 40°C and an evaporating temperature of –10°C. The vapour is dry at the end of compression. Only the following property values are given: 8. °C kJ/kg kJ/kg kJ/kg.K 40°C 371.5 1473 1.36 |-10°C 135.4 1433 0.544 The specific heat of NH3 vapour is 2.1897 kJ/kg.K. Calculate the theoretical coefficient of performance of the cycle.

An ammonia refrigeration plant operates between a condensing temperature of 40°C and an evaporating temperature of –10°C. The vapour is dry at the end of compression. Only the following property values are given: 8. °C kJ/kg kJ/kg kJ/kg.K 40°C 371.5 1473 1.36 |-10°C 135.4 1433 0.544 The specific heat of NH3 vapour is 2.1897 kJ/kg.K. Calculate the theoretical coefficient of performance of the cycle.

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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Question

An ammonia refrigeration plant operates between a condensing temperature
of 40°C and an evaporating temperature of –10°C. The vapour is dry at the
end of compression. Only the following property values are given:
8.
°C
kJ/kg
kJ/kg
kJ/kg.K
40°C
371.5
1473
1.36
|-10°C
135.4
1433
0.544
The specific heat of NH3 vapour is 2.1897 kJ/kg.K. Calculate the theoretical
coefficient of performance of the cycle.

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