Problem 6 The The refrigeration system using R-22 as refrigerant consists of 3 evaporators of capacities 30 TR, 20 TR and 10 TR with individual expansion valves and compressors. temperature in the 3 evaporators is to be maintained at -10°C, 5°C and 10°C respectively. The vapor leaving the evaporator is dry and saturated. The condenser temperature is 40°C and the liquid refrigerant leaving the condenser is sub cooled to 30°C. Assuming isentropic compression, find: a) Mass of refrigerant flowing through each evaporator, b) Power required to drive the system and c) COP of the system.

Problem 6 The The refrigeration system using R-22 as refrigerant consists of 3 evaporators of capacities 30 TR, 20 TR and 10 TR with individual expansion valves and compressors. temperature in the 3 evaporators is to be maintained at -10°C, 5°C and 10°C respectively. The vapor leaving the evaporator is dry and saturated. The condenser temperature is 40°C and the liquid refrigerant leaving the condenser is sub cooled to 30°C. Assuming isentropic compression, find: a) Mass of refrigerant flowing through each evaporator, b) Power required to drive the system and c) COP of the system.

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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Concept explainers

Strengthening of Alloys

Strengthening of the alloys is required as metals become weak due to various lattice defects, metal bonding phenomena. The strength of the metals is not enough for any mechanical work. The internal dislocations of any metals arise due to forming processes. Due to the movement of these dislocations, the metals are plastically deformed.

Question

Problem 6
The refrigeration system using R-22
refrigerant consists of 3 evaporators of capacities
30 ŤR, 20 TR and 10 TR with individual
expansion
temperature in the 3 evaporators is to be
maintained at -10°C, 5ºC and 10°C respectively.
The vapor leaving the evaporator is dry and
saturated. The condenser temperature is 40°C
and the liquid refrigerant leaving the condenser
is sub cooled to 30°C. Assuming isentropic
compression, find:
a) Mass of refrigerant flowing through each
evaporator,
b) Power required to drive the system and
c) COP of the system.
as
valves
and
compressors.
The

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