(b) Determine the cooling load (q₁), heat rejection (q) and actual compressor work input (w) per unit mass in kJ/kg. . C. (c) Calculate the coefficient of performance (COP) of this actual refrigeration cycle and compare it with the COP of a reversed Carnot cycle for refrigeration if used under the same inside and outside amblent temperatures. Problem 3 (A residential refrigerator is used to steadily maintain a cool and comfortable Inside space at 20°Cfrom the outside ambient at 35°C in the morning of a summer day In Tempe, AZ. The refrigeratoroperates on the actual vapor-compression refrigeration cycle with R-134a as the refrigerant,which experiences the pressure change from 1 MPa In the condenser to 100 kPa in theevaporator. The compressor has Isentropic efficiency of 80%, while the refrigerant is saturatedvapor at the compressor Inlet and saturated liquid at the exit of condenser.251 MPa3A100 kPa1ТА2aOutside ambient at TH=35°CqHCondenser3EvaporatorCompqLInside at T₁-20°C2a1Win --and at T.=20c(a) Find the specific enthalpy in kJ/kg at every state within the cycle. Show the work and fill InNote: use the closest values from the propertythe table with the found values.tables without linear interpolation.State Specific enthalpy h (ki/kg)12s2a34

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Answered: A residential refrigerator is used to…

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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(b) Determine the cooling load (q₁), heat rejection (q) and actual compressor work input (w) per unit mass in kJ/kg. .

C. (c) Calculate the coefficient of performance (COP) of this actual refrigeration cycle and compare it with the COP of a reversed Carnot cycle for refrigeration if used under the same inside and outside amblent temperatures.

Problem 3 (
A residential refrigerator is used to steadily maintain a cool and comfortable Inside space at 20°C
from the outside ambient at 35°C in the morning of a summer day In Tempe, AZ. The refrigerator
operates on the actual vapor-compression refrigeration cycle with R-134a as the refrigerant,
which experiences the pressure change from 1 MPa In the condenser to 100 kPa in the
evaporator. The compressor has Isentropic efficiency of 80%, while the refrigerant is saturated
vapor at the compressor Inlet and saturated liquid at the exit of condenser.
25
1 MPa
3
A
100 kPa
1
ТА
2a
Outside ambient at TH=35°C
qH
Condenser
3
Evaporator
Comp
qL
Inside at T₁-20°C
2a
1
Win

--and at T.=20c
(a) Find the specific enthalpy in kJ/kg at every state within the cycle. Show the work and fill In
Note: use the closest values from the property
the table with the found values.
tables without linear interpolation.
State Specific enthalpy h (ki/kg)
1
2s
2a
3
4

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