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Mechanical Engineering - Heat Transfer, Refrigeration and Air Conditioning - Discussion

Discussion Forum : Heat Transfer, Refrigeration and Air Conditioning - Section 1 (Q.No. 7)
Heat Transfer, Refrigeration and Air Conditioning
7.
The formation of frost on cooling coils in a refrigerator
increases heat transfer
improves C.O.P. of the system
increases power consumption
reduces power consumption
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
14 comments Page 2 of 2.
Pradeep gk said:   8 years ago
Frost is a formation of ice particles on evaporator coil.
Mohd Raza said:   8 years ago
Frost is heat barrier for heat transmission in evaporator coil due to which power is required more for same work.
Kaustubh said:   7 years ago
Frost becomes an obstruction for heat flow. That results in increase in power consumption for getting same amount of cooling.
Pradeep Sharma said:   5 years ago
Refrigerant will flow hardly in cooling coils so increase power consumption.
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