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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.
Prince said:   10 years ago
Due to the formation of frost, we need more RE for cooling the same refrigerator because of the fact that frost will act as an insulator.
Pradeep gk said:   9 years ago
Frost is a formation of ice particles on evaporator coil.
Mohd Raza said:   9 years ago
Frost is heat barrier for heat transmission in evaporator coil due to which power is required more for same work.
Pradeep Sharma said:   6 years ago
Refrigerant will flow hardly in cooling coils so increase power consumption.
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