Mechanical Engineering - Heat Transfer, Refrigeration and Air Conditioning - Discussion
Discussion Forum : Heat Transfer, Refrigeration and Air Conditioning - Section 8 (Q.No. 5)
5.
The lowest temperature during the cycle in a vapour compression system occurs after
Discussion:
25 comments Page 3 of 3.
Asif ahamed said:
9 years ago
In VCR system if we observed in H-S and T-S diagram lowest temperature point is point 4 i.e. after expansion. So the answer is after expansion because after evaporation the condition of refrigerant is saturated vapor then how will be the lowest temperature after evaporation?
Punit Vyas said:
1 decade ago
@Pranesh.
But during evaporation refrigerant takes latent heat so temp will be raised. So answer will be expansion.
But during evaporation refrigerant takes latent heat so temp will be raised. So answer will be expansion.
Pranesh said:
1 decade ago
The temperature after expansion and after evaporation remains same since after expansion, evaporation occurs at constant temperature.
Faisal Ahmad said:
1 decade ago
I think Mr Venkat Sri is right the lowest temperature in refrigeration cycle occurs after Expansion or Throttling.
Venkat sri said:
1 decade ago
In general the lowest temperature in any refrigeration cycle is occur after the EXPANSION process only. But in the answer mentioned that is after evaporation.
In the process of evaporation the refrigerant collect latent heat from bodies.
In the process of evaporation the refrigerant collect latent heat from bodies.
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