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

Discussion Forum : Heat Transfer, Refrigeration and Air Conditioning - Section 2 (Q.No. 2)
2.
The water, alcohol and ammonia have same refrigerating effect at different altitudes.
Yes
No
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
5 comments Page 1 of 1.

Sami said:   6 years ago
Yes, am understand thank you.

Muhammad Waqas said:   9 years ago
The refrigerant inside of a refrigeration system is in its own "artificial" closed atmosphere maintained by a compressor. So altitude would have no effect.

The surrounding temperature would effect the performance of the system but I've never heard of the altitude effecting the system.

Mukesh said:   10 years ago
Critical temperature means liquefy the gaseous up-to 374 degree centigrade. No mater if water goes beyond 374 will not affect to convert liquefy gas.

Sandy said:   1 decade ago
By varying the pressure the freezing point can also be changed. So in case of different altitudes the same refrigerating could be possible. For example water is used as a refrigerant in var system.

Adarsh said:   1 decade ago
Because refrigerating effect depend on the critical temperature of substance such as freezing point.

Water critical temperature = 375.16k.

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