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

Discussion Forum : Heat Transfer, Refrigeration and Air Conditioning - Section 8 (Q.No. 14)
14.
The refrigerant used in small-tonnage commercial machines (hermetically sealed units) is
ammonia
carbon dioxide
sulphur dioxide
R-12
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
4 comments Page 1 of 1.

Goutam Behera said:   10 months ago
Clear explanation, thank you @Vijay.

ANIL PANDEY said:   7 years ago
SO2 for small tonnage machine.

Anurup said:   8 years ago
Small tonnage means how much TR here?

Mention the limitation of the tonnage limits.

Vijay said:   8 years ago
R-12 for domestic purpose.
Ammonia for industrial purpose.
And, so2 for small base machine.

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