Tuesday, February 14, 2023

Dr. A.P.J. Abdul Kalam University MTECH II SEM (MTTPE) Advance Refrigeration System [MTTPE203] June 2021 Question Paper

Dr. A.P.J. Abdul Kalam University

Master of Technology

Second Semester Examination, June-2021

Advance Refrigeration System [MTTPE203]

Time: 3:00 Hrs Max Marks 70

Note : Attempt any five questions out of eight.

All questions carry equal marks.

Q.1 What arc the different types of heat transfer resistance in water

cooled condensers? flow is the total resistance related to the heat

transfer? What are natural refrigerant. Discuss their potential and

limitations.

Q.2 Explain the working of an Actual vapour compression refrigeration

cycle with the help of p-h and T.

-S diagram.

Q.3 Discuss different types of compressors used in refrigeration system

with neat sketch?

Q.4 Explain with the help of neat sketch an externally equalized

thermostatic expansion valve.

Q.5 Write a detailed note on refrigerant absorbent pair for vapor

absorption refrigeration system.

Q.6 Explain the working of the heat pump when used for the

following purposes:

(a) Concentrating the juice and

(b) Desalination of sea water.

Q.7 Explain the constructional features of flooded type evaporator.

Q.8 Write Advantage of multi-pressure system.

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