Q4: A simple refrigeration unit works with R-22 as a refrigerant. Refrigeration capacity 20 Kw has the following data; evaporation temperature of -10 °C, condensing temperature of 40 °C. Heat exchanger is used in liquid line and the vapor is superheated 10 °C before entering the compressor. Determine; i) heat rejected from condenser, ii) flash gas fraction, iii) work done if the compression cycle is constant entropy, iv) C.O.P.

Q4: A simple refrigeration unit works with R-22 as a refrigerant. Refrigeration capacity 20 Kw has the following data; evaporation temperature of -10 °C, condensing temperature of 40 °C. Heat exchanger is used in liquid line and the vapor is superheated 10 °C before entering the compressor. Determine; i) heat rejected from condenser, ii) flash gas fraction, iii) work done if the compression cycle is constant entropy, iv) C.O.P.

Refrigeration and Air Conditioning Technology (MindTap Course List)

8th Edition

ISBN:9781305578296

Author:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Publisher:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Chapter40: Typical Operating Conditions

Section: Chapter Questions

Problem 4RQ: A typical temperature relationship between a high-efficiency condenser and the ambient temperature...

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