60 tons R-22 refrigeration system has an evaporator temp.of -4°C and a condenser temp. of 30C.Find the compressor power. at 30C:hf=236.664 kJ/kg-K at-4°℃:hf=195.335 kJ/kg-K;hg=403.876 kJ/kg-K;enthalpy at condenser entrance is 430 kJ/kg-K

60 tons R-22 refrigeration system has an evaporator temp.of -4°C and a condenser temp. of 30C.Find the compressor power. at 30C:hf=236.664 kJ/kg-K at-4°℃:hf=195.335 kJ/kg-K;hg=403.876 kJ/kg-K;enthalpy at condenser entrance is 430 kJ/kg-K

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

Chapter48: Cooling Towers And Pumps

Section: Chapter Questions

Problem 13RQ

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Question

A 60 tons R-22 refrigeration system has an evaporator temp.of -4°C and a condenser temp. of 30C.Find the compressor power. at 30C:hf=236.664 kJ/kg-K at-4°℃:hf=195.335 kJ/kg-K;hg=403.876 kJ/kg-K;enthalpy at condenser entrance is 430 kJ/kg-K

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