A refrigerator using R-12 as the working fluid keeps the refrigerated space at 215C in an environment
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A refrigerator using R-12 as the working fluid keeps the refrigerated space at 215°C in an environment at 30°C. You are asked to redesign this refrigerator by replacing R-12 with the ozone-friendly R-134a. What changes in the pressure levels would you suggest in the new system? How do you think the COP of the new system will compare to the COP of the old system?
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Water as a refrigerant R718 is compared with some current natural R717 and R290 and synthetic refrig...View the full answer
Related Book For 
Fundamentals of Thermal-Fluid Sciences
ISBN: 978-0078027680
5th edition
Authors: Yunus A. Cengel, Robert H. Turner, John M. Cimbala
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