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The Study on Performance Characteristics of Superheating the Suction Vapor in $NH_3$ Refrigeration System  

권일욱 (조선대학교 대학원 기계공학과)
하옥남 (조선대학교 기계공학과)
Publication Information
Korean Journal of Air-Conditioning and Refrigeration Engineering / v.16, no.8, 2004 , pp. 756-761 More about this Journal
Abstract
Since the use of CFC and HCFC refrigerants are to be restricted due to the depletion of ozone layer, this experiment applies the NH$_3$ gas to study the performance characteristics from the superheat control for improving the energy efficiency. The experiments are carried out for the condensing pressure of refrigeration system from 14.5 bar to 16.0 bar by 0.5 bar and for superheat temperature from $0^{\circ}C$ to 1$0^{\circ}C$ by 1$^{\circ}C$ at each condensing pressure. As a result of experiment, when the superheat temperature is 1$^{\circ}C$ at each condensing pressure, the refrigeration system has the highest performance.
Keywords
CFC; HCFC; Superheat temperature; Condensing pressure;
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