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The Study on Performance Characteristics of $NH_3$ Refrigeration System for Various Degree of Superheat - Part II : The Change of Heat Exchanger Type -  

Ha Ok-Nam (Department of Mechanical Engineering, Chosun University)
Kwon Il-Wook (Department of Mechanical Engineering, Chosun University)
Jeon Sang-Sin (Department of Mechanical Engineering, Chosun University)
Lee Seung-Jae (Department of Mechanical Engineering, Chosun University)
Jung Song-Tae (Department of Mechanical Engineering, Chosun University)
Ha Kyung-Soo (Graduate School, Department of Mechanical Engineering, Chosun University)
Yun Kab-Sig (Polytechnic College, Industrial-Educational Cooperation)
Lee Jong-In (Department of Automobile, Chosun College of Science & Technology)
Hong Kyung-Han (DAEWOO Electronics Co.)
Publication Information
Korean Journal of Air-Conditioning and Refrigeration Engineering / v.17, no.4, 2005 , pp. 297-302 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 of $NH_3$ refrigeration system by the superheat control for improving the energy efficiency. The experiments are carried out for the condensing pressure of refrigeration system from 1,500 kPa to 1,600 kPa and for degree of superheat from $0^{\circ}C\;to\;10^{\circ}C$ at each condensing pressure. As a result of experiment, when the degree of superheat is $0^{\circ}C$ at each condensing pressure, the refrigeration system has the highest performance.
Keywords
CFC; HCFC; Degree of superheat; Condensing pressure;
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