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Performance Characteristics of a Bypass Two-Circuit Refrigeration System  

Kim, Ki-Youl (Department of Mechanical Engineering, Graduate School of Korea University)
Jung, Hae-Won (Department of Mechanical Engineering, Graduate School of Korea University)
Kim, Yong-Chan (Department of Mechanical Engineering, Korea University)
Publication Information
Korean Journal of Air-Conditioning and Refrigeration Engineering / v.21, no.6, 2009 , pp. 319-325 More about this Journal
Abstract
The purpose of this study is to investigate the performance characteristics of a bypass two-circuit refrigerator. A bench scale refrigeration system was designed and constructed to estimate possible performance improvement of the bypass two-circuit refrigerator. The experiments were conducted in the bench scale refrigeration system by varying capacity of the condenser and refrigerant charge amount with an adoption of a refrigerant storage vessel. The COPs of the bypass two-circuit refrigeration system in the refrigerator and freezer (RF)-mode and freezer(F) only-mode were increased by 10% and 17%, respectively, with increasing the capacity of the condenser. Besides, the COP of the system in the F only-mode was increased by 10% by adopting the refrigerant storage vessel.
Keywords
Bypass two-circuit cycle; Refrigerant charge; COP; Refrigerator;
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