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Measurement and Analysis of Showcase Field Data  

Shin You-Hwan (Thermal/Flow Control Research Center, KIST)
Oh Wang-Kyu (Thermal/Flow Control Research Center, KIST)
Park Ki-Ho (Thermal/Flow Control Research Center, KIST)
Kim Youngil (Department of Energy System Engineering, Chungju University)
Shin Younggy (Mechanical Engineering Department, Sejong University)
Publication Information
Korean Journal of Air-Conditioning and Refrigeration Engineering / v.17, no.5, 2005 , pp. 436-443 More about this Journal
Abstract
Experimental study was performed to understand the operation of an on-site showcase working in a super discount store. Inlet and outlet temperatures of evaporator, condenser, expansion valve and compressor were measured for both air and refrigerant sides. Electric power consumption of compressors, defrosting heaters, cooling water pumps and etc. were measured. The operating characteristics of the showcase system under various working conditions were analyzed and discussed. During the defrosting process, the air temperature inside the showcase increased to $15^{\circ}C$, which gave harmful effect to the frozen food. The collected data will serve as valuable information for diagnosing and improving the performance of showcases.
Keywords
Supply air temperature; Return air temperature; Expansion valve; Evaporator; Condenser; Defrost;
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  • Reference
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