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A Study on the Decrease of Compressor Discharge Temperature Using Subcooling Bypass Technology  

Kwak, Kyung-Min (Department of Mechanical Engineering, Yeungnam University)
Bai, Cheol-Ho (Department of Mechanical Engineering, Yeungnam University)
Publication Information
Korean Journal of Air-Conditioning and Refrigeration Engineering / v.21, no.6, 2009 , pp. 326-332 More about this Journal
Abstract
The purpose of the study is to decrease the refrigerant temperature at the outlet of the compressor under high thermal load conditions for air cooled vapor compression refrigeration system. The subcooling bypass line called subcooling bypass technology(SBT) is installed to the window type A/C system to investigate the performance test. The standard air calorimeter test method is applied to measure the refrigerant temperature at the outlet of the compressor, cooling capacity, power consumption, and system EER. The refrigerant temperature at the outlet of the compressor decreases as the bypass rate increases. When the bypass rate is 8.2%, the refrigerant temperature at the outlet of the compressor decreases $2.8^{\circ}C$ while the cooling capacity and EER are the same as the conventional A/C unit.
Keywords
Subcooling bypass technology(SBT); Discharge Temperature; EER; Bypass rate;
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