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Influence of the Secondary Fluid Flow Rate on the Performance of a GSHP System  

Lee, Jun-Yub (Graduate School of Mechanical Engineering, Korea University)
Chung, Jin-Taek (Department of Mechanical Engineering, Korea University)
Woo, Jung-Son (New and Renewable Energy Research Division, KIER)
Choi, Jong-Min (Department of Mechanical Engineering, Hanbat National University)
Publication Information
Korean Journal of Air-Conditioning and Refrigeration Engineering / v.22, no.10, 2010 , pp. 649-656 More about this Journal
Abstract
The aim of this study is to investigate the influence of the secondary fluid flow rate through GLHX on a GSHP system with vertical single U-tube type GLHXs. The COP of a GSHP system with large flow rate was lower than it with small flow rate due to large power consumption of ground loop circulating pump. It is suggested that the heat pump unit with high COP and low flow rate through the GLHX have to be selected in order to enhance the performance of the system and reduce the length of GLHX.
Keywords
GSHP; GLHX; COP; Flow rate; Load;
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