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Development of an Automatic Refrigerant Charging Device for Refrigeration Applications  

김성수 (경희대학교 대학원)
윤희정 (경희대학교 대학원)
홍희기 (경희대학교 기계산업시스템공학부)
강용태 (경희대학교 기계산업시스템공학부)
Publication Information
Journal of Energy Engineering / v.12, no.4, 2003 , pp. 253-258 More about this Journal
Abstract
Manual type manifold gauge has been used for charging the refrigerant in the refrigeration systems. In this case, the refrigerant is released to the ambient during the hose-switching period. :he objectives of this study are to develop a novel automatic refrigerant charging system, and to quantify the effect of the automatic systems on the reduction of the non-condensable gas and the contamination of the compressor oil. The automatic charging system makes the pressure test, vacuum test, and refrigerant charging work very simple and easy because the charging hose does not have to be switched many times. It is found that the amount of water in the SiO$_2$and the compressor oil reduces to l/4 times of that for the manual type manifold gauge and the refrigerant is not released to the ambient at all when the automatic charging system is adopted.
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  • Reference
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