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The Effects of the Refrigerant Charge on the Performance of an Air Conditioner with Capillary Tube Expansions  

최은수 (명지대학교 기계공학부)
김종배 (명지대학교 대학원)
Publication Information
Korean Journal of Air-Conditioning and Refrigeration Engineering / v.14, no.5, 2002 , pp. 359-364 More about this Journal
Abstract
A popular type of residential air conditioner is the split system which has two separate units: indoor and outdoor units During field installation of the split system, the potential exists for not setting the charge exactly to the manufacturer´s specifications. The objective of this study is to investigate the effects of the refrigerant charge on the performance of the air conditioner. An air conditioner with capillary tube expansions was tested for various refrigerant charges. The results indicated that the more charge resulted in the more flowrate of the refrigerant. The flowrate of the refrigerant was one of the most important factors to understand the e(sects of the charge on the performance of the air conditioner with capillary tube expansions. Under-charge results in wide region of superheated vapor of the refrigerant in the evaporator, while over-charge results in high temperature of the liquid refrigerant in the evaporator.
Keywords
Refrigerant charge; Capillary tube expansion; Flowrate of refrigerant; Cooling capacity; Split type;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
1 System performance characteristics of air conditioner over a range of charging conditions /
[ Farzad M.;O'Neal D.L ] / Int.J.Refrig
2 Computational simulation for the performance analysis of automobile air conditioning system /
[ Lee G.H.;Yoo J.Y.;Jung J.D.;Choi K.H. ] / Korean J. of Air-Conditioning and Refrigeration Eng.   과학기술학회마을
3 /
[ Althouse A.D.;Turnquist C.H.;Bracciano A.F. ] / Modern refrigeration and air conditioning