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환경변화에 따른 핀-관, PF 열교환기 적용 공조기 성능 특성 실험 연구
박경만(K.M. Park),엄유식(U.S. Um),권영철(Y.C. Kwon),이상재(S.J. Lee) 대한설비공학회 2009 대한설비공학회 학술발표대회논문집 Vol.2009 No.-
In the present study, performance characteristics on environment change of A/C applied fin-tube and PF heat exchangers were experimentally investigated. Capacity and COP changing an outlet air velocity, an indoor/outdoor temperature and a relative humidity were obtained. Air-enthalpy calorimeter was used. As the air velocity, indoor temperature and relative humidity increase, capacity and COP increase. PF A/C has smaller refrigerant weight than the fin-tube A/C. The performance of PF-2 A/C with the squarer fin was more excellent than that of PF-1 A/C with the triangler fin.
엄유식(Y.S. Um),서동남(D.N. Seo),박경만(K.M. Park),이상재(S.J. Lee),김대훈(D.H. Kim),권영철(Y.C. Kwon) 대한설비공학회 2008 대한설비공학회 학술발표대회논문집 Vol.2008 No.2
In the present study, the air-side heat transfer and pressure drop characteristics of the fin-tube and PF heat exchangers have been experimentally investigated under the cooling standard condition. Fin type of PF heat exchanger is a triangler and squarer form. The experimental data of the slit fin-tube and two kinds of PF heat exchangers are measured using the air-enthalpy calorimeter and the constant temperature water bath. As the inlet air velocity increases, the heat transfer rate and pressure drop of the heat exchanger increased. The heat transfer rate and pressure drop of PF-2 heat exchanger of the squarer fin is larger than that of PF-1 heat exchanger of the triangler fin. As the inlet air temperature increases, the heat transfer rate decreases and the pressure drop is nearly uniform.
서동남(D.N. Seo),엄유식(Y.S. Um),박경만(K.M. Park),이상재(S.J. Lee),김대훈(D.H. Kim),권영철(Y.C. Kwon) 대한설비공학회 2008 대한설비공학회 학술발표대회논문집 Vol.2008 No.2
In the present study, the cooling performances of the air-conditioner applied the fin-tube and aluminum PF heat exchangers have been experimentally investigated by using the calorimeter. The experiment is carried out in the conditions of the standard temperature and the low temperature. Fin type of PF heat exchanger is a triangler and squarer form. PF heat exchanger has smaller refrigerant weight and larger capacity and COP than the fin-tube heat exchanger. The performance of PF-2 heat exchanger with the squarer fin is more excellent than that of PF-1 heat exchanger with the triangler fin. The high pressure of PF heat exchanger decreases about 7%, compared to the fin-tube heat exchanger. Also, CSPF of the fin-tube and PF heat exchanger is evaluated.