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자동차 공조장치용 응축기에 대한 해석적 및 시험적 연구
양시영(S.Y.Yang),송영길(Y.K.Song),정승교(S.G.Jeung),원종근(J.K.Won) 한국자동차공학회 1998 한국자동차공학회 춘 추계 학술대회 논문집 Vol.1998 No.11_1
The purpose of this paper is to discribe the analytical and experimental approach to aid designing and developing the automotive air conditioning condensers. Some mathematical models of parallel flow condensers used in automotive air conditioning systems have been developed for the prediction of their performance under operating conditions. Using HFC-134a as refrigerant, heat rejection rate, pressure drops and outlet temperature are obtained for different air velocities and refrigerant mass flow rates. The agreement between the analytical solutions and experimental data is shown to be good. To know the characteristics of the performance for 6-different condensers was tested under same operating conditions. In this experiments, we have found that heat rejection rate and pressure drops can be described as 2nd order polynomial formulas of air velocitis and refrigerant mass flow rate. The data measured the performance in each condensers are useful for achieving optimum design of condenser geometries.<br/>