Abstract
This paper experimentally investigated the performances of an automotive air conditioning (AAC) system with the liquid-vapor separation micro-channel condenser (LSMC) and a common parallel flow micro-channel condenser (PFMC), respectively. The performances of the two systems were compared under nomal running condition of IMACA. The cooling capacity of the LSMC system was 5.18% higher than that of the PFMC and the EER value of the LSMC system was 3.73% higher than that of the PFMC. The further investigation on the performance of the two systems were measured under the outdoor dry bulb temperature varying from 29°C to 41°C while the indoor dry bulb and wet bulb temperature fixed at 27°C and 19.5°C. In addition, under the standard condition of IMACA, the thermodynamic performance of two systems under the condenser air face velocity varying from 1.5 to 4.5m/s was investigated. Compared with the PFMC system, the cooling capacity and EER of the LSMC system were improved by 1.79%∼8.49% and 1.43%∼7.18%, respectively.
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