Title |
A Study on the Component Performance for Automotive Air Conditioner |
Keywords |
Automotive air conditioner ; 자동차용 에어컨 ; Evaporator ; 증발기 ; Condenser ; 응축기 ; Compressor ; 압축기 ; Expansion valve ; 팽창밸브 ; Heat transfer ; 열전달 ; Pressure drop ; 압력강하 |
Abstract |
For successful design of component, performances of one-tank plate type evaporator, gas-liquid separation type condenser, swash plate type compressor and thermostatic expansion valve for automotive air conditioner are investigated experimentally. Heat transfer characteristics in the evaporator are examined by means of air temperature, relative humidity, air volume flow, outlet refrigerant pressure and superheat, and heat transfer characteristics in the condenser are examined by means of air temperature, air velocity and inlet refrigerant pressure. Pressure drops for both evaporator and condenser are measured and empirical correlations are derived. Volumetric efficiencies and isentropic efficiencies for two types of compressors with different capacity are measured and compared. Thermostatic expansion valve is tested to investigate the pressure variation according to temperature changes. |