| Title |
A Study on the Performance Analysis of Automotive Air Conditioning System |
| Keywords |
Automotive air conditioning system ; 자동차용 에어컨 ; Cabin room ; 차 실내 ; Heat load ; 열부하 ; COP ; 성능계수 ; Suction line ; 흡입배관 ; Compressor ; 압축기 |
| Abstract |
Performance analysis of the automotive air-conditioning system is conducted by using computer simulation, and performance tests are carried out by using the climate wind tunnel in order to verify simulation. Evaporator and condenser were modeled by using empirical correlation which was obtained from calorimeter data, and compressor was modeled by using map based method. The steady state thermodynamic conditions of refrigerant satisfying mass and energy balance were assumed in the simulation program for automotive air- conditioning system. The system performance was analyzed by finite difference method until differential air enthalpy between evaporator inlet and outlet becomes converged. Simulation results are in good agreement with experimental results at most operating conditions. Variation of discharge temperature and pressure of compressor, outlet temperature of evaporator, cooling capacity, and COP were investigated in term of air volume flow rate for evaporator, compressor capacity, compressor speed, superheat of thermostatic expansion valve, and diameter of suction line. |