In this study, optimizations were carried out for a heater core and an evaporator installed in a passenger car. The main geometric parameters of each component were selected as design variables, and the main performances examined were the outlet temperature and the pressure drop. In addition, the sensitivity analysis was performed to grasp the dominant design variable. The thermal flow analysis for each component was performed using the commercial program STAR CCM+. On the other hand, EasyDesign, a commercial program based on DOE and metamodel-based optimization, was used as an optimization tool. The optimized performances of the heater core were compared with performance target, and finally, the improved designs of the heater and the evaporator were presented.

ABSTRACT
1. 서 론
2. 히터 코어의 최적화
    2.1 히터 코어의 초기 설계 및 해석 모델
    2.2 설계변수의 선정 및 목적함수의 정의
    2.3 최적화 결과
3. 증발기의 최적화
    3.1 증발기의 초기 설계 및 해석 모델
    3.2 설계변수의 선정 및 최적화
4. 결 론
References

• 김대업(Department. of Automotive Engineering, Yeungnam University) | Dae-Eop KIM Corresponding Author
• 서왕벽(Yeungnam University, School of Mechanical Engineering) | Wang-Byuck Suh