자동차 엔진 방열기의 냉각 성능 및 방열 면적 예측에 관한 연구

To maintain the reasonable temperature in the engine is very important to keep the steady com, bustion state of engine and to prevent increasing of lubricant consumption, deteriorating of lubri-cant, shortening of the life time of engine and decreasing of material strength. The method of energy balance for devided elements of radiator is considered to analyse the performance of radiator. The data of engine test and vehicle cooling tunnel test are applied to pro-gram for calculation of radiator outlet temperature, and this result is compared with outlet temperature of vehicle cooling tunnel test. As a result, the radiator outlet temperature by numerical analysis agrees well with that by experiment. It is concluded that this simulation program is available in developing the cooling system for a new car.