http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
주원석(Wonseok Joo),권대복(Daebok Kwon),조경석(Kyungseok Cho),박창호(Changho Park) 한국자동차공학회 2011 한국자동차공학회 부문종합 학술대회 Vol.2011 No.5
Fuel Cell Stack generates enormous heats in the electrochemical process. Generally, the fuel cell stack operates well at a temperature around 65℃ which is lower than the internal combustion engine in the PEMFC vehicle. By using the engine cooling simulation program, we found that the minimum heat capacity of the stack cooling module and air-flow of the fan. The minimum airflow would be 7000 CMH for the 35㎾ of the heat from the stack. We had developed high voltage BLDC motor with controller and high efficiency heat exchanger to solve the problem. But, the Noise of stack cooling fan is very higher than that of ICE vehicle. so, it is necessary to reduce the noise of fan for application to vehicle. This study will present the improvement process of the Stack Radiator which increases the heat capacity and reduces the noise of cooling fan. In the first stage of development we conduct computer simulation including structure analysis. We made the prototype of the cooling module through the results of simulation. Then the performance test was conducted. The results of calorimeter test show that the developed cooling module meets the severe requirements reducing the noise of the cooling fan.