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냉각수를 이용한 흡기ㆍ예열식 연료전지 중공사막 가습에 관한 연구
이호열(Hoyeol Lee),오병수(Byeongsoo Oh) 한국자동차공학회 2004 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
Polymer membrane needs to maintain appropriate moisture. Insufficient moisture causes low conduction of hydrogen ion because of increased contact resistance between electrode and membrane by shrinking membrane, excessive moisture decreases fuel cell performance because of difficulty of reacting gas diffusion. Therefore, water controlling system is very much consequential for the polymer membrane fuel cell. If hollow fiber membrane humidification is used between fuel and air line, it is possible to supply heat to fuel and air by using thermal exchanger. It can supply appropriate humidity which depends on operating temperature and can recover heat from exhaust gas which contains water vapor and air. Because of simple structure of humidification system without any dummy equipment, this humidification can be easily applied in the PEMFC and cut down the cost.
이호열(Hoyeol Lee),정영균(YoungKyun Jung),정진택(Jintaek Jung),박상훈(Sanghoon Park),오병수(Byeongsoo Oh) 한국자동차공학회 2004 한국자동차공학회 지부 학술대회 논문집 Vol.- No.-
In order to solve the air pollution caused by internal combustion engine and the energy exhaustion problem. There are many researching to overcome this problem. Fuel cell is a device to convert the chemical energy of fuel into electric energy. Hence. Fuel cell can obtain higher efficiencies than combustion engine. The low emission of pollutants and high electric conversion efficiency make this one of the most promising candidates for a very wide range of energy sources, to electric vehicles. In this paper hybrid system which is consist of PEM fuel cell and battery was tested. When this system need drive torque. battery did that work, and PEM fuel cell power was used to drive the car with constant speed.<br/> <br/>