A Experimental Study of a Cogeneration System of a PEM Fuel Cell

• Main Authors: Meng-lin Chou, 鄒孟霖
• Other Authors: none
• Format: Others
• Language: zh-TW
• Published: 2009
• Online Access: http://ndltd.ncl.edu.tw/handle/17435924715539350531

碩士 === 國立臺南大學 === 綠色能源科技研究所碩士班 === 97 === The purpose of this thesis is to design, fabrication, and testing a prototype of a PEM fuel cell co-generator of high-quality electricity and hot water. The first task to build the subsystems of the fuel cell co-generator, including hydrogen supply subsystem, air supply and humidifier subsystem, and regeneration associated with temperature control subsystem, etc. Then, a microcontroller of the co-generator is developed and integration of the fuel cell co-generator is completed. Meanwhile, optimal control strategies for operation of the co-generator are proposed. Finally, parametric studies on the dynamic behaviors and efficiencies of the co-generator are presented, including load level, load profile, and recovery temperature. Results showed that, the maximum in electric efficiency, heat recovery efficiency, and combined heat and power efficiency are up to 43%, 52%, and 85%, respectively. The present co-generator that provides high-quality electricity and hot water is suitable in the residential and commercial use. In addition, the results obtained by the present thesis about the fuel cell co-generator is helpful in developing the low CO2-emission generator that can resolve the greenhouse effect caused by conventional generation.