Electroforming flow field analysis for various size polar-plate flow channel

• Main Authors: WANG SZU-HUNG, 王世宏
• Other Authors: LI CHING-CHUNG
• Format: Others
• Language: zh-TW
• Published: 2006
• Online Access: http://ndltd.ncl.edu.tw/handle/78877794127250610701

碩士 === 國防大學中正理工學院 === 兵器系統工程研究所 === 94 === When the earth resource is exhausted gradually, the fuel cell is low, with high efficiency in pollution, is the potential future alternative energy source. The reusable characteristic, certainly will replace the existing traditional battery, apply to every electronic product extensively, but first it needs to overcome the problem after miniaturize the volume. Besides dispelling the heat, important component of fuel cell that “polar plate” cooperate after miniaturization to manufacture, Electroforming is quite suitable for the processing method of the development trend in the future. Though the polar plate of fuel cell is not high aspect ratio, but its multiple size specification and porous array characteristic, all influence the efficiency of the electroforming’s depositting. For rapid produce and perfect quality, how to find out every factor that influence the efficiency of the electroforming’s depositting, and then understand the degree that every parameter influences. It can be found through the numerical simulation of the computer, the characteristic of low aspect ratio in polar plate of fuel cell, “aperture distance / aperture” ratio have the limited in influence in fluid field. The “aperture distance / aperture” ratio can be neglected in the polar plate design, there is more design space. And the exchange of the electroforming liquid is better obviously when aspect ratio is low, in the polar plate design, should consider more. On the porous array characteristic, it is too too high to have essence help in rotational speed to negative pole plate, cooperate with the size specification to be different, to manufacture with low rotational speed, not merely save the cost, and can promote the quality of the products, after the polar plate to miniaturize in the future, the influence of the porous array can be neglected, let the design space be more broad. Hope with this research finally, contribute to electroforming procedure of fuel cell polar plate is it make development of technology, energy is it can benefit to some extent to develop in future.