Dynamic Analysis for Stacked Molten Carbonate Fuel Cell by Use of a Rigorous Mathematical Model

JOURNAL OF CHEMICAL ENGINEERING OF JAPAN

Shunichiro Ueno¹  Shigeru Matsumoto¹  Masatoshi Yoshida¹ 

[1] Department of Chemical Engineering, Tohoku University

关键词: Fuel Cell;    Dynamic Behavior;    Rigorous Modeling;   

DOI  :  10.1252/jcej.36.297

来源: Maruzen Company Ltd

【 摘 要 】

References(6)A rigorous numerical model is developed to simulate the dynamic performance of a stacked molten carbonate fuel cell with commercially realistic dimensions. The model takes account of gas stream utilization due to electrochemical reaction, conductive heat transfer between cell hardware and gas streams, energy transfer accompanying mass addition to the bulk streams, and in-plane heat conduction through the cell hardware. The over-potential is calculated using the resistance as a function of temperature and composition of chemical species from literature. It is shown that for a step increase in the current load the output voltage falls at once to a considerable degree and then gradually recovers to the steady state level. The sluggishness of the response is mainly due to the slow dynamics of cell temperature. Therefore, control of cell temperature is necessary to stabilize the response of output voltage under varying current-load situations.

【 授权许可】

Unknown