The distributions of the crucial parameters, e.g., temperature, pressure, gas concentration and density, in a molten carbonate fuel cell (MCFC) stack have a major impact on its safe and efficient operation. We try to attack the problem by developing a three-dimensional MCFC stack model based on physical laws using the computational-fluid-dynamics (CFD) technique. More specifically, the model has been implemented in the CFD package PHOENICS (CHAM, 1995). The analysis of the'distributions under transient conditions is emphasized, futher, this paper is confined to the modeling an MCFC stack without internal reforming. Throughout the paper, the term 'fuel cell' refers to MCFC without internal reforming.

0 0

Post a comment