| 摘要 |
PURPOSE:To maintain high hydrogen concentration so as to enhance generation efficiency by providing a hydrogen enriching film at a cell stack connecting part in a module for supplying a fuel discharged from the cell stack to the next cell stack. CONSTITUTION:A cell stack T is formed by stacking single cells 4-1 and 4-2 the exit for a fuel in a stack T1 is connected with the entrance for the fuel in a stack T2 via connecting tubes 6 and 7. Thus, the fuel is charged from an entrance X1, runs through stacks T1 to T3, then being discharged from an exit X2. A hydrogen enriching film 8 is provided at the connecting tube part 7. The film 8 is composed of a removing film containing a through hole, so that an enrichment effect can be provided due to an effusion flow. As the result, carbon dioxide and steam are removed from an discharged fuel gas in the stack T2, thereby a gas, in which hydrogen being enriched, is supplied to the stack T3. Whereby, generation efficiency can be increased. |
