| 摘要 |
PURPOSE:To improve the performance of a fuel cell by providing a turbulence promoter in gas passage inside the cell in order to promote the mixing of gas, so that the concentration of reaction gas is increased on the electrode surface. CONSTITUTION:A product gas 15 flows downstream from an anode 10 to a fuel gas passage 11. An increased amount of the product gas 15 is produced, as the power generation proceeds by electrochemical reaction, forming a product gas layer between the reaction gas. The passage area of fuel gas is however constricted by the effect of an extruded turbulence promoter 4 installed in the passage, generating a large turbulence of the flow at the downstream side, which causes mixing of the product gas 15 and the fuel gas 13 and disappearance of the product gas layer, and completely mixed fuel gas is fed to the electrode surface. |
