| 摘要 |
The need to pressurise the gas supply lines of fuel cells is avoided by operating the cell below atmospheric pressure thus preventing the flow of electrolyte through the porous electrodes. The reduction in pressure is obtained by maintaining the cell above the electrolyte reservoir, the difference in pressure being determined by the height difference and the electrolyte density. A further pressure reduction (up to 500g/cm2) is obtained by placing the circulating pump in the exhaust line with a regulating valve in the inlet line. Entrained gas bubbles are removed by a degassing pump in the exhaust line. |
