| 摘要 |
The method for determining the alcohol concentration in the alcohol/water mixture of fuel cells which are operated with this mixture, is particularly suited for direct methanol fuel cells. A part of the alcohol/water mixture is separated off and is transported against a predetermined pressure. The part of the mixture that has been separated off is heated until it boils, the boiling temperature is measured and, from this measurement, the mole fraction of the alcohol in the mixture is determined. |
