| 摘要 |
<p>A direct mass and heat transfer fuel cell power plant (10) includes at least one fuel cell (12), and a direct mass and heat transfer device (14) which passes an oxidant inlet stream (54) upstream of the fuel cell in mass transfer relationship with a cathode exhaust stream (40) leaving the cell so that mass such as water vapor picked up by the cathode exhaust stream passes directly through a transfer medium (46) of the mass and heat transfer device into the oxidant stream entering the cell, thereby humidifying and adding heat to the oxidant stream entering the cell. The transfer medium may comprise any of a variety of materials that sorb a fluid substance consisting of polar molecules, such as water, within a stream including fluid substances consisting of polar and non-polar molecules. An exemplary transfer medium includes a liquid water portion of a polyflourosulfonic ionomer membrane.</p> |
