Solid oxide fuel cell

摘要

To an internal vessel that houses cells of a solid oxide fuel cell, an external vessel is further disposed. In the internal vessel, a plurality of planar cells is disposed vertically with a gap between the cells, a mixed gas of a fuel and air is descended from top down through the gap having a predetermined width between the cells, and, at a bottom portion of the housing space, the mixed gas is burned to generate electricity.

主权项

1. A single chamber solid oxide fuel cell, comprising:
a cell housing in which a mixed gas of fuel and air is flowed, a plurality of planar cells disposed in the cell housing space of the cell housing in parallel and with a predetermined gap between the cells, a porous body disposed in the cell housing space supporting the plurality of planar cells, the porous body partitioning the cell housing space into a first cell housing space and a second cell housing space, and the cell housing comprising an internal vessel that houses the cells and is made of a heat-insulating material and an external vessel that houses the internal vessel and is made of a heat-insulating material, wherein a gap is defined between an outer surface of the internal vessel and an inner surface of the external vessel, the gap extending parallel to the cells in a direction from the second cell housing space to the first cell housing space and defining an exhaust port at an end of the gap to exhaust an exhaust gas, the solid oxide fuel cell being configured such that in operation, the mixed gas flows the gap between the cells through the first cell housing space, flows through the porous body, and is burned at a downstream portion of a flow of the mixed gas in the second cell housing space to generate electricity, and after the mixed gas is burned in the second cell housing space, the exhaust gas flows through the gap between the outer surface of the internal vessel and the inner surface of the external vessel and is exhausted out of the exhaust port at the end of the gap.