HUMIDIFIER FOR FUEL CELL SYSTEMS
A humidifier for transferring water vapour from a first gas stream to a second gas stream in a fuel cell system comprises a stack of thin plates having planar sealing surfaces at their edges, along which they are sealed together. A water permeable membranes is provided between each pair of plates in...
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| creator | KUMMEROW, JACK WILSON, JON HASAN, MANAF VANDERWEES, DOUG |
| description | A humidifier for transferring water vapour from a first gas stream to a second gas stream in a fuel cell system comprises a stack of thin plates having planar sealing surfaces at their edges, along which they are sealed together. A water permeable membranes is provided between each pair of plates in the stack. Each plate defines a gas flow passage along its top and bottom surfaces, with an inlet and outlet defined along edges of the plate, and a flow field extending between the inlet and outlet openings. Inlet and outlet passages connect the inlet and outlet openings to the flow field, and the planar sealing surfaces on both sides of the plate include bridging portions which extend across the inlet and outlet passages. Support structures such as ribs are provided throughout the flow field and the inlet and outlet passages to support the membrane and diffusion medium layer(s). The support structures may optionally be connected together by webs, and the webs are provided with holes to permit flow distribution between the top and bottom of each plate. |
| format | Patent |
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A water permeable membranes is provided between each pair of plates in the stack. Each plate defines a gas flow passage along its top and bottom surfaces, with an inlet and outlet defined along edges of the plate, and a flow field extending between the inlet and outlet openings. Inlet and outlet passages connect the inlet and outlet openings to the flow field, and the planar sealing surfaces on both sides of the plate include bridging portions which extend across the inlet and outlet passages. Support structures such as ribs are provided throughout the flow field and the inlet and outlet passages to support the membrane and diffusion medium layer(s). 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| language | eng ; fre |
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| subjects | AIR-CONDITIONING, AIR-HUMIDIFICATION, VENTILATION, USE OF AIRCURRENTS FOR SCREENING BASIC ELECTRIC ELEMENTS BLASTING DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OFGENERAL APPLICATION ELECTRICITY HEAT EXCHANGE IN GENERAL HEATING LIGHTING MECHANICAL ENGINEERING PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY RANGES VENTILATING WEAPONS |
| title | HUMIDIFIER FOR FUEL CELL SYSTEMS |
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