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Fuel Cell Humidifier Airfoil Design

IP.com Disclosure Number: IPCOM000249393D
Publication Date: 2017-Feb-23
Document File: 2 page(s) / 153K

Publishing Venue

The IP.com Prior Art Database

Abstract

Disclosed is a fuel cell humidifier core using a permeable membrane and a pleated spun bond plastic spacing material to create multiple tubes or "airfoils" which are assembled into a humidifier core and assembled into an outer housing creating a humidifier design with unique air flow paths which promotes the transfer of water vapor across the membrane from the wet side to the dry side. The unique assembly of the membrane into multiple tubes or "airfoils" and then sealed with end caps and placed into a housing creates alternating channels promoting the transfer of water vapor. This humidifier has alternating flow channels of wet and dry air in adjacent flow paths to one another. The wet air would flow through the center of the airfoils while the dry air would enter the main volume of the humidifier and pass between the airfoils prior to exiting the humidifier.

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Fuel Cell Humidifier Airfoil Design

Known prior art

Humidifiers for fuel cells are known which have a plurality of superimposed membranes which separate flow channels for the feed-through of moist and dry air. Water molecules penetrate the membranes from the moist to the dry air stream which is thus enriched with moisture. The exhaust gas of the fuel cell can be used as moist incoming air stream; the moisture of which exhaust gas is transferred through the membrane into a fresh-air stream which is then fed to the inlet of the fuel cell system in order to generate current in an electrochemical reaction.

Description of the invention

Disclosed is a fuel cell humidifier core using a permeable membrane and a pleated spun bond plastic spacing material to create multiple tubes or "airfoils" which are assembled into a humidifier core and assembled into an outer housing creating a humidifier design with unique air flow paths which promotes the transfer of water vapor across the membrane from the wet side to the dry side. The unique assembly of the membrane into multiple tubes or "airfoils" and then sealed with end caps and placed into a housing creates alternating channels promoting the transfer of water vapor. This humidifier has alternating flow channels of wet and dry air in adjacent flow paths to one another. The wet air would flow through the center of the airfoils while the dry air would enter the main volume of the humidifier and pass between the airfoils prior to exiting the humidifier. (See attached presentati...