PEM fuel cell system with a porous hydrophobic plug for...

Details PEM fuel cell system with a porous hydrophobic plug for... PEM fuel cell system with a porous hydrophobic plug for...

2011-07-12

2011-07-12

Rhee, Jane (Department: 1726)

Chemistry: electrical current producing apparatus, product, and

Fuel cell, subcombination thereof, or method of making or...

Means for joining components together

C429S437000, C429S439000, C429S492000

Reexamination Certificate

active

07977010

ABSTRACT:
A polymer electrolyte membrane (PEM) fuel cell power plant is cooled evaporatively by a non-circulating pressurized water coolant system. The coolant system utilizes a hydrophobic porous plug for bleeding air from the coolant water while maintaining coolant back pressure in a coolant flow field of the system. Furthermore, there is a first method for identifying appropriate parameters of the hydrophobic porous plug for use with a known particular coolant system; and a second method for determining proper operating conditions for a fuel cell water coolant system which can operate with a hydrophobic porous plug closure having known physical parameters.

REFERENCES:
patent: 2003/0044656 (2003-03-01), Wood
patent: 2006/0141331 (2006-06-01), Reiser et al.

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