Humidifier for fuel cell using high conductivity carbon foam

Klett, James W.; Stinton, David P.

Title: Humidifier for fuel cell using high conductivity carbon foam

Patent · Tue Dec 12 00:00:00 EST 2006

OSTI ID:1176019

Klett, James W.; Stinton, David P.

A method and apparatus of supplying humid air to a fuel cell is disclosed. The extremely high thermal conductivity of some graphite foams lends itself to enhance significantly the ability to humidify supply air for a fuel cell. By utilizing a high conductivity pitch-derived graphite foam, thermal conductivity being as high as 187 W/m.dot.K, the heat from the heat source is more efficiently transferred to the water for evaporation, thus the system does not cool significantly due to the evaporation of the water and, consequently, the air reaches a higher humidity ratio.

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Research Organization:: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)

Sponsoring Organization:: USDOE

DOE Contract Number:: AC05-00OR22725

Assignee:: UT-Battelle, LLC (Oak Ridge, TN)

Patent Number(s):: 7,147,214

Application Number:: 10/389,379

OSTI ID:: 1176019

Country of Publication:: United States

Language:: English

References (19)

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