Humidifier for fuel cell using high conductivity carbon foam
Abstract
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.
- Inventors:
- Issue Date:
- Research Org.:
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1176019
- Patent Number(s):
- 7147214
- Application Number:
- 10/389,379
- Assignee:
- UT-Battelle, LLC (Oak Ridge, TN)
- Patent Classifications (CPCs):
-
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
F - MECHANICAL ENGINEERING F28 - HEAT EXCHANGE IN GENERAL F28F - DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- DOE Contract Number:
- AC05-00OR22725
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 25 ENERGY STORAGE
Citation Formats
Klett, James W., and Stinton, David P. Humidifier for fuel cell using high conductivity carbon foam. United States: N. p., 2006.
Web.
Klett, James W., & Stinton, David P. Humidifier for fuel cell using high conductivity carbon foam. United States.
Klett, James W., and Stinton, David P. Tue .
"Humidifier for fuel cell using high conductivity carbon foam". United States. https://www.osti.gov/servlets/purl/1176019.
@article{osti_1176019,
title = {Humidifier for fuel cell using high conductivity carbon foam},
author = {Klett, James W. and Stinton, David P.},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2006},
month = {12}
}
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