Humidifier for fuel cell using high conductivity carbon foam

Klett, James W.; Stinton, David P.

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A - human necessities
A01 - agriculture
A21 - baking
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Title: 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:: Klett, James W.; Stinton, David P.

Issue Date:: 2006-12-12

Research Org.:: Oak Ridge National Laboratory (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):: C - CHEMISTRY C04 - CEMENTS C04B - LIME, MAGNESIA

F - MECHANICAL ENGINEERING F28 - HEAT EXCHANGE IN GENERAL F28D - HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT

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C - CHEMISTRY C04 - CEMENTS C04B - LIME, MAGNESIA
C04B38/00 - Porous mortars, concrete, artificial stone or ceramic ware

F - MECHANICAL ENGINEERING F28 - HEAT EXCHANGE IN GENERAL F28D - HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
F28D20/023 - {the latent heat storage material being enclosed in granular particles or dispersed in a porous, fibrous or cellular structure}
F28D5/02 - in which the evaporating medium flows in a continuous film or trickles freely over the conduits

F - MECHANICAL ENGINEERING F28 - HEAT EXCHANGE IN GENERAL F28F - DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
F28F13/18 - by applying coatings, e.g. radiation-absorbing, radiation-reflecting
F28F21/02 - of carbon, e.g. graphite

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
Y02E60/14 - Thermal storage

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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.

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                    Klett, James W., & Stinton, David P. Humidifier for fuel cell using high conductivity carbon foam.  United States.

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                    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.

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@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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Works referenced in this record:

Formulation of a Mathematical Process Model for the Foaming of a Mesophase Carbon Precursor
journal, January 1992

Sandhu, S. S.; Hager, J. W.
MRS Proceedings, Vol. 270
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Glass-like carbons
journal, June 1969

Noda, Tokiti; Inagaki, Michio; Yamada, Shigehiko
Journal of Non-Crystalline Solids, Vol. 1, Issue 4
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Novel Hybrid Composites Based on Carbon Foams
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Hager, Joseph W.; Lake, Max L.
MRS Proceedings, Vol. 270
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Simple Process Produces High Modulus Carbon Fibers at Much Lower Cost
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Lake, Max
Materials Technology, Vol. 11, Issue 4
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Flexible towpreg for the fabrication of high thermal conductivity carbon/carbon composites
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Klett, J. W.; Edie, D. D.
Fuel and Energy Abstracts, Vol. 37, Issue 3
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Pitch-based processing of carbon-carbon composites
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White, J. L.; Sheaffer, P. M.
Carbon, Vol. 27, Issue 5
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Cowlard, F. C.; Lewis, J. C.
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The formation of graphitizing carbons from the liquid phase
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Brooks, J. D.; Taylor, G. H.
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Structure, microtexture, and optical properties of anthracene and saccharose-based carbons
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Rouzaud, J. N.; Oberlin, A.
Carbon, Vol. 27, Issue 4
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Widealized Strut Geometries for Open-Celled Foams
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Hager, Joseph W.
MRS Proceedings, Vol. 270
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Pitch and Mesophase Fibers
book, January 1990

Edie, Dan D.
Carbon Fibers Filaments and Composites
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High-thermal-conductivity, mesophase-pitch-derived carbon foams: effect of precursor on structure and properties
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Klett, James; Hardy, Rommie; Romine, Ernie
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Flexible towpreg for the fabrication of high thermal conductivity carbon/carbon composites
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Microcellular Foams Prepared From Demixed Polymer Solutions
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Structural development in mesophase pitch based carbon fibers produced from naphthalene
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Jones, S. P.; Fain, C. C.; Edie, D. D.
Carbon, Vol. 35, Issue 10-11
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Similar Records

Title: Humidifier for fuel cell using high conductivity carbon foam

Abstract

Citation Formats

Formulation of a Mathematical Process Model for the Foaming of a Mesophase Carbon Precursor journal, January 1992

Glass-like carbons journal, June 1969

Novel Hybrid Composites Based on Carbon Foams journal, January 1992

Simple Process Produces High Modulus Carbon Fibers at Much Lower Cost journal, January 1996

Flexible towpreg for the fabrication of high thermal conductivity carbon/carbon composites journal, May 1996

Pitch-based processing of carbon-carbon composites journal, January 1989

Vitreous carbon — A new form of carbon journal, November 1967

The formation of graphitizing carbons from the liquid phase journal, October 1965

Structure, microtexture, and optical properties of anthracene and saccharose-based carbons journal, January 1989

Widealized Strut Geometries for Open-Celled Foams journal, January 1992

Pitch and Mesophase Fibers book, January 1990

High-thermal-conductivity, mesophase-pitch-derived carbon foams: effect of precursor on structure and properties journal, January 2000

Flexible towpreg for the fabrication of high thermal conductivity carbon/carbon composites journal, January 1995

Modelling the mechanical behavior of cellular materials journal, March 1989

Pulse Method of Measuring Thermal Diffusivity at High Temperatures journal, April 1963

Application of laser flash method to penetrative materials for measurement of thermal diffusivity journal, February 1990

Microcellular Foams Prepared From Demixed Polymer Solutions journal, January 1990

Metallic foams: their production, properties and applications journal, July 1983

Structural development in mesophase pitch based carbon fibers produced from naphthalene journal, January 1997

Formulation of a Mathematical Process Model for the Foaming of a Mesophase Carbon Precursor
journal, January 1992

Glass-like carbons
journal, June 1969

Novel Hybrid Composites Based on Carbon Foams
journal, January 1992

Simple Process Produces High Modulus Carbon Fibers at Much Lower Cost
journal, January 1996

Flexible towpreg for the fabrication of high thermal conductivity carbon/carbon composites
journal, May 1996

Pitch-based processing of carbon-carbon composites
journal, January 1989

Vitreous carbon — A new form of carbon
journal, November 1967

The formation of graphitizing carbons from the liquid phase
journal, October 1965

Structure, microtexture, and optical properties of anthracene and saccharose-based carbons
journal, January 1989

Widealized Strut Geometries for Open-Celled Foams
journal, January 1992

Pitch and Mesophase Fibers
book, January 1990

High-thermal-conductivity, mesophase-pitch-derived carbon foams: effect of precursor on structure and properties
journal, January 2000

Flexible towpreg for the fabrication of high thermal conductivity carbon/carbon composites
journal, January 1995

Modelling the mechanical behavior of cellular materials
journal, March 1989

Pulse Method of Measuring Thermal Diffusivity at High Temperatures
journal, April 1963

Application of laser flash method to penetrative materials for measurement of thermal diffusivity
journal, February 1990

Microcellular Foams Prepared From Demixed Polymer Solutions
journal, January 1990

Metallic foams: their production, properties and applications
journal, July 1983

Structural development in mesophase pitch based carbon fibers produced from naphthalene
journal, January 1997