Fuel-cell engine stream conditioning system

Title: Fuel-cell engine stream conditioning system

Full Record
Other Related Research

Abstract

A stream conditioning system for a fuel cell gas management system or fuel cell engine. The stream conditioning system manages species potential in at least one fuel cell reactant stream. A species transfer device is located in the path of at least one reactant stream of a fuel cell's inlet or outlet, which transfer device conditions that stream to improve the efficiency of the fuel cell. The species transfer device incorporates an exchange media and a sorbent. The fuel cell gas management system can include a cathode loop with the stream conditioning system transferring latent and sensible heat from an exhaust stream to the cathode inlet stream of the fuel cell; an anode humidity retention system for maintaining the total enthalpy of the anode stream exiting the fuel cell related to the total enthalpy of the anode inlet stream; and a cooling water management system having segregated deionized water and cooling water loops interconnected by means of a brazed plate heat exchanger.

Inventors:

DuBose, Ronald Arthur ^[1]

Marietta, GA

Issue Date:: 2002-01-01

Research Org.:: PENTASTAR ELECTRONICS CO

OSTI Identifier:: 874665

Patent Number(s):: 6436562

Assignee:: Emprise Technology Associates Corp. (Marietta, GA)

Patent Classifications (CPCs):: H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01M - PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY

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

Show more

H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01M - PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
H01M8/04097 - {with recycling of the reactants
H01M8/1016 - characterised by the electrolyte material
H01M8/043 - applied during specific periods
H01M8/04029 - Heat exchange using liquids
H01M8/04223 - during start-up or shut-down
H01M8/0267 - having heating or cooling means, e.g. heaters or coolant flow channels
H01M8/04119 - with simultaneous supply or evacuation of electrolyte

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
Y02E60/50 - Fuel cells

H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01M - PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
H01M8/04014 - Heat exchange using gaseous fluids

Show less

DOE Contract Number:: AC02-94CE50390

Resource Type:: Patent

Country of Publication:: United States

Language:: English

Subject:: fuel-cell; engine; stream; conditioning; fuel; cell; gas; management; manages; species; potential; reactant; transfer; device; located; path; cells; inlet; outlet; conditions; improve; efficiency; incorporates; exchange; media; sorbent; cathode; loop; transferring; latent; sensible; heat; exhaust; anode; humidity; retention; maintaining; total; enthalpy; exiting; related; cooling; water; segregated; deionized; loops; interconnected; means; brazed; plate; exchanger; fuel cell; heat exchanger; cell gas; reactant stream; /429/

Citation Formats


                    DuBose, Ronald Arthur. Fuel-cell engine stream conditioning system.  United States: N. p., 2002. 
        Web.

Copy to clipboard


                    DuBose, Ronald Arthur. Fuel-cell engine stream conditioning system.  United States.

Copy to clipboard


                    DuBose, Ronald Arthur. Tue .  
        "Fuel-cell engine stream conditioning system".  United States.  https://www.osti.gov/servlets/purl/874665.

Copy to clipboard


                    
@article{osti_874665,

  title        = {Fuel-cell engine stream conditioning system},

  author       = {DuBose, Ronald Arthur},

  abstractNote = {A stream conditioning system for a fuel cell gas management system or fuel cell engine. The stream conditioning system manages species potential in at least one fuel cell reactant stream. A species transfer device is located in the path of at least one reactant stream of a fuel cell's inlet or outlet, which transfer device conditions that stream to improve the efficiency of the fuel cell. The species transfer device incorporates an exchange media and a sorbent. The fuel cell gas management system can include a cathode loop with the stream conditioning system transferring latent and sensible heat from an exhaust stream to the cathode inlet stream of the fuel cell; an anode humidity retention system for maintaining the total enthalpy of the anode stream exiting the fuel cell related to the total enthalpy of the anode inlet stream; and a cooling water management system having segregated deionized water and cooling water loops interconnected by means of a brazed plate heat exchanger.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {2002},

  month        = {1}

}

Copy to clipboard

Patent:

View Patent

Save / Share:

Export Metadata

Save to My Library

Similar Records in DOE Patents and OSTI.GOV collections:

Fuel-cell based power generating system having power conditioning apparatus

Patent Mazumder, Sudip K [Chicago, IL]; Pradhan, Sanjaya K [Des Plaines, IL]

A power conditioner includes power converters for supplying power to a load, a set of selection switches corresponding to the power converters for selectively connecting the fuel-cell stack to the power converters, and another set of selection switches corresponding to the power converters for selectively connecting the battery to the power converters. The power conveners output combined power that substantially optimally meets a present demand of the load.
Full Text Available
Method of controlling injection of oxygen into hydrogen-rich fuel cell feed stream

Patent Meltser, Mark Alexander [Pittsford, NY]; Gutowski, Stanley [Pittsford, NY]; Weisbrod, Kirk [Los Alamos, NM]

A method of operating a H.sub.2 --O.sub.2 fuel cell fueled by hydrogen-rich fuel stream containing CO. The CO content is reduced to acceptable levels by injecting oxygen into the fuel gas stream. The amount of oxygen injected is controlled in relation to the CO content of the fuel gas, by a control strategy that involves (a) determining the CO content of the fuel stream at a first injection rate, (b) increasing the O.sub.2 injection rate, (c) determining the CO content of the stream at the higher injection rate, (d) further increasing the O.sub.2 injection rate if the second measured COmore »« less
Full Text Available
Methods of conditioning direct methanol fuel cells

Patent Rice, Cynthia [Newington, CT]; Ren, Xiaoming [Menands, NY]; Gottesfeld, Shimshon [Niskayuna, NY]

Methods for conditioning the membrane electrode assembly of a direct methanol fuel cell ("DMFC") are disclosed. In a first method, an electrical current of polarity opposite to that used in a functioning direct methanol fuel cell is passed through the anode surface of the membrane electrode assembly. In a second method, methanol is supplied to an anode surface of the membrane electrode assembly, allowed to cross over the polymer electrolyte membrane of the membrane electrode assembly to a cathode surface of the membrane electrode assembly, and an electrical current of polarity opposite to that in a functioning direct methanol fuelmore »« less
Full Text Available
System for adding sulfur to a fuel cell stack system for improved fuel cell stability

Patent Mukerjee, Subhasish; Haltiner, Jr., Karl J; Weissman, Jeffrey G

A system for adding sulfur to a reformate stream feeding a fuel cell stack, having a sulfur source for providing sulfur to the reformate stream and a metering device in fluid connection with the sulfur source and the reformate stream. The metering device injects sulfur from the sulfur source to the reformate stream at a predetermined rate, thereby providing a conditioned reformate stream to the fuel cell stack. The system provides a conditioned reformate stream having a predetermined sulfur concentration that gives an acceptable balance of minimal drop in initial power with the desired maximum stability of operation over prolongedmore » periods for the fuel cell stack.« less
Full Text Available
System for adding sulfur to a fuel cell stack system for improved fuel cell stability

Patent Mukerjee, Subhasish [Pittsford, NY]; Haltiner, Jr., Karl J (Fairport, NY); Weissman, Jeffrey G [West Henrietta, NY]

A system for adding sulfur to a fuel cell stack, having a reformer adapted to reform a hydrocarbon fuel stream containing sulfur contaminants, thereby providing a reformate stream having sulfur; a sulfur trap fluidly coupled downstream of the reformer for removing sulfur from the reformate stream, thereby providing a desulfurized reformate stream; and a metering device in fluid communication with the reformate stream upstream of the sulfur trap and with the desulfurized reformate stream downstream of the sulfur trap. The metering device is adapted to bypass a portion of the reformate stream to mix with the desulfurized reformate stream, therebymore »« less
Full Text Available

Similar Records