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Title: Solid oxide fuel cell matrix and modules

Abstract

Porous refractory ceramic blocks arranged in an abutting, stacked configuration and forming a three dimensional array provide a support structure and coupling means for a plurality of solid oxide fuel cells (SOFCs). Each of the blocks includes a square center channel which forms a vertical shaft when the blocks are arranged in a stacked array. Positioned within the channel is a SOFC unit cell such that a plurality of such SOFC units disposed within a vertical shaft form a string of SOFC units coupled in series. A first pair of facing inner walls of each of the blocks each include an interconnecting channel hole cut horizontally and vertically into the block walls to form gas exit channels. A second pair of facing lateral walls of each block further include a pair of inner half circular grooves which form sleeves to accommodate anode fuel and cathode air tubes. The stack of ceramic blocks is self-supporting, with a plurality of such stacked arrays forming a matrix enclosed in an insulating refractory brick structure having an outer steel layer. The necessary connections for air, fuel, burnt gas, and anode and cathode connections are provided through the brick and steel outer shell. The ceramicmore » blocks are so designed with respect to the strings of modules that by simple and logical design the strings could be replaced by hot reloading if one should fail. The hot reloading concept has not been included in any previous designs.

Inventors:
 [1]
  1. Willimantic, CT
Issue Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
OSTI Identifier:
867466
Patent Number(s):
4943494
Assignee:
United States of America as represented by United States (Washington, DC)
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
DOE Contract Number:  
W-31109-ENG-38
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
solid; oxide; fuel; cell; matrix; modules; porous; refractory; ceramic; blocks; arranged; abutting; stacked; configuration; forming; dimensional; array; provide; support; structure; coupling; means; plurality; cells; sofcs; square; center; channel; forms; vertical; shaft; positioned; sofc; unit; units; disposed; form; string; coupled; series; pair; facing; inner; walls; interconnecting; cut; horizontally; vertically; block; gas; exit; channels; lateral; half; circular; grooves; sleeves; accommodate; anode; cathode; air; tubes; stack; self-supporting; arrays; enclosed; insulating; brick; outer; steel; layer; connections; burnt; provided; shell; designed; respect; strings; simple; logical; design; replaced; hot; reloading; fail; concept; included; previous; designs; stacked configuration; insulating refractory; fuel cell; air tubes; steel outer; inner wall; outer shell; fuel cells; oxide fuel; solid oxide; support structure; unit cell; refractory brick; refractory ceramic; inner walls; stacked array; gas exit; vertical shaft; ceramic blocks; cell matrix; coupling means; porous refractory; circular groove; units coupled; ceramic block; air tube; dimensional array; /429/

Citation Formats

Riley, Brian. Solid oxide fuel cell matrix and modules. United States: N. p., 1990. Web.
Riley, Brian. Solid oxide fuel cell matrix and modules. United States.
Riley, Brian. Mon . "Solid oxide fuel cell matrix and modules". United States. https://www.osti.gov/servlets/purl/867466.
@article{osti_867466,
title = {Solid oxide fuel cell matrix and modules},
author = {Riley, Brian},
abstractNote = {Porous refractory ceramic blocks arranged in an abutting, stacked configuration and forming a three dimensional array provide a support structure and coupling means for a plurality of solid oxide fuel cells (SOFCs). Each of the blocks includes a square center channel which forms a vertical shaft when the blocks are arranged in a stacked array. Positioned within the channel is a SOFC unit cell such that a plurality of such SOFC units disposed within a vertical shaft form a string of SOFC units coupled in series. A first pair of facing inner walls of each of the blocks each include an interconnecting channel hole cut horizontally and vertically into the block walls to form gas exit channels. A second pair of facing lateral walls of each block further include a pair of inner half circular grooves which form sleeves to accommodate anode fuel and cathode air tubes. The stack of ceramic blocks is self-supporting, with a plurality of such stacked arrays forming a matrix enclosed in an insulating refractory brick structure having an outer steel layer. The necessary connections for air, fuel, burnt gas, and anode and cathode connections are provided through the brick and steel outer shell. The ceramic blocks are so designed with respect to the strings of modules that by simple and logical design the strings could be replaced by hot reloading if one should fail. The hot reloading concept has not been included in any previous designs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1990},
month = {1}
}