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Polymer electrolyte fuel cells: flow field for efficient air operation

Abstract

A new flow field was designed for a polymer electrolyte fuel cell stack with an active area of 200 cm{sup 2} for operation at low air stoichiometry and low air over pressure. Optimum of gas flow and channel dimensions were calculated based on the required pressure drop in the fluid. Single cells and a bi-cell stack with the new flow field show an improved current/voltage characteristic when operated at low air stoichiometries as compared to that of the previous non optimized design. (author) 4 figs., 3 refs.
Authors:
Buechi, F N; Tsukada, A; Haas, O; Scherer, G G [1] 
  1. Paul Scherrer Inst. (PSI), Villigen (Switzerland)
Publication Date:
Jun 01, 1997
Product Type:
Miscellaneous
Report Number:
ETDE/CH-mf-97750556
Reference Number:
SCA: 300501; PA: CH-97:0E0214; EDB-97:091671; SN: 97001800485
Resource Relation:
Other Information: PBD: 1997; Related Information: Is Part Of Paul Scherrer Institut annual report 1996. Annex V: PSI general energy technology newsletter 1996; Daum, C.; Leuenberger, J. [eds.]; PB: 125 p.
Subject:
30 DIRECT ENERGY CONVERSION; SOLID ELECTROLYTE FUEL CELLS; DESIGN; GAS FLOW; STOICHIOMETRY; AIR; PRESSURE DROP; PERFORMANCE; EXPERIMENTAL DATA
OSTI ID:
492045
Country of Origin:
Switzerland
Language:
English
Other Identifying Numbers:
Other: ON: DE97750556; TRN: CH97E0214
Availability:
OSTI as DE97750556
Submitting Site:
CH
Size:
pp. 57-58
Announcement Date:

Citation Formats

Buechi, F N, Tsukada, A, Haas, O, and Scherer, G G. Polymer electrolyte fuel cells: flow field for efficient air operation. Switzerland: N. p., 1997. Web.
Buechi, F N, Tsukada, A, Haas, O, & Scherer, G G. Polymer electrolyte fuel cells: flow field for efficient air operation. Switzerland.
Buechi, F N, Tsukada, A, Haas, O, and Scherer, G G. 1997. "Polymer electrolyte fuel cells: flow field for efficient air operation." Switzerland.
@misc{etde_492045,
title = {Polymer electrolyte fuel cells: flow field for efficient air operation}
author = {Buechi, F N, Tsukada, A, Haas, O, and Scherer, G G}
abstractNote = {A new flow field was designed for a polymer electrolyte fuel cell stack with an active area of 200 cm{sup 2} for operation at low air stoichiometry and low air over pressure. Optimum of gas flow and channel dimensions were calculated based on the required pressure drop in the fluid. Single cells and a bi-cell stack with the new flow field show an improved current/voltage characteristic when operated at low air stoichiometries as compared to that of the previous non optimized design. (author) 4 figs., 3 refs.}
place = {Switzerland}
year = {1997}
month = {Jun}
}