The liquid- and air-cooled phosphoric acid, the proton exchange membrane, and the monolithic solid oxide fuel cell systems were analysed for use in vehicle propulsion applications. System efficiency and input energy distribution were examined as a function of electrochemical fuel-utilization and other operating parameters. The liquid-cooled phosphoric acid and the monolithic solid oxide fuel cell systems have efficiencies approaching 40 percent; the air-cooled phosphoric acid and the proton exhange membrane fuel cells offer efficiencies near 30 percent. Thus the efficiencies of all these fuel cell systems are much greater than the efficiencies of internal combustion engines. Our analyses indicate further that these fuel cells should be operated at the highest practical electrochemical fuel utilization rates for best efficiency and dynamic response, as well as minimum component volume and cost.

  • Supplemental Notes:
    • Portions of this document are illegible in microfiche products.
  • Corporate Authors:

    Argonne National Laboratory

    9700 South Cass Avenue
    Argonne, IL  United States  60439
  • Authors:
    • Kumar, R
    • Krumpelt, M
    • MISRA, B
  • Publication Date: 1989

Media Info

  • Pagination: 7 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00494321
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • Report/Paper Numbers: CONF-890815-26
  • Files: TRIS
  • Created Date: May 31 1990 12:00AM