Hydrogen, gasoline, and mixtures thereof were compared as fuels for learn-burn engines. Hydrogen for the mixed fuels tests was generated by partial oxidation of gasoline. Hydrogen combustion yielded the highest thermal efficiency at any NO sub x level. Gasoline yielded the second highest thermal efficiency for NO sub x levels greater than or approximately equal to two gm/mi. For lower NO sub x levels and high vehicle inertia weights, progressively more hydrogen supplementation was the second most efficient system. For vehicle inertia weights below 5000 lbm (2300 kg), the statutory NO sub x standard (0.4 gm/mi) could be met with one lb/hr (0.13 g/s) hydrogen supplementation.

  • Supplemental Notes:
    • Sponsored by NASA and prepared for the West Coast Meeting of the Society of Automotive Engineers, August 9-12, 1976, San Francisco, California.
  • Corporate Authors:

    California Institute of Technology

    Jet Propulsion Laboratory
    Pasadena, CA  United States 
  • Authors:
    • Finegold, J G
  • Publication Date: 1976

Media Info

  • Features: Figures; Photos; References; Tables;
  • Pagination: 13 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00145095
  • Record Type: Publication
  • Source Agency: Highway Safety Research Institute
  • Report/Paper Numbers: SAE #760609
  • Contract Numbers: NAS-7-100
  • Files: TRIS
  • Created Date: Mar 30 1977 12:00AM