HYDROGEN-ENRICHMENT-CONCEPT PRELIMINARY EVALUATION. FINAL REPORT

A hydrogen-enriched fuels concept for automobiles consists of the addition of a hydrogen generator to an internal combustion engine system. Some of the fuel normally provided to the engine is diverted to the hydrogen generator. In the hydrogen generator, the fuel is vaporized and mixed with preheated air after which it is partially oxidized, i.e., reacted at an overall rich condition, on the surface of a low-cost nickel catalyst. The products of this reaction are predominantly hydrogen and carbon monoxide. The product gas is mixed with primary fuel and air at a very lean ratio and is then inducted into the engine. The system was evaluated in terms of fuel consumption and engine exhaust emissions through multicylinder (V-8) automotive engine/hydrogen generator tests, single cylinder research engine (CFR) tests, and hydrogen-generator characterization tests. Analytical predictions were made of the fuel consumption and NO/sub x/ emissions which would result from anticipated engine improvements. The hydrogen-gas generator, which was tested to quantify its thermodynamic input-output relationships, was used for integrated testing of the V-8 engine and generator. (ERA citation 01:013588)

• Corporate Authors:

  Jet Propulsion Laboratory

  California Institute of Technology, 4800 Oak Grove Drive
  Pasadena, CA  United States  91103
• Authors:
  • Ecklund, E
• Publication Date: 1975-12-15

Media Info

• Pagination: 221 p.

Subject/Index Terms

• TRT Terms: Air; Automobiles; Exhaust gases; Formulations; Fuel consumption; Generators; Hydrogen; Hydrogen fuels; Hydrogen production; Internal combustion engines; Isotopes; Mathematical models; Mixing; Mixtures; Motor fuels; Nitric oxide; Nitrogen oxides; Testing
• Old TRIS Terms: Enrichment; Hydrogen generators; Mixing ratio; Uses
• Subject Areas: Energy; Geotechnology; Highways; Materials;

Filing Info

• Accession Number: 00143625
• Record Type: Publication
• Source Agency: National Technical Information Service
• Files: TRIS
• Created Date: Nov 17 1977 12:00AM