AN ANALYTICAL AND EXPERIMENTAL STUDY OF THE PERFORMANCE AND EMISSIONS OF A HYDROGEN FUELED RECIPROCATING ENGINE. EXECUTIVE SUMMARY

An analytical model has been developed for the nitric oxide (NO) emissions and the power output of reciprocating engines fueled by hydrogen. Detailed documentation is provided of the methods used in the model. The results computed are in good agreement with recent experimental results obtained with a conventional engine. The results of the model also are compared with new experimental results from a CFR engine with direct fuel injection. In the latter engine, there was a combustion prechamber with a high turbulence level. The effect of this was found to be reduction in NO emissions and in power output. The experimental results obtained demonstrate the feasibility of an unthrottled, quality regulated hydrogen engine with very low NO emissions at loads up to one-half the maximum load. Engine parameters taken into account were compression ratio, mixture equivalence ration and engine load, ignition timing, injection timing, engine speed, percentage of exhaust gas recirculation and valve timing. Some projections are made about the outlook for meeting long term environmental pollution standards with IC reciprocating engines fueled by hydrogen. /Author/

• Supplemental Notes:
  • Sponsored by Department of Transportation, Office of University Research.
• Corporate Authors:

  Computer Identics Corporation

  Westwood, MA  United States 
• Authors:
  • deBoer, P C
  • McLean, W J
  • Fagelson, J J
  • Homan, H S
• Publication Date: 1974-6

Media Info

• Pagination: 4 p.

Subject/Index Terms

• TRT Terms: Environmental impacts; Exhaust gases; Hydrogen; Mathematical models; Nitric oxide
• Uncontrolled Terms: Models
• Subject Areas: Environment; Highways; Safety and Human Factors;

Filing Info

• Accession Number: 00141945
• Record Type: Publication
• Source Agency: National Safety Council Safety Research Info Serv
• Report/Paper Numbers: DOT-TST-74-75 Final Rpt.
• Contract Numbers: No DOT-OS-30113
• Files: TRIS
• Created Date: Apr 13 1977 12:00AM