ROTARY ENGINE COMBUSTION WITH HYDROGEN ADDITION
The lean operating limit of a rotary combustion engine was extended by hydrogen-enriched fuel to equivalence ratios as low as 0.49. Reductions in NO sub x and CO emissions from baseline conditions were observed, although HC emissions increased significantly. The effect of hydrogen-induced lean combustion on indicated thermal efficiency was found to be dependent on the change in H sub 2/C sub 8 H sub 18 fraction with decreasing equivalence ratio. An increase in H sub 2/C sub 8 H sub 18 fraction with decreasing equivalence ratio has little effect on indicated thermal efficiency, whereas a constant or decreasing H sub 2/C sub 8 H sub 18 fraction led to a makred decrease. The brake thermal efficiency when compared at constant power increased marginally.
- Sponsored by the National Science Foundation and prepared for the West Coast Meeting of the Society of Automotive Engineers, August 9-12, 1976, San Francisco, California.
University of California, BerkeleyInstitute of Transportation Studies Library
Berkeley, CA USA 94720
- Cichanowicz, J E
- SAWYER, R F
- Publication Date: 1976
- Features: Figures; References; Tables;
- Pagination: 15 p.
- TRT Terms: Combustion; Hydrogen; Lean fuel mixtures; Rotary engines; Thermal efficiency; Traffic equivalence factor
- Old TRIS Terms: Lean fuel engine
- Subject Areas: Highways; Safety and Human Factors;
- Accession Number: 00145090
- Record Type: Publication
- Source Agency: Highway Safety Research Institute
- Report/Paper Numbers: SAE #760611
- Contract Numbers: NSF-GI-44379
- Files: TRIS
- Created Date: Mar 30 1977 12:00AM