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The effect of insulated combustion chamber surfaces on direct-injected diesel engine performance, emissions, and combustion
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Dickey, Daniel W. Vinyard, Shannon Keribar, Rifat |
| Copyright Year | 1988 |
| Description | The combustion chamber of a single-cylinder, direct-injected diesel engine was insulated with ceramic coatings to determine the effect of low heat rejection (LHR) operation on engine performance, emissions, and combustion. In comparison to the baseline cooled engine, the LHR engine had lower thermal efficiency, with higher smoke, particulate, and full load carbon monoxide emissions. The unburned hydrocarbon emissions were reduced across the load range. The nitrous oxide emissions increased at some part-load conditions and were reduced slightly at full loads. The poor LHR engine performance was attributed to degraded combustion characterized by less premixed burning, lower heat release rates, and longer combustion duration compared to the baseline cooled engine. |
| File Size | 27674796 |
| Page Count | 174 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19890008177 |
| Archival Resource Key | ark:/13960/t2h759q5v |
| Language | English |
| Publisher Date | 1988-09-01 |
| Access Restriction | Open |
| Subject Keyword | Urban Technology And Transportation Insulation Cooling Diesel Engines Nitrous Oxides Exhaust Gases Particulates Combustion Products Engine Tests Ceramics Fuel Injection Combustion Chambers Protective Coatings Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
