THE EFFECT OF INSULATED DIESEL SURFACES ON PERFORMANCE, EMISSIONS, AND COMBUSTION

The combustion chamber of a single-cylinder, direct-injection diesel engine was insulated with ceramic coatings to determine the effect of low heat rejection (LHR) operation on engine performance, emissions, and combustion. The results showed that the LHR engine performance was not improved compared to the baseline cooled engine. In general, the LHR engine had lower thermal efficiency with higher smoke and particulate emissions. The unburned hydrocarbon (HC) emissions were reduced across the load range and the full load carbon monoxide (CO) increased. The nitrogen oxide (NO sub x) 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 and longer combustion duration compared to the baseline cooled engine.

• Supplemental Notes:
  • Conference paper
• Authors:
  • Dickey, D
  • Vinyard, S
  • Callahan, T
• Conference:
  • Automotive Technology Development Contractors' Coordination Meeting, 25th
  • Location: Dearborn, Michigan
  • Date: 1987-10-26 to 1987-10-29
• Publication Date: 0

Media Info

• Features: References;
• Pagination: 8p.

Subject/Index Terms

• TRT Terms: Ceramic materials; Combustion; Combustion chambers; Diesel engines; Performance; Pollutants
• Old TRIS Terms: Engine coatings
• Subject Areas: Environment; Marine Transportation;

Filing Info

• Accession Number: 00658148
• Record Type: Publication
• Source Agency: Maritime Technical Information Facility
• Files: TRIS
• Created Date: Jul 21 1994 12:00AM