THE INJECTION OF AIR MOTION FUEL SPRAY AND COMBUSTION IN THE DIESEL COMBUSTION PROCESS

This paper is pertinent mainly to combustion in open-chamber diesel engines employing air swirl. It is shown how an increase in air swirl rate can cause a marked loss of combustion efficiency unless fuel spray penetration is increased. High swirl reduces radial fuel spray penetration with central injection and the resulting excess fuel in the central area may be trapped by buoyancy forces following ignition, becoming isolated for as much as a tenth of a second in a chamber of four in. diameter. A brief explanation of fuel injection in terms of the mechanics of fluid jets is given and circumstances described in which buoyancy forces assist fuel-air mixing following ignition.

• Corporate Authors:

  American Society of Mechanical Engineers

  Two Park Avenue
  New York, NY  United States  10016-5990
• Authors:
  • Melton, R B
  • Rogowski, A R
• Publication Date: 1972-1

Media Info

• Features: Tables;
• Pagination: p. 11-16
• Serial:
  • Journal of Engineering for Power
  • Volume: 94
  • Issue Number: A-1
  • Publisher: American Society of Mechanical Engineers

Subject/Index Terms

• TRT Terms: Combustion; Diesel fuels; Fuel system components; Nozzles
• Old TRIS Terms: Fuel atomization; Fuel spray nozzles
• Subject Areas: Marine Transportation; Vehicles and Equipment;

Filing Info

• Accession Number: 00032682
• Record Type: Publication
• Source Agency: United States Merchant Marine Academy
• Files: TRIS
• Created Date: Apr 21 1973 12:00AM