FEASIBILITY TEST ON COMPOUNDING THE INTERNAL COMBUSTION ENGINE FOR AUTOMOTIVE VEHICLES, TASK II

The organic Rankine bottoming cycle can be considered for various automobile and truck applications. The most attractive use, however, is in large, heavy-duty diesel trucks for long distance hauling. Here, the engine load and speed requirements are nearly constant over a large portion of the operating hours, and high mileages are accumulated. Thus, the potential fuel savings are sufficient to justify the added cost of a bottoming cycle system. A conceptual design study of compounding the diesel truck engine with an ORCS was made and the results of the study are presented. Based on the results of the conceptual design study which showed a 15 percent fuel economy improvement potential over the duty cycle, an early feasibility demonstration test of the system was initiated. The demonstration system uses a Mack ENDT 676 diesel engine with existing but nonoptimum ORCS hardware made available from an earlier automotive Rankine-cycle program. The results of these feasibility demonstration tests, both steady-state and transient, over the operating range of the diesel engine, are presented. (ERA citation 02:030151)

• Corporate Authors:

  Thermo Electron Corporation

  101 First Avenue
  Waltham, MA  United States  02154

  Energy Research and Development Administration

  20 Massachusetts Avenue, NW
  Washington, DC  United States  20590
• Publication Date: 1976

Media Info

• Pagination: 250 p.

Subject/Index Terms

• TRT Terms: Automotive engineering; Design; Diesel engines; Economic factors; Energy; Feasibility analysis; Fuel consumption; Gears; Green interval (Traffic signal cycle); Internal forces; Performance tests; Rankine engines; Steady state; Test facilities; Transients; Trucks; Vehicle design
• Old TRIS Terms: Bottoming cycles; Combined cycles; Performance testing; Rankine cycle; Steady-state conditions; Vapor generators
• Subject Areas: Design; Economics; Energy; Highways; Motor Carriers; Safety and Human Factors;

Filing Info

• Accession Number: 00166119
• Record Type: Publication
• Source Agency: National Technical Information Service
• Report/Paper Numbers: Final Rpt.
• Contract Numbers: E(11-1)-2690
• Files: TRIS
• Created Date: Sep 20 1978 12:00AM