WASTE HEAT COGENERATION FOR SMALLER MARINE DIESEL ENGINES

This paper examines the feasibility, from a thermodynamic standpoint, of using waste heat as a means of cogeneration for smaller marine diesel engines, given the lower amount of available energy and the wide fluctuation in exhaust temperatures and mass flow. It shows that a medium speed diesel engine rated at 1500 KW (2000 HP) and operated in the range of 600 to 1350 KW (800-1800 HP) will provide sufficient waste heat for the production of at least 25 to 50 KW of net usable energy. A computerized heat balance was performed to investigate the effect of exhaust heat variation on control of output horsepower. Information thus gathered confirmed the assumptions regarding minimum diesel engine size and expected net energy recoverable. For the proposed cogeneration unit the Rankine cycle was chosen on the basis of simplicity and proven effectiveness. A thorough computer-assisted analysis of six working fluids was undertaken, and R500 was selected.

• Supplemental Notes:
  • Conference paper
• Corporate Authors:

  Taylor, W. S.

  , ZZ N/A   
• Authors:
  • Olsen, R A
• Conference:
  • Chesapeake Marine Engineering Symposium, 3rd
  • Location: Arlington, Virginia
  • Date: 1988-1-28
• Publication Date: 0

Media Info

• Features: References;
• Pagination: 15p.

Subject/Index Terms

• TRT Terms: Diesel engines; Heat cycle; Rankine engines; Working fluids
• Uncontrolled Terms: Cogeneration; Heat recovery
• Old TRIS Terms: Rankine cycle; Small size; Thermodynamic cycles
• Subject Areas: Marine Transportation; Vehicles and Equipment;

Filing Info

• Accession Number: 00655952
• Record Type: Publication
• Source Agency: Maritime Technical Information Facility
• Files: TRIS
• Created Date: Jul 21 1994 12:00AM