PERFORMANCE OF WATER-ADDED RECIPROCATING ENGINES: AIR-STANDARD-CYCLE-APPROXIMATION

An Air-Standard-Cycle-Approximation to the ideal cycles of reciprocating engines has resulted in the prediction that water addition will decrease the indicated efficiency of reciprocating engines. The results show for the relative efficiencies that the ideal Otto cycle > the ideal limited pressure cycle > the ideal diesel cycle. It is concluded that the Air-Standard-Cycle-Approximation can play a useful role in rationalizing the performance of water-added reciprocating engines as it has historically for engines without water addition. (ERA citation 03:048293)

• Supplemental Notes:
  • Western States Section/Combustion Institute, Boulder, CO, USA, 17 Apr 1978.
• Corporate Authors:

  Brookhaven National Laboratory

  Upton, NY  United States 

  Department of Energy

  1000 Independence Avenue, SW
  Washington, DC  United States  20585
• Authors:
  • Krishna, C R
  • McAlevy III, R E
• Publication Date: 1978-3

Media Info

• Pagination: 14 p.

Subject/Index Terms

• TRT Terms: Additives; Diesel engines; Economic efficiency; Heat cycle; Internal combustion engines; Mathematical models; Motor fuels; Performance; Piston engines; Spark ignition engines; Water
• Uncontrolled Terms: Efficiency
• Old TRIS Terms: Thermodynamic cycles
• Subject Areas: Economics; Highways; Vehicles and Equipment;

Filing Info

• Accession Number: 00186384
• Record Type: Publication
• Source Agency: National Technical Information Service
• Report/Paper Numbers: CONF-780417-10
• Contract Numbers: EY-76-C-02-0016
• Files: TRIS
• Created Date: Feb 27 1979 12:00AM