RECENT ADVANCES IN VEHICULAR STEAM ENGINE EFFICIENCY

Previous SPS vehicular steam expander development is reviewed. A counterflow expander installed in the 3000 lb (1364 kg) California Steam Car is shown to give 6.2 mpg (2.2 km/1) over the Urban Federal Driving Cycle, for BSFC = 1.2. Advantages of the uniflow expander with impulse valves are discussed, and the equation for theoretical cycle efficiency is derived. Laboratory tests on a 4 cylinder uniflow with impulse valves and a 2000 psia (136 atm), 1400 deg F (760 deg C) monotube boiler are described, and efficiency results for steam temperatures up to 1100 deg F (593 deg C) are presented. /GMRL/

Media Info

  • Pagination: 11 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00145269
  • Record Type: Publication
  • Report/Paper Numbers: SAE 760340
  • Files: TRIS
  • Created Date: May 31 1977 12:00AM