THERMAL EFFICIENCY OF THE UNIFLOW STEAM EXPANDER AT 800 TO 1400 DEG F INLET TEMPERATURE

A design concept is presented for a single acting uniflow expander with poppet valving, water cooled cylinder walls, and unlubricated piston rings. The calculated thermal efficiency of this expander is shown to be relatively insensitive to inlet pressure. Efficiency increases with inlet temperature, typically from 28% at 800 degrees F to 36% at 1400 degrees F. This improvement is efficiency makes the 1400 degree F uniflow competitive in fuel mileage with present automobiles. /GMRL/

• Supplemental Notes:
  • From Intersociety Energy Conversion Engineering Conference, 9th Proceedings.
• Corporate Authors:

  Society of Automotive Engineers (SAE)

  400 Commonwealth Drive
  Warrendale, PA  United States  15096
• Authors:
  • Burton, R L
• Conference:
  • From Intersociety Energy Conversion Engineering Conference, 9th Proceedings.
• Publication Date: 1974

Media Info

• Pagination: p. 970-976

Subject/Index Terms

• TRT Terms: Automobiles; Design; Fuel consumption; Steam; Temperature; Thermal efficiency; Transducers
• Old TRIS Terms: Expander
• Subject Areas: Design; Energy; Highways; Safety and Human Factors;

Filing Info

• Accession Number: 00097890
• Record Type: Publication
• Source Agency: Society of Automotive Engineers
• Report/Paper Numbers: SAE #749127 Proceeding
• Files: TRIS
• Created Date: Aug 27 1975 12:00AM