A MULTI-VANE EXPANDER, B4 ADDING POWER, CAN IMPROVE THE FUEL ECONOMY OF LONG-HAUL DIESEL TRUCKS
An organic Rankine Bottoming Cycle added to Diesel engines used for long-haul trucks has the potential of improving their peak fuel economy by up to 15% over a typical duty cycle. General Electric has developed a multi-vane rotary expander which has a measured isentropic brake efficiency of 80% over a wide range of speed and power levels with organic working fluids. This paper describes the design and evaluation of a nominal 40 HP multi-vane expander for this application. The results of preliminary cycle analysis and preliminary hardware evaluation lead to the conclusion that the multi-vane rotary expander is an attractive alternate to a high-speed turbine/gearbox combination.
Warrendale, PA USA 15096
- Robertson Jr, C S
- Eckard, S E
- Publication Date: 1978-8
- Pagination: 19 p.
- TRT Terms: Diesel engines; Engines; Fuel consumption; Improvements; Rankine engines; Transducers; Trucks
- Old TRIS Terms: Expander; Rankine cycle; Truck engines
- Subject Areas: Energy; Highways; Motor Carriers; Vehicles and Equipment;
- Accession Number: 00308719
- Record Type: Publication
- Report/Paper Numbers: SAE 780689
- Files: TRIS
- Created Date: May 21 1980 12:00AM