Bentham Science Publishers
    
Search | Advanced Search

 

The Open Fuels & Energy Science Journal

Volume 1
ISSN: 1876-973X

 


Contents
 
  The Energetic Performance of Vehicles
  pp.11-18 (8) Author: J. L. Radtke
doi: 10.2174/1876973X00801010011

Abstract
 

Various methods of determining the energetic performance of vehicles were described and compared. Earlier work emphasized maximum vehicle power and theoretical performance limits, and characterized the vehicle or payload in terms of weight. Energetic efficiency was calculated here as the payload mass times distance moved divided by thermal energy used. This efficiency was multiplied by average speed to yield an energetic performance parameter that was expressed in seconds, using SI units. The differential form of this parameter was twice the useful payload kinetic energy divided by thermal power expenditure. A transportation matrix was developed, describing how vehicles are most commonly used in terms of speed, efficiency, GHG emissions, payload mass and energetic performance. Vehicles with the highest level of energetic performance have efficient powerplants, high payload to gross mass ratios, or reduced friction with the surrounding environment.

Keywords: Energetic performance, Gabrielli-von Karman limit, vehicle efficiency, vehicle performance
Affiliation: Neodymics, P.O. Box 55252, Madison, WI 53705, USA.
           

  BENTHAM OPEN
www.bentham.org/open


  Copyright © 1994 - 2010   Bentham Open