Evaluation of fuel saving and economics for an organic rankine cycle as bottoming cycle in utility vehicles

Richard Aumann, Andreas Grill, Andreas Schuster, Hartmut Spliethoff

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Waste heat recovery for power production by means of ORC is on the threshold to market and can be considered to be state of the art in the power range above 50 kWel. However the utilization of waste heat from internal combustion engines in vehicles is being discussed very recently. In this paper the fuel and respectively the cost saving potential for the national economies with such systems is evaluated and discussed. Measurement results of waste heat potential in real driving cycle are presented and compared to test bench data. An approach for the design point identification for highway driving of heavy utility vehicles is shown. Based on a simulation of real part load behavior of components like heat exchangers and expansion machines the system efficiency of an experimental ORC system is calculated. Finally fuel saving potential for an experimental prototype set up is determined. The potential of this technology for national economies is calculated in an elementary way and compared to other technologies.

Original languageEnglish
Title of host publicationCycles and Buildings
PublisherAabo Akademi University
Pages59-66
Number of pages8
ISBN (Print)9781456303143
StatePublished - 2010
Event23rd International Conference on Efficiency, Cost, Optimization, Simulation, and Environmental Impact of Energy Systems, ECOS 2010 - Lausanne, Switzerland
Duration: 14 Jun 201017 Jun 2010

Publication series

NameProceedings of the 23rd International Conference on Efficiency, Cost, Optimization, Simulation, and Environmental Impact of Energy Systems, ECOS 2010
Volume3

Conference

Conference23rd International Conference on Efficiency, Cost, Optimization, Simulation, and Environmental Impact of Energy Systems, ECOS 2010
Country/TerritorySwitzerland
CityLausanne
Period14/06/1017/06/10

Keywords

  • Dynamic heat source
  • Organic rankine cycle (ORC)
  • Utility vehicles
  • Waste heat recovery

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