This paper documents a feasibility study on a waste heat recovery system for heavy-duty truck engines based on an organic Rankine cycle (ORC) turbogenerator. The study addresses many of the challenges of a mobile automotive application: The system must be simple, efficient, relatively small, lightweight, and the working fluid must satisfy the many technical, environmental, and toxicological requirements typical of the automotive sector. The choice of a siloxane as the working fluid allows for the preliminary design of an efficient radial turbine, whose shaft can be lubricated by the working fluid itself. The system's heat exchangers, though more voluminous than desirable, are within acceptable limits. The simulated ORC system would add approximately 9.6 kW at the design point, corresponding to a truck engine power output of 150 kW at 1500 rpm. Future work will be devoted to further system and components optimization by means of simulations, to the study of dynamic operation and control, and will be followed by the design and construction of a laboratory test bench for mini-ORC systems and components.
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e-mail: Wolfgang.Lang@ivt.tugraz.at
e-mail: P.Colonna@TUDelft.nl
e-mail: Raimund.Almbauer@ivt.tugraz.at
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April 2013
Research-Article
Assessment of Waste Heat Recovery From a Heavy-Duty Truck Engine by Means of an ORC Turbogenerator
Wolfgang Lang,
e-mail: Wolfgang.Lang@ivt.tugraz.at
Wolfgang Lang
Institute for Internal Combustion
Engines and Thermodynamics
,Graz University of Technology
,Inffeldgasse 21
,Graz, 8010
, Austria
e-mail: Wolfgang.Lang@ivt.tugraz.at
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Piero Colonna,
e-mail: P.Colonna@TUDelft.nl
Piero Colonna
Process and Energy Department
,Delft University of Technology
,Leeghwaterstraat 44
,Delft, 2628 CA
, The Netherlands
e-mail: P.Colonna@TUDelft.nl
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Raimund Almbauer
e-mail: Raimund.Almbauer@ivt.tugraz.at
Raimund Almbauer
Institute for Internal Combustion
Engines and Thermodynamics
,Graz University of Technology
,Inffeldgasse 21
,Graz, 8010
, Austria
e-mail: Raimund.Almbauer@ivt.tugraz.at
Search for other works by this author on:
Wolfgang Lang
Institute for Internal Combustion
Engines and Thermodynamics
,Graz University of Technology
,Inffeldgasse 21
,Graz, 8010
, Austria
e-mail: Wolfgang.Lang@ivt.tugraz.at
Piero Colonna
Process and Energy Department
,Delft University of Technology
,Leeghwaterstraat 44
,Delft, 2628 CA
, The Netherlands
e-mail: P.Colonna@TUDelft.nl
Raimund Almbauer
Institute for Internal Combustion
Engines and Thermodynamics
,Graz University of Technology
,Inffeldgasse 21
,Graz, 8010
, Austria
e-mail: Raimund.Almbauer@ivt.tugraz.at
Contributed by the International Gas Turbine Institute (IGTI) of ASME for publication in the Journal of Engineering for Gas Turbines and Power. Manuscript received March 27, 2012; final manuscript received October 17, 2012; published online March 18, 2013. Assoc. Editor: Joost J. Brasz.
J. Eng. Gas Turbines Power. Apr 2013, 135(4): 042313 (10 pages)
Published Online: March 18, 2013
Article history
Received:
March 27, 2012
Revision Received:
October 17, 2012
Citation
Lang, W., Colonna, P., and Almbauer, R. (March 18, 2013). "Assessment of Waste Heat Recovery From a Heavy-Duty Truck Engine by Means of an ORC Turbogenerator." ASME. J. Eng. Gas Turbines Power. April 2013; 135(4): 042313. https://doi.org/10.1115/1.4023123
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