Multi-objective optimization of a low-temperature transcritical organic Rankine cycle for waste heat recovery

Lecompte, S.; Lazova, M.; Van den Broek, M.; De Paepe, M.

dc.contributor.author	Lecompte, S.
dc.contributor.author	Lazova, M.
dc.contributor.author	Van den Broek, M.
dc.contributor.author	De Paepe, M.
dc.date.accessioned	2015-04-24T07:54:58Z
dc.date.available	2015-04-24T07:54:58Z
dc.date.issued	2014
dc.description.abstract	Paper presented to the 10th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, Florida, 14-16 July 2014.	en_ZA
dc.description.abstract	The subcritical Organic Rankine Cycle (SCORC) is widely recognized as a viable technology for converting waste heat to electricity. However, a relative large exergy share is destroyed in the evaporator because of the subcritical heat exchange process. A transcritical cycle has the potential to reduce these irreversibilities in detriment of a financial cost. Therefore the inclusion of financial parameters is crucial for a sound comparison. First, a thermo-hydraulic sizing model for the supercritical ORC is developed. Second, from this model a thermo-economic analysis is provided based on a multi-objective optimization. The Pareto front of net power output versus investment costs are compared for the subcritical and transcritical ORC. Also a single objective criterion, the minimum specific investment cost, is calculated. The results can be used as a guideline to the design of new ORCs.	en_ZA
dc.description.librarian	dc2015	en_ZA
dc.format.extent	6 pages	en_ZA
dc.format.medium	PDF	en_ZA
dc.identifier.citation	Lecompte, S, Lazova, M, van den Broek, M & De Paepe, M 2014, 'Multi-objective optimization of a low-temperature transcritical organic Rankine cycle for waste heat recovery', Paper presented to the 10th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, Florida, 14-16 July 2014.	en_ZA
dc.identifier.isbn	97817759206873
dc.identifier.uri	http://hdl.handle.net/2263/44747
dc.publisher	International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics	en_ZA
dc.rights	© 2014 University of Pretoria. All rights reserved. The copyright in this work vests in the University of Pretoria. No part of this work may be reproduced or transmitted in any form or by any means, without the prior written permission of the University of Pretoria.	en_ZA
dc.subject	Subcritical Organic Rankine Cycle	en_ZA
dc.subject	Organic Rankine Cycle	en_ZA
dc.subject	SCORC	en_ZA
dc.subject	Thermo-hydraulic sizing model	en_ZA
dc.title	Multi-objective optimization of a low-temperature transcritical organic Rankine cycle for waste heat recovery	en_ZA
dc.type	Presentation	en_ZA