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Energies 2015, 8(4), 2714-2741; doi:10.3390/en8042714

Multi-Objective Thermo-Economic Optimization Strategy for ORCs Applied to Subcritical and Transcritical Cycles for Waste Heat Recovery

Department of Flow, Heat and Combustion Mechanics, Ghent University-UGent, Sint-Pietersnieuwstraat 41, 9000 Gent, Belgium
Department of Engineering Management, University of Antwerp, Prinsstraat 13, 2000 Antwerp, Belgium
Author to whom correspondence should be addressed.
Academic Editor: Roberto Capata
Received: 30 January 2015 / Revised: 13 March 2015 / Accepted: 30 March 2015 / Published: 9 April 2015
(This article belongs to the Special Issue Organic Rankine Cycle (ORC))
View Full-Text   |   Download PDF [423 KB, uploaded 9 April 2015]   |  


Organic Rankine cycles (ORCs) are an established technology to convert waste heat to electricity. Although several commercial implementations exist, there is still considerable potential for thermo-economic optimization. As such, a novel framework for designing optimized ORC systems is proposed based on a multi-objective optimization scheme in combination with financial appraisal in a post-processing step. The suggested methodology provides the flexibility to quickly assess several economic scenarios and this without the need of knowing the complex design procedure. This novel way of optimizing and interpreting results is applied to a waste heat recovery case. Both the transcritical ORC and subcritical ORC are investigated and compared using the suggested optimization strategy. View Full-Text
Keywords: organic Rankine cycle (ORC); thermo-economic; optimization; subcritical; transcritical organic Rankine cycle (ORC); thermo-economic; optimization; subcritical; transcritical

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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Lecompte, S.; Lemmens, S.; Huisseune, H.; van den Broek, M.; De Paepe, M. Multi-Objective Thermo-Economic Optimization Strategy for ORCs Applied to Subcritical and Transcritical Cycles for Waste Heat Recovery. Energies 2015, 8, 2714-2741.

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