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Techno-economic optimization of a scaled-up solar concentrator combined with CSPonD thermal energy storage
KTH, School of Industrial Engineering and Management (ITM), Energy Technology, Heat and Power Technology.
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2017 (English)In: SolarPACES 2016: International Conference on Concentrating Solar Power and Chemical Energy Systems : 11-14 October 2016, Abu Dhabi, United Arab Emirates, American Institute of Physics (AIP), 2017, Vol. 1850, article id 110010Conference paper (Refereed)
Abstract [en]

A molten salt direct absorption receiver, CSPonD, used to simultaneously collect and store thermal energy is being tested by Masdar Institute and MIT in Abu Dhabi, UAE. Whilst a research-scale prototype has been combined with a beam-down tower in Abu Dhabi, the original design coupled the receiver with a hillside heliostat field. With respect to a conventional power-tower setup, a hillside solar field presents the advantages of eliminating tower costs, heat tracing equipment, and high-pressure pumps. This analysis considers the industrial viability of the CSPonD concept by modeling a 10 MWe up-scaled version of a molten salt direct absorption receiver combined with a hillside heliostat field. Five different slope angles are initially simulated to determine the optimum choice using a combination of lowest LCOE and highest IRR, and sensitivity analyses are carried out based on thermal energy storage duration, power output, and feed-in tariff price. Finally, multi-objective optimization is undertaken to determine a Pareto front representing optimum cases. The study indicates that a 40° slope and a combination of 14 h thermal energy storage with a 40-50 MWe power output provide the best techno-economic results. By selecting one simulated result and using a feed-in tariff of 0.25 /kWh, a competitive IRR of 15.01 % can be achieved.

Place, publisher, year, edition, pages
American Institute of Physics (AIP), 2017. Vol. 1850, article id 110010
Series
AIP Conference Proceedings, ISSN 0094-243X ; 1850
National Category
Energy Systems
Identifiers
URN: urn:nbn:se:kth:diva-212486DOI: 10.1063/1.4984484Scopus ID: 2-s2.0-85023619138ISBN: 9780735415225 (print)OAI: oai:DiVA.org:kth-212486DiVA, id: diva2:1135108
Conference
22nd International Conference on Concentrating Solar Power and Chemical Energy Systems, SolarPACES 2016, 11 October 2016 through 14 October 2016
Note

QC 20170822

Available from: 2017-08-22 Created: 2017-08-22 Last updated: 2017-08-22Bibliographically approved

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CiteExportLink to record
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Citation style
  • apa
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