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A techno-economic comparative analysis of thermal oil and molten salt parabolic trough power plants with molten salt solar towers
KTH, School of Industrial Engineering and Management (ITM), Energy Technology.
2019 (English)In: AIP Conference Proceedings, American Institute of Physics (AIP), 2019, Vol. 2126, article id 120014Conference paper, Published paper (Refereed)
Abstract [en]

This study presents a comparison between thermal oil and molten salt parabolic trough power plants as well as molten salt solar towers. Although higher temperature differences in solar towers enable higher power cycle efficiencies, the necessity of large solar fields for increasing turbine capacities and capacity factors pose a limitation through increased attenuation losses. This effect is amplified when unfavourable atmospheric conditions with visibilities of e.g. 15km are present to the extent where 200 MW parabolic trough power plants with molten salt as heat transfer fluid can achieve lower levelised costs of electricity and higher capacity factors than solar towers. Additionally, solar towers require a significantly larger solar field and thus land area as compared to molten salt parabolic through power plants. Moreover, both molten salt parabolic troughs and solar towers outperform thermal oil parabolic trough systems in terms of LCOE and capacity factors.

Place, publisher, year, edition, pages
American Institute of Physics (AIP), 2019. Vol. 2126, article id 120014
Series
AIP Conference Proceedings, ISSN 0094-243X ; 2126
National Category
Energy Engineering
Identifiers
URN: urn:nbn:se:kth:diva-262568DOI: 10.1063/1.5117632Scopus ID: 2-s2.0-85070614006ISBN: 9780735418660 (print)OAI: oai:DiVA.org:kth-262568DiVA, id: diva2:1365371
Conference
24th SolarPACES International Conference on Concentrating Solar Power and Chemical Energy Systems, SolarPACES 2018; Casablanca; Morocco; 2 October 2018 through 5 October 2018
Note

QC 20191024

Available from: 2019-10-24 Created: 2019-10-24 Last updated: 2019-10-24Bibliographically approved

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Guédez, Rafael

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