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Reducing the Number of Turbine Starts in Concentrating Solar Power Plants through the Integration of Thermal Energy Storage
KTH, School of Industrial Engineering and Management (ITM), Energy Technology, Heat and Power Technology. (Concentrated Solar Power)
KTH, School of Industrial Engineering and Management (ITM), Energy Technology, Heat and Power Technology. (Concentrated Solar Power)ORCID iD: 0000-0002-3458-2112
KTH, School of Industrial Engineering and Management (ITM), Energy Technology, Heat and Power Technology. (Concentrated Solar Power)
KTH, School of Industrial Engineering and Management (ITM), Energy Technology, Heat and Power Technology. (Aeromechanics)
2013 (English)In: Proceedings of the ASME TurboExpo 2013, 2013Conference paper, Published paper (Refereed)
Abstract [en]

The operation of steam turbine units in solar thermal power plants is very different than in conventional base-load plants. Due to the variability of the solar resource, much higher frequencies of plant start-ups are encountered. This study provides an insight to the influence of thermal energy storage integration on the typical cycling operation of solar thermal power plants. It is demonstrated that the integration of storage leads to significant reductions in the annual number of turbine starts and is thus beneficial to the turbine lifetime. At the same time, the effects of storage integration on the electricity costs are analyzed to ensure that the designs remain economically competitive. Large storage capacities, can allow the plant to be shifted from a daily starting regime to one where less than 20 plant starts occur annually. Additionally, the concept of equivalent operating hours is used to further analyze the direct impact of storage integration on the maintenance planning of the turbine units.

Place, publisher, year, edition, pages
2013.
National Category
Energy Engineering
Identifiers
URN: urn:nbn:se:kth:diva-126925DOI: 10.1115/GT2013-94562Scopus ID: 2-s2.0-84890162042ISBN: 978-079185518-8 (print)OAI: oai:DiVA.org:kth-126925DiVA: diva2:642590
Conference
ASME Turbo Expo 2013, Turbine Technical Conference and Exposition, GT 2013; San Antonio, Tx, United States, 3-7 June 2013
Note

QC 20140107

Available from: 2013-08-22 Created: 2013-08-22 Last updated: 2015-03-04Bibliographically approved

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Spelling, James

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CiteExportLink to record
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Citation style
  • apa
  • harvard1
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  • Other style
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  • de-DE
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  • Other locale
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Output format
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