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Thermoeconomic Evaluation of a Novel Utility-Scale Hybrid Solar Dish Micro Gas-Turbine Power Plant
IMDEA Energy Institute, High Temperature Processes Unit, Móstoles, Spain.
KTH, School of Industrial Engineering and Management (ITM), Energy Technology, Heat and Power Technology. (Concentrating Solar Power)ORCID iD: 0000-0003-3789-8654
KTH, School of Industrial Engineering and Management (ITM), Energy Technology, Heat and Power Technology. (Concentrating Solar Power)
2015 (English)In: ASME TURBO EXPO: TURBINE TECHNICAL CONFERENCE AND EXPOSITION, 2015, VOL 3, ASME Press, 2015Conference paper (Refereed)
Abstract [en]

A novel solar power plant concept is presented, based on the use of a coupled network of hybrid solar-dish micro gas-turbines, driving a centralized heat recovery steam generator and steam-cycle, thereby seeking to combine the high collector efficiency of the solar dish with the high conversion efficiency of a combined-cycle power block. To explore the potential of the concept, its performance has been compared against a more conventional solar dish farm based on recuperated micro gas-turbines. Multi-objective optimization has been used to identify Pareto-optimal designs and examine the trade-offs between minimizing capital costs and maximizing performance. The micro gas-turbine combined-cycle layout has been shown to be promising for utility-scale applications, reducing electricity costs by 5–10%, depending on the degree of solar integration; this novel power plant layout also reduces emissions through increased conversion efficiency of the power block. However, at smaller plant sizes (outputs below 18 MWe), more traditional recuperated solar dish farms remain the most viable option.

Place, publisher, year, edition, pages
ASME Press, 2015.
National Category
Energy Engineering
URN: urn:nbn:se:kth:diva-183002DOI: 10.1115/GT2015-42368ISI: 000380084500020ScopusID: 2-s2.0-84954357535ISBN: 978-0-7918-5667-3OAI: diva2:906428
ASME Turbo Expo 2015: Turbine Technical Conference and Exposition, GT 2015; Montreal; Canada; 15 June 2015 through 19 June 2015

QC 20160311

Available from: 2016-02-24 Created: 2016-02-24 Last updated: 2016-08-23Bibliographically approved

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Spelling, JamesAichmayer, LukasLaumert, Björn
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