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Preliminary design and analysis of a novel solar receiver for a micro gas-turbine based solar dish system
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)ORCID iD: 0000-0002-3458-2112
KTH, School of Industrial Engineering and Management (ITM), Energy Technology, Heat and Power Technology. (Concentrating Solar Power)
2015 (English)In: Solar Energy, ISSN 0038-092X, E-ISSN 1471-1257, Vol. 114, no 4, 378-396 p.Article in journal (Refereed) Published
Abstract [en]

The solar receiver is one of the key components of hybrid solar micro gas-turbine systems, which would seem to present a number of advantages when compared with Stirling engine based systems and photovoltaic panels. In this study a solar receiver meeting the specific requirements for integration into a small-scale (10 kWel) dish-mounted hybrid solar micro gas-turbine system has been designed with a special focus on the trade-offs between efficiency, pressure drop, material utilization and economic design. A situation analysis, performed using a multi-objective optimizer, has shown that a pressurized configuration, where the solar receiver is placed before the turbine, is superior to an atmospheric configuration with the solar receiver placed after the turbine. Based on these initial design results, coupled CFD/FEM simulations have been performed, allowing detailed analysis of the designs under the expected operating conditions. The results show that the use of volumetric solar receivers to provide heat input to micro gas-turbine based solar dish systems appears to be a promising solution; with material temperatures and material stresses well below permissible limits.

Place, publisher, year, edition, pages
2015. Vol. 114, no 4, 378-396 p.
Keyword [en]
Solar receiver, Micro gas-turbine, Mutli-objective optimization, Coupled CFD/FEM analysis
National Category
Energy Engineering
Identifiers
URN: urn:nbn:se:kth:diva-161705DOI: 10.1016/j.solener.2015.01.013ISI: 000353080700033Scopus ID: 2-s2.0-84924066245OAI: oai:DiVA.org:kth-161705DiVA: diva2:795018
Note

QC 20150324

Available from: 2015-03-13 Created: 2015-03-13 Last updated: 2017-12-04Bibliographically approved

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Aichmayer, LukasSpelling, James

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