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Thermo-mechanical solar receiver design and validation 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.ORCID iD: 0000-0003-1792-0551
KTH, School of Industrial Engineering and Management (ITM), Energy Technology, Heat and Power Technology.ORCID iD: 0000-0001-7193-5303
2020 (English)In: Energy, ISSN 0360-5442, E-ISSN 1873-6785, Vol. 196, article id 116929Article in journal (Refereed) Published
Abstract [en]

This work presents the comprehensive development of a solar receiver for the integration into a micro gas-turbine solar dish system. Special focus is placed on the thermo-mechanical design to ensure the structural integrity of all receiver components for a wide range of operating conditions. For the development, a 3-dimensional coupled multi-physics model is established and is validated using experimental data. Contrary to previous studies, the temperature of the irradiated front surface of the absorber is included in the comprehensive validation process which results in a high level of confidence in the receiver design.

Finally, a full-scale solar receiver for the integration into the OMSoP solar dish system is designed and its performance determined for a wide operating range to define its safe operating envelope using the validated model. It is shown that the receiver is capable of operating at 803_C with an efficiency of 82.1% and a pressure drop of 0.3% at the nominal operating point, while at the same time functioning effectively   for a wide range of off-design conditions without compromising its structural integrity. At the nominal operating point, the maximum comparison stress of the porous absorber is 5.6 MPa compared to a permissible limit of 7.4 MPa.

Place, publisher, year, edition, pages
2020. Vol. 196, article id 116929
Keywords [en]
High-temperature solar air receiver development; Multi-point model validation; Experimental evaluation; Off-design performance; Safe operating envelope
National Category
Energy Engineering
Research subject
Energy Technology
Identifiers
URN: urn:nbn:se:kth:diva-272186DOI: 10.1016/j.energy.2020.116929ISI: 000527567200085Scopus ID: 2-s2.0-85078984979OAI: oai:DiVA.org:kth-272186DiVA, id: diva2:1424698
Note

QC 20200427

Available from: 2020-04-19 Created: 2020-04-19 Last updated: 2024-03-18Bibliographically approved

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Aichmayer, LukasGarrido, JorgeLaumert, Björn

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