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Stress analysis of external molten salt receiver

Uhlig, Ralf and Frantz, Cathy and Flesch, Robert and Fritsch, Andreas (2018) Stress analysis of external molten salt receiver. In: 23rd International Conference on Concentrating Solar Power and Chemical Energy Systems, SolarPACES 2017, 2033 (1). AIP Publishing. SolarPACES 2017, 2017-09-26 - 2017-09-29, Santiago de Chile. doi: 10.1063/1.5067076. ISSN 0094-243X.

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Official URL: https://aip.scitation.org/doi/abs/10.1063/1.5067076


Commercial solar thermal power plant projects using central receivers with molten salt as a heat transfer fluid are dominating the market. Due to the complex load situation, especially the inhomogeneous heat flux distribution, the receiver components are subjected to complex thermo-mechanical loads. Transients from operation like clouds, start up and and shut down lead to fatigue of the components. Furthermore, the filling process could be critical due thermal gradients between salt and the metallic components. In this paper, a work flow is presented and results applied at the receiver of the Solar Two experiment to demonstrate the methodology. Thermal models (FE and CFD) are used to deduce the thermal field for different operational situations and a stress analysis is carried out. It was found that highest stresses occur at the absorber tubes for maximum flux density operation (inlet panel). The stresses caused by the filling process are much lower.

Item URL in elib:https://elib.dlr.de/124090/
Document Type:Conference or Workshop Item (Speech, Poster)
Title:Stress analysis of external molten salt receiver
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Flesch, RobertUNSPECIFIEDhttps://orcid.org/0000-0003-2725-8039UNSPECIFIED
Date:8 November 2018
Journal or Publication Title:23rd International Conference on Concentrating Solar Power and Chemical Energy Systems, SolarPACES 2017
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In ISI Web of Science:No
Publisher:AIP Publishing
Series Name:AIP Conference Proceedings
Keywords:Salt Receiver solar thermal power plant
Event Title:SolarPACES 2017
Event Location:Santiago de Chile
Event Type:international Conference
Event Start Date:26 September 2017
Event End Date:29 September 2017
HGF - Research field:Energy
HGF - Program:Renewable Energies
HGF - Program Themes:Concentrating Solar Thermal Technology
DLR - Research area:Energy
DLR - Program:E SW - Solar and Wind Energy
DLR - Research theme (Project):E - Advanced Heat Transfer Media (old)
Location: Stuttgart
Institutes and Institutions:Institute of Solar Research > Solartowersystems
Deposited By: Uhlig, Tamara
Deposited On:17 Dec 2018 10:07
Last Modified:24 Apr 2024 20:28

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