elib
DLR-Header
DLR-Logo -> http://www.dlr.de
DLR Portal Home | Imprint | Privacy Policy | Contact | Deutsch
Fontsize: [-] Text [+]

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: AIP Conference Proceedings, 2033 (1). SolarPACES 2017, 26.-29. Sept. 2017, Santiago de Chile. DOI: 10.1063/1.5067076

[img] PDF
1MB

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

Abstract

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
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Uhlig, RalfRalf.Uhlig (at) dlr.deUNSPECIFIED
Frantz, Cathycathy.frantz (at) dlr.deUNSPECIFIED
Flesch, RobertRobert.Flesch (at) dlr.dehttps://orcid.org/0000-0003-2725-8039
Fritsch, AndreasAndreas.Fritsch (at) dlr.deUNSPECIFIED
Date:8 November 2018
Journal or Publication Title:AIP Conference Proceedings
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:No
Volume:2033
DOI :10.1063/1.5067076
Status:Published
Keywords:Salt Receiver solar thermal power plant
Event Title:SolarPACES 2017
Event Location:Santiago de Chile
Event Type:international Conference
Event Dates:26.-29. Sept. 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
Location: Stuttgart
Institutes and Institutions:Institute of Solar Research > Solartowersystems
Deposited By: Uhlig, Tamara
Deposited On:17 Dec 2018 10:07
Last Modified:31 Jul 2019 20:21

Repository Staff Only: item control page

Browse
Search
Help & Contact
Information
electronic library is running on EPrints 3.3.12
Copyright © 2008-2017 German Aerospace Center (DLR). All rights reserved.