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Towards an optimal aiming for molten salt power towers

Flesch, Robert and Frantz, Cathy and Maldonado Quinto, Daniel and Schwarzbözl, Peter (2017) Towards an optimal aiming for molten salt power towers. Solar Energy, 155, pp. 1273-1281. Elsevier. DOI: 10.1016/j.solener.2017.07.067 ISSN 0038-092X

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Official URL: http://www.sciencedirect.com/science/article/pii/S0038092X17306527

Abstract

Finding a suitable aiming strategy for receivers of power towers can be challenging, especially for receivers using molten salt as heat transfer fluid as the allowable flux density decreases dramatically with increasing salt temperature. In this paper a very fast, steady-state model for the molten salt receiver is presented. This model is combined with a ray-tracing software and a metaheuristic optimization procedure. The thermal model is used to calculate the actual temperature and mass flow in the receiver which are then used to calculate the operational limits for the flux density. It is demonstrated that such an optimized aiming strategy can outperform a parameter based aiming strategies by more than 2%.

Item URL in elib:https://elib.dlr.de/113517/
Document Type:Article
Title:Towards an optimal aiming for molten salt power towers
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Flesch, RobertRobert.Flesch (at) dlr.dehttps://orcid.org/0000-0003-2725-8039
Frantz, Cathycathy.frantz (at) dlr.deUNSPECIFIED
Maldonado Quinto, DanielDaniel.MaldonadoQuinto (at) dlr.deUNSPECIFIED
Schwarzbözl, Peterpeter.schwarzboezl (at) dlr.deUNSPECIFIED
Date:October 2017
Journal or Publication Title:Solar Energy
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:155
DOI :10.1016/j.solener.2017.07.067
Page Range:pp. 1273-1281
Publisher:Elsevier
ISSN:0038-092X
Status:Published
Keywords:Concentrating solar power; Molten salt receiver; Aim point optimization; Ant colony optimization
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: Jülich
Institutes and Institutions:Institute of Solar Research > Punktfokussierende Systeme
Deposited By: Flesch, Dr.-Ing Robert
Deposited On:09 Aug 2017 10:48
Last Modified:31 Oct 2019 03:00

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