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Performance assessment of an improved open volumetric receiver design with 240 MWth

Stadler, Hannes and Schwarzbözl, Peter and Maldonado Quinto, Daniel and Broeske, Robin Tim and Andlauer, Felix and Trautner, Johannes and Schrüfer, Johannes (2019) Performance assessment of an improved open volumetric receiver design with 240 MWth. In: AIP Conference Proceedings, 2126, 030057. SolarPACES 2018: International Conference on Concentrating Solar Power and Chemical Energy Systems, 2–5 October 2018, Casablanca, Morocco. DOI: 10.1063/1.5117569 ISBN 978-0-7354-1866-0 ISSN 0094-243X

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Official URL: http://dx.doi.org/10.1063/1.5117569

Abstract

Due to their proved robustness, good operating characteristics and the easy way to include thermal storage open volumetric receivers with air as heat transfer fluid are an interesting alternative for central receiver power plants. This alternative represents a significant step forward in plant availability and technical controllability to achieve the terminal goal of high probabilities and expectancy levels of annual electric yields representing the basis for the competitiveness and dissemination of dispatchable solar thermal systems. Though high availability has been shown in demanding transient and part load cases a permanent goal is to increase further efficiencies for future commercial scale receivers. In the current study a novel receiver design for a 240 MWth solar tower is presented which was optimised for reduced radiative losses and high air return ratios - a crucial parameter for obtaining high efficiencies of open volumetric receivers. With the help of a CFD model, which was recently specifically developed for the simulation of open volumetric receivers, the performance of the new receiver design was assessed. Under design conditions of 670°C hot air and 270°C return air temperature the receiver efficiency based on the intercept on the absorber reaches 84.3% and the air return ratio reaches 84.8%. At reduced hot air temperature of 560°C the efficiency even exceeds 90%.

Item URL in elib:https://elib.dlr.de/130351/
Document Type:Conference or Workshop Item (Speech)
Title:Performance assessment of an improved open volumetric receiver design with 240 MWth
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Stadler, Hanneshannes.stadler (at) dlr.dehttps://orcid.org/0000-0001-5122-4221
Schwarzbözl, Peterpeter.schwarzboezl (at) dlr.deUNSPECIFIED
Maldonado Quinto, Danieldaniel.maldonadoquinto (at) dlr.deUNSPECIFIED
Broeske, Robin TimRobin.Broeske (at) dlr.deUNSPECIFIED
Andlauer, FelixKraftanlagen MünchenUNSPECIFIED
Trautner, JohannesKraftanlagen München GmbH, Ridler Straße 31c, 80339 München, GermanyUNSPECIFIED
Schrüfer, Johannesjohannes.schruefer (at) kraftanlagen.comUNSPECIFIED
Date:2019
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:2126
DOI :10.1063/1.5117569
Page Range:030057
Editors:
EditorsEmail
Richter, Christophchristoph.richter@dlr.de
ISSN:0094-243X
ISBN:978-0-7354-1866-0
Status:Published
Keywords:open volumetric receiver, air return, cavity Receiver, CFD simulation
Event Title:SolarPACES 2018: International Conference on Concentrating Solar Power and Chemical Energy Systems
Event Location:Casablanca, Morocco
Event Type:international Conference
Event Dates:2–5 October 2018
Organizer:SolarPACES
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: Köln-Porz
Institutes and Institutions:Institute of Solar Research > Solar Power Plant Technology
Deposited By: Schwarzbözl, Peter
Deposited On:19 Nov 2019 15:54
Last Modified:19 Nov 2019 15:54

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