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A way to increase parabolic trough plant yield by roughly 2% using all sky imager derived DNI maps

Nouri, Bijan and Noureldin, Kareem and Schlichting, Tim and Wilbert, Stefan and Hirsch, Tobias and Schroedter-Homscheidt, Marion and Kuhn, Pascal Moritz and Kazantzidis, A. and Zarzalejo, L.F. and Blanc, Philipp and Yasser, Zeyad and Fernández, Jesús and Pitz-Paal, Robert (2020) A way to increase parabolic trough plant yield by roughly 2% using all sky imager derived DNI maps. In: 2019 International Conference on Concentrating Solar Power and Chemical Energy Systems, SolarPACES 2019, 2303 (110005). AIP Publishing. SolarPACES Conference 2019, 2019-10-01 - 2019-10-04, Daegu, South Corea. doi: 10.1063/5.0028667. ISBN 978-073544037-1. ISSN 0094-243X.

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Official URL: https://doi.org/10.1063/5.0028667


Solar fields of parabolic troughs are extensive complex thermal hydraulic facilities. Intra-hour and intra-minute variabilities of the DNI, mainly caused by passing clouds, pose an operational challenge for parabolic trough power plants. Under perfect circumstances a solar field controller would adjusts the mass flow in such a way, that the design temperature is always maintained constant with a maximized focus rate. However, heterogeneous irradiance conditions or flow distribution may cause some solar field sections to temporarily overheat while others may not reach the set point temperature, which in turn leads to an economic loss. State of the art solar field controllers have only access to incomplete information on spatial DNI variability, from DNI measurements of few pyrheliometers. Solar field controllers could be optimized with access to highly resolved DNI informations both in space and time. Such DNI information can be provided by all sky imager (ASI) based irradiance monitoring systems. In a previous study we developed and benchmarked new solar field controllers with access to spatial DNI information from an ASI system for a 50 MWe plant close to Córdoba (Spain). Significant improvements in revenue were observed. Yet, this previous study was limited to 22 days only. In this study, we estimate the potential benefit of these new solar field controllers over a 2 year period on the basis of the simulation results over 22 days. The upscaling method makes use of DNI variability classes. Using the ASI data we obtain a significant improvement in revenue up to 2% for the 2 year period.

Item URL in elib:https://elib.dlr.de/139993/
Document Type:Conference or Workshop Item (Speech)
Title:A way to increase parabolic trough plant yield by roughly 2% using all sky imager derived DNI maps
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Nouri, BijanUNSPECIFIEDhttps://orcid.org/0000-0002-9891-1974UNSPECIFIED
Noureldin, KareemUNSPECIFIEDhttps://orcid.org/0000-0003-3833-2425UNSPECIFIED
Schlichting, TimUNSPECIFIEDhttps://orcid.org/0000-0001-7278-1166UNSPECIFIED
Wilbert, StefanUNSPECIFIEDhttps://orcid.org/0000-0003-3573-3004UNSPECIFIED
Hirsch, TobiasUNSPECIFIEDhttps://orcid.org/0000-0003-0063-0128UNSPECIFIED
Schroedter-Homscheidt, MarionUNSPECIFIEDhttps://orcid.org/0000-0002-1854-903XUNSPECIFIED
Kuhn, Pascal MoritzUNSPECIFIEDhttps://orcid.org/0000-0001-9978-5706UNSPECIFIED
Kazantzidis, A.Lab. of Atm. Physics, Uni Patras, GreeceUNSPECIFIEDUNSPECIFIED
Blanc, PhilippEcole des Mines de ParisUNSPECIFIEDUNSPECIFIED
Fernández, JesúsCIEMAT - Plataforma Solar de AlmeríaUNSPECIFIEDUNSPECIFIED
Pitz-Paal, RobertUNSPECIFIEDhttps://orcid.org/0000-0002-3542-3391UNSPECIFIED
Date:December 2020
Journal or Publication Title:2019 International Conference on Concentrating Solar Power and Chemical Energy Systems, SolarPACES 2019
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In ISI Web of Science:Yes
Publisher:AIP Publishing
Series Name:AIP Conference Proceedings
Keywords:parabolic torugh, DNI variability, all sky imager,
Event Title:SolarPACES Conference 2019
Event Location:Daegu, South Corea
Event Type:international Conference
Event Start Date:1 October 2019
Event End Date:4 October 2019
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 - Impact of Desert Environment (old)
Location: Köln-Porz
Institutes and Institutions:Institute of Solar Research > Qualification
Institute of Networked Energy Systems > Energy Systems Analysis
Institute of Solar Research > Solar High Temperature Technologies
Deposited By: Kruschinski, Anja
Deposited On:04 Jan 2021 12:01
Last Modified:24 Apr 2024 20:41

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