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Guidelines for CSP yield analysis – optical losses of line focusing systems; definitions, sensitivity analysis and modeling approaches

Eck, Markus and Hirsch, Tobias and Feldhoff, Jan Fabian and Kretschmann, David and Dersch, Jürgen and Gavilan, Antonio and Gonzales, Lourdes and Bachelier, Camille and Platzer, Werner and Riffelmann, Klaus-Jürgen and Wagner, Michael (2013) Guidelines for CSP yield analysis – optical losses of line focusing systems; definitions, sensitivity analysis and modeling approaches. SolarPACES 2013, 17.-20. Sep. 2013, Las Vegas, USA.

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Abstract

Yield analysis is a crucial task during project deployment of solar thermal power plants. Currently, many different modeling approaches and computer tools for yield analysis are used. Within the SolarPACES project guiSmo, aiming at the development of guidelines for the annual yield prediction of solar thermal power plants, relevant effects for the steady-state modeling of plant sub-systems have been identified [1]. The target of the ongoing project phase is the development of general definitions for all relevant effects. Furthermore, suitable modeling approaches have to be identified and described unambiguously. For every effect, the impact on the predicted electricity yield is estimated in order to assess the significance of the considered effect. Since the most significant effects have to be considered in a subsequent uncertainty analysis, reasonable model and parameter uncertainties have to be defined, too. Finally, default model parameter for state-of-the-art components or subsystems will be edited. Beside the present status of the project, this paper presents investigations on the effects of the optical losses of the sub-system collector field on the annual yield. These effects are namely the peak optical efficiency, incidence angle modifier (IAM), shading and end losses. For each effect, a precise definition is presented and relevant modeling approaches are identified and their pros and cons are discussed. To investigate the influence of these effects, a reference solar thermal power plant with parabolic troughs is defined. The annual yield is simulated for this reference system investigating the identified modeling approaches and assessing their significance.

Item URL in elib:https://elib.dlr.de/86317/
Document Type:Conference or Workshop Item (Speech)
Title:Guidelines for CSP yield analysis – optical losses of line focusing systems; definitions, sensitivity analysis and modeling approaches
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Eck, MarkusDLRUNSPECIFIED
Hirsch, TobiasDLRUNSPECIFIED
Feldhoff, Jan FabianDLRUNSPECIFIED
Kretschmann, DavidUNSPECIFIEDUNSPECIFIED
Dersch, JürgenDLR Institut für SolarforschungUNSPECIFIED
Gavilan, AntonioAbengoaUNSPECIFIED
Gonzales, LourdesCiematUNSPECIFIED
Bachelier, CamilleNovatec Solar GmbHUNSPECIFIED
Platzer, WernerFhG-ISEUNSPECIFIED
Riffelmann, Klaus-JürgenFlagsolUNSPECIFIED
Wagner, MichaelNRELUNSPECIFIED
Date:2013
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:Solar thermal power plants, yield analysis, parabolic trough, linear Fresnel collectors, optical efficiency, incidence angle modifier, shading, end losses
Event Title:SolarPACES 2013
Event Location:Las Vegas, USA
Event Type:international Conference
Event Dates:17.-20. Sep. 2013
Organizer:SolarPACES
HGF - Research field:Energy
HGF - Program:Efficient Energy Conversion and Use (old)
HGF - Program Themes:Energy-efficient Processes (old)
DLR - Research area:Energy
DLR - Program:E EV - Energy process technology
DLR - Research theme (Project):E - Thermochemische Prozesse (old)
Location: Stuttgart
Institutes and Institutions:Institute of Engineering Thermodynamics > Thermal Process Technology
Deposited By: Eck, Markus
Deposited On:09 Dec 2013 14:33
Last Modified:08 May 2014 23:30

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