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Experimental Analysis of Overall Thermal Properties of Parabolic Trough Receivers

Lüpfert, Eckhard and Riffelmann, Klaus-Jürgen and Price, Henry and Burkholder, Frank and Moss, Timothy (2008) Experimental Analysis of Overall Thermal Properties of Parabolic Trough Receivers. Journal of Solar Energy Engineering, 130 (2). Transactions of the ASME. ISSN 0199-6231 (In Press)

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The heat loss of a receiver in a parabolic trough collector plays an important role in collector performance. A number of methods have been used to measure the thermal loss of a receiver tube depending on its operating temperature. This paper presents methods for measuring receiver heat losses including field measurements and laboratory set-ups both based on energy balances from the hot inside of the receiver tube to the ambient. Further approaches are presented to measure and analyze the temperature of the glass envelope of evacuated receivers and to model overall heat losses and emissivity coefficients of the receiver. Good agreement can be found between very different approaches and independent installations. For solar parabolic trough plants operating in the usual 390°C temperature range, the thermal loss is around 300W/m receiver length.

Item URL in elib:https://elib.dlr.de/53220/
Document Type:Article
Title:Experimental Analysis of Overall Thermal Properties of Parabolic Trough Receivers
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Riffelmann, Klaus-JürgenFlagsolUNSPECIFIED
Price, HenryAbengoaUNSPECIFIED
Moss, TimothySandiaUNSPECIFIED
Date:May 2008
Journal or Publication Title:Journal of Solar Energy Engineering
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:Yes
Publisher:Transactions of the ASME
Status:In Press
Keywords:Solar Thermal Power, Parabolic Trough, Receiver, Heat Loss
HGF - Research field:Energy
HGF - Program:Renewable Energies
HGF - Program Themes:E SF - Solar research (old)
DLR - Research area:Energy
DLR - Program:E SF - Solar research
DLR - Research theme (Project):E - Qualifizierung (old)
Location: Köln-Porz
Institutes and Institutions:Institute of Engineering Thermodynamics > Solar Research
Deposited By: Lüpfert, Dr.-Ing. Eckhard
Deposited On:18 Feb 2008
Last Modified:27 Apr 2009 14:43

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