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Quasi-Dynamic Analysis of Thermal Performance of Parabolic Trough Collectors

Janotte, Nicole and Meiser , Siw and Krüger , Dirk and Lüpfert, Eckhard and Pitz-Paal , Robert and Müller-Steinhagen, Hans (2010) Quasi-Dynamic Analysis of Thermal Performance of Parabolic Trough Collectors. Journal of Solar Energy Engineering, 132 (031003 ). American Society of Mechanical Engineers (ASME). ISSN 0199-6231

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Abstract

Thermal performance testing of parabolic trough collectors and collector loops plays an important role in prototype testing, collector certification and solar field commissioning. When testing for thermal performance, power output is calculated from measurements of mass flow, heat capacity and temperature difference between in- and outlet of the collector row. Testing conditions such as ambien temperature, irradiance and wind velocity are recorded. For the application of the commonly used steady-state testing analysis fluctuation especially in inlet temperature, irradiance and mass flow rate must be kept within a very small range. This restricts suitable testing period when testing needs to be carried out outdoors and at commercial installations. Accepting wider ranges of data fluctuations the quasi-dynamic model as well as the data analysis based on deriving model parameters from preprocessed test data by means of mulitple linear regression are described and discussed in this paper. Results are presented and compared to thouse obtained by steady-state analysis. Test of a process heat collector carried out at DLR in Cologne serve as data base for this investigation

Item URL in elib:https://elib.dlr.de/83550/
Document Type:Article
Title:Quasi-Dynamic Analysis of Thermal Performance of Parabolic Trough Collectors
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Janotte, NicoleSFUNSPECIFIED
Meiser , SiwSFUNSPECIFIED
Krüger , DirkSFUNSPECIFIED
Lüpfert, EckhardSFUNSPECIFIED
Pitz-Paal , RobertSFUNSPECIFIED
Müller-Steinhagen, HansTTUNSPECIFIED
Date:2010
Journal or Publication Title:Journal of Solar Energy Engineering
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:132
Publisher:American Society of Mechanical Engineers (ASME)
ISSN:0199-6231
Status:Published
Keywords:parabolic trough, thermal performance testing, quasi-dynamic conditions, combined uncertainty, qualification
HGF - Research field:Energy
HGF - Program:Renewable Energies
HGF - Program Themes:Concentrating Solar Systems (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 Solar Research > Qualifizierung
Deposited By: Kruschinski, Anja
Deposited On:25 Jul 2013 16:59
Last Modified:08 Mar 2018 18:45

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