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INFLUENCE OF MEASUREMENT EQUIPMENT ON THE UNCERTAINTY OF PERFORMANCE DATA FROM TEST LOOPS FOR CONCENTRATING SOLAR COLLECTORS

Janotte, Nicole and Lüpfert, Eckhard and Pitz-Paal, Robert and Pottler, Klaus and Eck, Markus and Zarza, Eduardo and Riffelmann, Klaus-Jürgen (2008) INFLUENCE OF MEASUREMENT EQUIPMENT ON THE UNCERTAINTY OF PERFORMANCE DATA FROM TEST LOOPS FOR CONCENTRATING SOLAR COLLECTORS. In: 14th SolarPACES Symposium. 14th SolarPACES Symposium, 2008-03-04 -2008-03-07, Las Vegas, NV (USA).

Full text not available from this repository.

Abstract

Parabolic trough concentrating collectors play a major role in the energy efficiency and economics of concentrating solar power plants. Therefore, existing collector systems are constantly enhanced and new types developed. Thermal performance testing is one step generally required in the course of their testing and qualification. For outdoor tests of prototypes a heat transfer fluid loop (single collectors or entire loop) needs to be equipped with measurement sensors for inlet, outlet and ambient temperature as well as irradiance, wind speed and mass or volumetric flow sensors to evaluate the heat balance. Assessing the individual measurement uncertainties and their impact on the combined uncertainty of the desired measurement quantity one obtains the significance of the testing results. The method has been applied to the EuroTrough collector tests performed at PSA. Test results include the uncertainty range of the resulting modeling function and exemplify the effects of the sensors and their specifications on the parameters. Recommendations for suitable sensor types and classes as well as the required number of sensors and their location are given on the basis of experience gained during tests of concentrating collectors.

Document Type:Conference or Workshop Item (Speech, Paper)
Title:INFLUENCE OF MEASUREMENT EQUIPMENT ON THE UNCERTAINTY OF PERFORMANCE DATA FROM TEST LOOPS FOR CONCENTRATING SOLAR COLLECTORS
Authors:
AuthorsInstitution or Email of Authors
Janotte, NicoleUNSPECIFIED
Lüpfert, EckhardUNSPECIFIED
Pitz-Paal, RobertUNSPECIFIED
Pottler, KlausUNSPECIFIED
Eck, MarkusUNSPECIFIED
Zarza, EduardoCiemat - Plataforma Solar de Almería
Riffelmann, Klaus-JürgenFlagsol GmbH
Date:March 2008
Journal or Publication Title:14th SolarPACES Symposium
Refereed publication:Yes
In ISI Web of Science:Yes
Editors:
EditorsEmail
SolarPACES, UNSPECIFIED
Status:Published
Keywords:parabolic trough, extended prototype testing, efficiency, thermal measurement, measurement uncertainty, combined uncertainty, qualification
Event Title:14th SolarPACES Symposium
Event Location:Las Vegas, NV (USA)
Event Type:international Conference
Event Dates:2008-03-04 -2008-03-07
Organizer:SolarPACES
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 , other , Stuttgart
Institutes and Institutions:Institute of Technical Thermodynamics > Solar Research
Deposited By: Nicole Janotte
Deposited On:28 Jul 2008
Last Modified:27 Apr 2009 15:04

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