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Spectral characterisation of high temperature solar absorber coating

Herding, Leslie (2018) Spectral characterisation of high temperature solar absorber coating. Master's, Technische Hochschule Köln.

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In the course of the Raiselife project, four solar absorber coatings are to be evaluated after thermal cycling at a dish facility. One key parameter is the thermal emittance. Optical measurements carried out at PSA show a deviation between two complementary spectrophotometers. Different approaches for the mismatch correction are applied. After the successful correction, a new measurement routine following DIN EN ISO 22795-3 is defined and the corrected values are evaluated with a round robin campaign. The standard deviation of thermal emittance values determined by different participating laboratories can be reduced by implementing a common processing of spectral data. The postprocessed DLR/CIEMAT value deviates around 2.1 % from the mean value determined within the round robin campaign. A new calibrated reference standard promises a further reduction of the deviation and hence an improvement in the absorber coatings’ thermal efficiency characterisation.

Item URL in elib:https://elib.dlr.de/122863/
Document Type:Thesis (Master's)
Title:Spectral characterisation of high temperature solar absorber coating
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Date:20 February 2018
Refereed publication:No
Open Access:Yes
Gold Open Access:No
In ISI Web of Science:No
Number of Pages:75
Keywords:concentrating solar power, spectrophotometry, round robin, solar absorptance, thermal emittance, solar absorber coatings
Institution:Technische Hochschule Köln
Department:Cologne Institute for Renewable Energies
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
Location: Köln-Porz
Institutes and Institutions:Institute of Solar Research > Qualification
Deposited By: Kruschinski, Anja
Deposited On:12 Nov 2018 10:09
Last Modified:31 Jul 2019 20:20

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