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Thermal Cycling of Solar Absorber Coatings under Concentrated Solar Flux

Esteller Vela, Marcos (2018) Thermal Cycling of Solar Absorber Coatings under Concentrated Solar Flux. Master's, Universität Stuttgart.

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Abstract

This master thesis describes the followed processes to analyze and characterize optical performance and degradation patterns of different coatings intended to be used as solar radiation absorbers for different CSP technologies in search for improvevents in their performance and durability and enabling the widespread of this renewable energy by reducing its cost. Within RAISELIFE project’s work package 3.1, several experimental absorber coatings (based on T91 and VM12 stainless steel substrates) were tested on a parabolic dish test bench in order to evaluate their degradation patterns and optical performances under concentrated sunlight. This document describes how the complete process was carried out concerning experiment design, setup and execution. It includes detailed description regarding the test bench instrumentation and control software, including early problems detection and further redesigns and modifications. It contains as well detailed procedures followed to experimentally in depth characterization of testbench’s concentrated solar flux and ist comparison with their prediction models. It explores the possibility of radiometer Integration for closing the flux control loop using those characterizations and, as last, it Details laboratory campaigns and analysis results.

Item URL in elib:https://elib.dlr.de/122860/
Document Type:Thesis (Master's)
Title:Thermal Cycling of Solar Absorber Coatings under Concentrated Solar Flux
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Esteller Vela, MarcosSF-QLFUNSPECIFIED
Date:April 2018
Refereed publication:No
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Number of Pages:61
Status:Published
Keywords:optical Performance, Degradation, solar Radiation absrobers, durability, performance
Institution:Universität Stuttgart
Department:Institut für Raumfahrtsysteme
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 10:08
Last Modified:31 Jul 2019 20:20

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