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A Novel Method for Automatic Real-Time Monitoring of Mirror Soiling Rates

Wolfertstetter, Fabian and Pottler, Klaus and Alami, Ahmed and Mezrhab, Ahmed and Pitz-Paal, Robert (2012) A Novel Method for Automatic Real-Time Monitoring of Mirror Soiling Rates. In: SolarPACES 2012. SolarPACES 2012, 11.-14. Sep. 2012, Marrakesch, Marokko.

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Official URL: http://cms.solarpaces2012.org

Abstract

The effect of soiling of solar concentrators influences the output of solar thermal power plants significantly. The literature values estimate the loss in specular reflectivity due to dust on the mirrors to be as high as 14% or even 26% after a few months. It varies significantly with location. Given the fact that these numbers are quite high and very broadly spread in the literature, project planners and plant operators demand better methods to measure soiling loads in running power plants as well as in resource assessment measurement campaigns. In this paper we introduce a new measurement setup named “TraCS” (Tracking Cleanliness Sensor) that allows for an easier, supposedly more precise and more cost effective measurement of the soiling level of solar mirrors. It will assist power plant operators and maintenance teams to optimize their cleaning cycles based on a real time measurement. At the same time the setup paves the way to including cleanliness as a standard parameter in solar resource assessment. It enables more sophisticated research on the most important weather parameters influencing the soiling rates at different plant sites and on upcoming new coating materials.

Item URL in elib:https://elib.dlr.de/77590/
Document Type:Conference or Workshop Item (Paper)
Title:A Novel Method for Automatic Real-Time Monitoring of Mirror Soiling Rates
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Wolfertstetter, Fabianfabian.wolfertstetter (at) dlr.deUNSPECIFIED
Pottler, KlausDLRUNSPECIFIED
Alami, AhmedUniversité Mohamad I, Oujda, MoroccoUNSPECIFIED
Mezrhab, AhmedUniversité Mohamad I, Oujda, MoroccoUNSPECIFIED
Pitz-Paal, RobertDLRUNSPECIFIED
Date:2012
Journal or Publication Title:SolarPACES 2012
Refereed publication:Yes
Open Access:Yes
Gold Open Access:Yes
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:soiling, cleanliness measurement, site assessment, cleaning optimization, resource assessment
Event Title:SolarPACES 2012
Event Location:Marrakesch, Marokko
Event Type:international Conference
Event Dates:11.-14. Sep. 2012
Organizer:SolarPACES (Solar Power and Chemical Energy Systems)
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: other
Institutes and Institutions:Institute of Solar Research > Qualifizierung
Deposited By: Wolfertstetter, Fabian
Deposited On:06 Dec 2012 17:48
Last Modified:06 Dec 2012 17:48

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