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Effect of cavity surface material on the concentrated solar flux distribution for an impinging receiver
KTH, School of Industrial Engineering and Management (ITM), Energy Technology, Heat and Power Technology.
KTH, School of Industrial Engineering and Management (ITM), Energy Technology, Heat and Power Technology.
2017 (English)In: Solar Energy Materials and Solar Cells, ISSN 0927-0248, E-ISSN 1879-3398, Vol. 161, 177-182 p.Article in journal (Refereed) Published
Abstract [en]

In this paper, the effects of cavity surface materials on the radiative flux distribution of solar cavity receivers have been studied with the help of a ray-tracing methodology. Three metallic substrate materials (Inconel 600, austenitic stainless steel 253 MA and Kanthal APM) and two coating materials (Pyromark® 2500 coating and YSZ TBC coating) were selected as the candidate cavity surface materials. The results show that the flux distribution and the total optical efficiency are much more sensitive to the absorptivity on the cylindrical surface than on the bottom. By using high absorptivity coating on the cylindrical surface and low absorptivity coating on the bottom, the radiative flux on the bottom can be controlled at a low level, and it can help to reduce the cavity length for an impinging receiver with jets on the cylindrical surface. Furthermore, the radiative flux distribution on the cylindrical surface can also be tailored to meet various design requirements by applying different coating designs on the cylindrical surface.

Place, publisher, year, edition, pages
Elsevier, 2017. Vol. 161, 177-182 p.
Keyword [en]
Absorptivity, Cavity receiver, Concentrated solar power, Parabolic dish, Ray tracing
National Category
Energy Engineering
Research subject
Energy Technology
Identifiers
URN: urn:nbn:se:kth:diva-199190DOI: 10.1016/j.solmat.2016.12.008ISI: 000393347000018Scopus ID: 2-s2.0-85000948410OAI: oai:DiVA.org:kth-199190DiVA: diva2:1060537
Funder
EU, FP7, Seventh Framework Programme, 308952
Note

QC 20170103

Available from: 2016-12-28 Created: 2016-12-28 Last updated: 2017-03-13Bibliographically approved

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CiteExportLink to record
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Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
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More styles
Language
  • de-DE
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  • nn-NO
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  • Other locale
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Output format
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