Ultraviolet Concentration Factor of a Truncated Compound Parabolic Concentrator under Different Weather Conditions

Research output: Contribution to journalArticle (Contribution to Journal)

Abstract

Abstract—: This study presents the results of ultraviolet radiation measurement in a truncated compound parabolic concentrator. The measurements were performed by using of a portable ultraviolet sensor both inside and outside the concentrator without the presence of receiver, under direct and diffuse solar radiation, to calculate the real value of the concentration factor of ultraviolet radiation. The truncated compound parabolic concentrator was designed in Solid Works and built via 3D printing, with a theoretical concentration factor of 4.6. This study showed the differences in the form of the ultraviolet radiation when measurements were made under direct radiation and diffuse solar radiation. These differences are important when measurements were made along the concentrator profile, at different heights within the concentrator and, also, along it. Finally, a concentration factor of 3.3 and 1.4 were calculated on a sunny and a cloudy days, respectively. These values correspond to a concentration efficiency of 71.7 and 31.3%, respectively, against the theoretical value of 4.6 proposed in the design.

Original languageEnglish
Pages (from-to)99-106
Number of pages8
JournalApplied Solar Energy (English translation of Geliotekhnika)
Volume56
Issue number2
DOIs
StatePublished - 1 Mar 2020

Keywords

  • photocatalytic reactor
  • solar concentrators
  • solar energy
  • truncated compound parabolic concentrator
  • ultraviolet radiation

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