2022•Journal of Renewable and Sustainable EnergyRequires access

Estimating global irradiance on tilted surfaces using a cubic multi-directional pyranometer array

M.C. Brito, Rodrigo Amaro e Silva, Ahmed M. Elsayed, Mário Pó

Abstract

The multi-directional pyranometer array is a method for estimation of the global irradiance on a tilted plane and the direct irradiance based on the simultaneous measurement of global irradiance on a set of stationary surfaces with different inclinations and orientations. Experimental testing shows that estimates of global irradiance on a tilted plane are 50% more accurate than transposing measured global and diffuse irradiance. A simplified layout of five sensors yields comparable results.

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Key concepts: Pyranometer, Irradiance, Optics, Environmental science, Remote sensing, Plane (geometry), Geology, Physics