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Effect of thermal insulation of the back side of PV modules on the module temperature
Author(s) -
Koehl Michael,
Hamperl Simon,
Heck Markus
Publication year - 2016
Publication title -
progress in photovoltaics: research and applications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.286
H-Index - 131
eISSN - 1099-159X
pISSN - 1062-7995
DOI - 10.1002/pip.2773
Subject(s) - roof , thermal , thermal insulation , irradiation , materials science , plane (geometry) , composite material , environmental science , structural engineering , electrical engineering , mechanical engineering , mechanics , meteorology , physics , engineering , geometry , mathematics , nuclear physics , layer (electronics)
The module temperatures of free‐standing modules were compared with identical modules with thermally insulated back side simulating roof integration for 45° south orientation in Freiburg, Germany, at 1000 W/m 2 solar irradiation. The thickness of the thermal insulation was varied in order to find a minimum thickness sufficient for suppressing the heat losses and for the simulation of roof integration. The module‐dependent coefficients for the Faiman model for the module temperature depend on the back‐side heat losses. A correction for roof integration is proposed. This model allows the calculation of the maximum temperatures reached for given climatic situations (irradiation in plane of array, ambient temperature, and wind speed). Copyright © 2016 John Wiley & Sons, Ltd.

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