Journal
ENERGY AND BUILDINGS
Volume 124, Issue -, Pages 19-34Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.enbuild.2016.04.072
Keywords
Thermal performance; Glazing technologies; Semi-transparent PV
Funding
- COOL-NANO project under the ARISTEIA Action of the OPERATIONAL PROGRAMME EDUCATION AND LIFELONG LEARNING [733]
- European Social Fund (ESF)
- National Resources
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In order to reduce the building heat gains through windows, among different glazing cooling technologies being under intensive research and development are the addition of semi-transparent photovoltaics (STPV). However, the implementation of a particular technology requires its extensive environmental and thermal characterization in buildings. In this work, small samples of c-Si and a-Si PV glazings were initially characterized by ultraviolet-visible-near infrared (UV/VIS/NIR) spectrophotometry and solar simulator irradiation in a benchtop wind tunnel of controllable environmental conditions. The obtained data were used to perform extensive simulations based on a reference building using a package of specific software tools to take proper account of the STPV peculiarities. From validated model, both glazings were found by the simulation to reduce cooling loads compared to the reference glass and providing energy efficiency dependable on the PV covering ratio. However the reduction of indoors daylighting points out to the need of further characterization and optimization of their environmental performance. (C) 2016 Elsevier B.V. All rights reserved.
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