Journal
JOURNAL OF FIRE SCIENCES
Volume 36, Issue 1, Pages 63-77Publisher
SAGE PUBLICATIONS LTD
DOI: 10.1177/0734904117740855
Keywords
Flexible photovoltaic panel; building-integrated photovoltaic; heat flux; cone calorimeter; fire behaviors
Funding
- National Natural Science Foundation of China [51476158]
- Fundamental Research Funds for the Central Universities [WK2320000033]
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Photovoltaic arrays are mounted on the surfaces of modern buildings to harness renewable energy. When a building catches fire, burning photovoltaic panels could worsen an already very hazardous environment. This work deals with the effect of building flame radiation on the fire behaviors of flexible photovoltaic panel installed in building-integrated photovoltaic systems. Cone calorimeter tests were conducted in air with a piloted ignition. The influence of heat flux on photovoltaic fire properties was studied. Several characteristic parameters are systematically determined or calculated, including ignition time, critical heat flux, mass loss rate, gasification heat, heat release rate, and effective heat of combustion. Thermogravimetry and differential scanning calorimetry test was conducted to identify the decomposition mechanism. The comparison of fire properties of photovoltaic and polyethylene terephthalate + tedlar-polyester-tedlar and thermogravimetry and differential scanning calorimetry analysis reveal that polyethylene terephthalate is the main component responsible for decomposition and burning of flexible photovoltaic panel.
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