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Xu Q.,Nanjing University of Science and Technology | Griffin G.J.,CSIRO | Que X.,Shanghai Fire Research Institute of Public Security Ministry of China | Cao L.,Shanghai Fire Research Institute of Public Security Ministry of China | And 5 more authors.
Thermal Science | Year: 2011

Water mist suppression tests for glass-reinforced polyester panels were conducted in ISO 9705 room. Panels covered part of the room and a wood crib fire was used as fire source to ignite glass-reinforced polyester fire. A four-nozzle water mist suppression equipment was used inside test room on the time of flashover. Heat release rate of the combustion inside the room, room temperature, surface temperature of glass-reinforced polyester panels, total heat flux to wall, ceiling and floor in specific positions were measured. Gas concentration of O2, CO, and CO2 was also measured in the corner of the room at two different levels. A thermal image video was used to record the suppression procedure inside room. Test results show that the water mist system is efficient in suppressing the flashover of glass-reinforced polyester fire and cooling the room within short time. Source


Xu Q.,Nanjing University of Science and Technology | Hristov J.,Nanjing University of Science and Technology | Hristov J.,University of Chemical Technology and Metallurgy of Sofia | Cao L.,Shanghai Fire Research Institute of Public Security Ministry of China | Que X.,Shanghai Fire Research Institute of Public Security Ministry of China
Thermal Science | Year: 2011

Fire behaviour of a vinyl based lining material with and without anti-corrosion painting has been evaluated through 35 and 50 kW/m 2 cone calorimeter tests. The minimum heat flux requited for surface ignition was estimated. The data were compared by those provided by a revised Kokkala-Thomas's classification index prediction model, the Östman-Tsantaridis empirical linear regression mod- el, and the Hansen-Hovde multiple discriminant function analysis. All results col- lected allowed to predict the material flashover time and to classify the lining material. The results illustrate some differences in the classification of the ma- terial due to different approaches of the models used. Source


Xu Q.,Nanjing University of Science and Technology | Que X.,Shanghai Fire Research Institute of Public Security Ministry of China | Cao L.,Shanghai Fire Research Institute of Public Security Ministry of China | Jiang Y.,Hefei University of Technology | Jin C.,Nanjing University of Science and Technology
Thermal Science | Year: 2010

A serials test of crib fire conducted in a bench scale compartment. Total heat flux to the wall is measured by Schmidt-bolter gages in upper zone and lower zone of the compartment. The heat flux intensity and distribution of these quasi-steady crib fires is evaluated through these tests. The peak value and integral of the measured total heat flux is scaled with exposed surface area of wood cribs. Linear relations of these scaled value with the mass and exposure surface area of wood cribs are obtained. The ratio of scale value in upper and lower zone is also presented which could be used as model in estimating thermal load to side wall for bench scale tests. Source

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