Flame spread over the surface of thermal insulation materials in different environments |
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Authors: | XinJie Huang JinHua Sun Jie Ji Ying Zhang QingSong Wang Yi Zhang |
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Institution: | (1) Key State Laboratory for Mechanical Behavior of Materials, School of Material Science and Engineering, Xi’an Jiaotong University, Xi’an, 710049, China;(2) School of Science, Xi’an Jiaotong University, Xi’an, 710049, China |
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Abstract: | Experiments were conducted in a plateau area in Lhasa and a plain area in Hefei China to investigate the flame spread characteristics
on thermal insulation materials under different environmental conditions (pressure and oxygen concentration). Molded polystyrene
foam (EPS) and extruded polystyrene foam (XPS) samples were placed horizontally on a small-scale flame spread experimental
bench. Changes in the average length of the pool fire, flame spread speed, average flame height, and length of preheating
zone were used to determine the effect of the plateau and plain environments on flame spread characteristics. These parameters
were all larger in Hefei than in Lhasa, which indicates the fire hazard in Hefei will be higher than that in Lhasa if insulation
materials of the same size are used. |
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Keywords: | thermal insulation material molded polystyrene foam extruded polystyrene foam hypobaric hypoxia flame spread speed |
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