TY - JOUR
T1 - 辐射热流作用下皮棉燃烧特性
AU - Zhuo, Ping
AU - Ni, Zhaopeng
AU - Li, Xiangmei
AU - Li, Qiang
AU - Yan, Keqin
N1 - Publisher Copyright:
Copyright No content may be reproduced or abridged without authorization.
PY - 2018/9/15
Y1 - 2018/9/15
N2 - In order to improve the safety management level of ginned cotton warehouses and prevent fire accidents, using the combustion heat release rate test method, the combustion behavior and difference of packaged ginned cotton with different densities under different radiant heat fluxes were studied systematically by cone calorimeter,and the isothermal thermo weightlessness of ginned cotton at different temperatures was analyzed by means of thermo gravimetric analyzer. The results show that the combustion state of ginned cotton has a great relationship with density, heat flux and fire source. When the fire flux is greater than 15 kW/m2, the relatively dense ginned cotton generates an open flame after it is ignited by the fire source and is in smoldering when it is not ignited. When ignition occurs, with the heat flux improved gradually from 10 kW/m2 to 35 kW/m2, the combustion state of relatively loose ginned cotton would change accordingly. When the radiation intensity reaches 35 kW/m2, the ignition time of the ginned cotton samples with different densities is about 7 s,which is highly inflammable. The ginned cotton can be completely decomposed when being exposed to heat flux above 15 kW/m2 over an extended period of time.
AB - In order to improve the safety management level of ginned cotton warehouses and prevent fire accidents, using the combustion heat release rate test method, the combustion behavior and difference of packaged ginned cotton with different densities under different radiant heat fluxes were studied systematically by cone calorimeter,and the isothermal thermo weightlessness of ginned cotton at different temperatures was analyzed by means of thermo gravimetric analyzer. The results show that the combustion state of ginned cotton has a great relationship with density, heat flux and fire source. When the fire flux is greater than 15 kW/m2, the relatively dense ginned cotton generates an open flame after it is ignited by the fire source and is in smoldering when it is not ignited. When ignition occurs, with the heat flux improved gradually from 10 kW/m2 to 35 kW/m2, the combustion state of relatively loose ginned cotton would change accordingly. When the radiation intensity reaches 35 kW/m2, the ignition time of the ginned cotton samples with different densities is about 7 s,which is highly inflammable. The ginned cotton can be completely decomposed when being exposed to heat flux above 15 kW/m2 over an extended period of time.
KW - Burning characteristic
KW - Cone calorimeter
KW - Ginned cotton
KW - Radiation intensity
UR - http://www.scopus.com/inward/record.url?scp=85077486203&partnerID=8YFLogxK
U2 - 10.13475/j.fzxb.20171104005
DO - 10.13475/j.fzxb.20171104005
M3 - 文章
AN - SCOPUS:85077486203
SN - 0253-9721
VL - 39
SP - 29
EP - 33
JO - Fangzhi Xuebao/Journal of Textile Research
JF - Fangzhi Xuebao/Journal of Textile Research
IS - 9
ER -