Prediction of critical ignition temperature of HNS with two-dimensional thermal explosion theory and its experimental verification
The algorithm of the critical ignition temperature was analysed with two-dimensional thermal explosion theory.The relationship between slenderness ratio and critical ignition parameters was calculated.The critical ignition temperature of HNS pellets with different characteristic sizes and slenderness ratios were calculated by using the chemical thermodynamics and kinetics parameters of HNS.By carrying out the cook-off tests of three sizes HNS pellets in different ambient temperatures, the ignition temperatures were measured.Test results and calculation results are approximately consistent.The results show that critical ignition temperature is affected by the explosive species, sizes and its chemical thermodynamics and kinetics parameters.The more the pellet radius or slenderness ratio is, the lower the critical ignition temperature is.
thermal explosion critical ignition temperature cook-off test HNS (2,2,4,4,6,6-hexanitro-stilbene)
DU Zhenhua CHU Enyi ZHANG Rui FU Dongxiao LI Fang MA Hongliang
Science and Technology on Applied Physical Chemistry Laboratory,Shaanxi Applied Physics-Chemistry Research Institute.ZhuQue Avenue No.213,Xian 710061,China
国际会议
成都
英文
504-508
2013-09-24（万方平台首次上网日期，不代表论文的发表时间）