CO_(2)聚能剂燃烧与冲压实验研究  

Experimental study of combustion and impact fracturing for CO_(2)-EA

作　　者：蔡余康 胡少斌 庞烁钢 邹柳宗 汤旋 颜正勇 CAI Yu-kang;HU Shao-bin;PANG Shuo-gang;ZOU Liu-zong;TANG Xuan;YAN Zheng-yong(School of Civil Engineering and Transportation,Hohai University,Nanjing 210098,China)

机构地区：[1]河海大学土木与交通学院,南京210098

出　　处：《工程爆破》2022年第3期77-81,116,共6页Engineering Blasting

基　　金：The Surface Project of the Natural Science Foundation of Jiangsu Province资助项目(No.BK20201313);The State Key Laboratory Open Fund Project资助项目(No.HKLBEF202004);Science and Technology Program of the Ministry of Housing and Urban Rural Development资助项目(NO.2021-K-087)。

摘　　要：为进一步地揭示CO_(2)相变膨胀的热力学机理,通过CO_(2)爆燃冲压实验,对起爆温度、CO_(2)与CO_(2)聚能剂(一种高能复合材料)质量比对CO_(2)爆燃冲压过程、CO_(2)聚能混相流体燃烧速率、燃烧热和峰值压强的影响规律进行了研究。最终得到了不同工况下实验组的压强时程。结果表明:爆燃筒内反应能否发生对CO_(2)密度和起爆温度有一定的要求;在实验研究范围内,CO_(2)密度、CO_(2)与CO_(2)聚能剂质量比、起始温度与爆燃实验的化学反应速率、压强增长速率呈正相关。In order to further reveal the thermodynamic mechanism of CO_(2) phase change expansion,through the CO_(2) deflagration stamping experiment,the effects of detonation temperature and mass ratio of CO_(2) to CO_(2)-EA(a kind of high-energy composite material)on the CO_(2) deflagration stamping process,combustion rate,combustion heat and peak pressure of CO_(2) energy-forming miscible fluid were studied.Finally,the pressure-time histories of the experimental group under different working conditions are obtained.The results show that whether the reaction in the deflagration cylinder can take place has certain requirements on the density of CO_(2) and the detonation temperature.Within the scope of the experimental study,the CO_(2) density,the mass ratio of CO_(2) to CO_(2)-EA,and the initial temperature were positively correlated with the chemical reaction rate and the pressure growth rate of the deflagration experiment.

关 键 词：热力学机理 CO_(2)相变 起爆温度 质量比 压强 时间 

分 类 号：TU94[建筑科学—建筑技术科学]