储氢金属材料应用于高能推进剂的能量特性分析  

Analysis of energy characteristics of hydrogen storage metal materials used in high energy solid propellant

作　　者：吴浩明 陈林泉 董新刚 王立武 WU Haoming;CHEN Linquan;DONG Xingang;WANG Liwu(The 41st Institute of the Fourth Academy of CASC,Xi'an 710025,China)

机构地区：[1]中国航天科技集团有限公司四院四十一所,西安710025

出　　处：《固体火箭技术》2020年第6期707-713,共7页Journal of Solid Rocket Technology

摘　　要：储氢金属材料具有优异的释氢性能,应用于固体推进剂可大幅提高推进剂的能量水平。通过CEA热力计算程序,模拟计算了AlH 3、MgH 2、LiH、ZrH 2、LiBH 4、Mg(BH 4)2、LiAlH 4、Mg(AlH 4)2八种储氢金属材料替代金属铝,添加到NEPE推进剂和GAP推进剂后能量性能参数的变化规律。结果表明:对于NEPE推进剂,AlH 3、LiAlH 4、LiH可分别提高理论比冲7.6%、5.7%、5.0%;对于GAP推进剂,AlH 3、Mg(BH 4)2、LiAlH 4可分别提高理论比冲4.6%、3.3%、3.2%。ZrH 2的加入使得NEPE推进剂和GAP推进剂的理论比冲均有所减小,但密度比冲均得到较大提高。从能量性能方面综合考虑,AlH 3和Mg(AlH 4)2更适用于NEPE高能推进剂,AlH 3和LiAlH 4更适用于GAP高能推进剂。Hydrogen storage metal materials have excellent hydrogen release performance,and their application to solid propellants can greatly improve the energy level of solid propellant.In this paper,the energy performance parameters of NEPE propellant and GAP propellant were calculated by using eight kinds of hydrogen storage metal materials AlH3,MgH2,LiH,ZrH2,LiBH4,Mg(BH4)2,LiAlH4 and Mg(AlH4)2 instead of Al by CEA thermal calculation program.The results show that:For NEPE propellant,AlH3,LiAlH4 and LiH can increase the theoretical specific impulse by 7.6%,5.7% and 5.0% respectively;For GAP propellant,AlH3,Mg(BH4)2 and LiAlH4 can increase the theoretical specific impulse by 4.6%,3.3% and 3.2%.The specific impulse of NEPE propellant and GAP propellant is reduced by adding ZrH2,but the density specific impulse is increased greatly.In terms of energy performance,AlH3 and Mg(AlH4)2 are more suitable for NEPE high-energy propellant,and AlH3 and LiAlH4 are more suitable for GAP high-energy propellant.

关 键 词：储氢金属材料 NEPE推进剂 GAP推进剂 能量特性 

分 类 号：V512[航空宇航科学与技术—航空宇航推进理论与工程]