Experimental study on the ignition and combustion characteristics of a magnesium particle in water vapor

作     者：HUANG Xu XIA ZhiXun HUANG LiYa HU JianXin 

作者机构：Science and Technology on Scram jet LaboratoryNational University of Defense TechnologyChangsha 410073China College of Aerospace and Materials EngineeringNational University of Defense TechnologyChangsha 410073China 

出 版 物：《Science China(Technological Sciences)》 (中国科学（技术科学英文版）)

年 卷 期：2012年第55卷第9期

页      面：2601-2608页

核心收录：

学科分类：081702[工学-化学工艺] 080602[工学-钢铁冶金] 08[工学] 0817[工学-化学工程与技术] 0806[工学-冶金工程] 

基　　金：supported by the National Natural Science Foundation of China (Grant No. 51006118) 

主　　题：magnesium particle water vapor ignition combustion experiment water ramjet 

摘      要：Magnesium is of interest for underwater propulsion due to the superior ignition behavior of magnesium particles and the highly exothermic Mg-water *** this work,the ignition and combustion characteristics of an individual millimeter-sized magnesium particle in water vapor were *** order to build an atmosphere of water vapor,an experiment system was established and validated by the experiments of magnesium particle in *** ignition and combustion of a single magnesium particle were accomplished in a combustor filled with water *** surface changes of the particle during the ignition and a steady-state vapor phase combustion were *** on the data obtained,ignition mechanism was analyzed and ignition temperature was *** steady-state combustion of the sample was controlled by diffusion in gas phase,and a one-dimensional,spherically symmetric quasi-steady model was adopted to describe the *** dependence of burning time on the diameter was investigated,and the conclusion that burning time is proportional to the square of the metal sample diameter was drawn.