惰性气体磁流体发电机的等离子体性能分析  

Analysis on Plasma Performances of Inert Gas Magnetohydrodynamic Generator

作　　者：刘保林[1] 彭燕[1] 李然[1] 赵凌志[1] 李建[1] 夏琦[1] 王锋[1] 沙次文[1] LIU Bao-lin;PENG Yan;LI Ran;ZHAO Ling-zhi;LI Jian;XIA Qi;WANG Feng;SHA Ci-wen(Institute of Electrical Engineering Chinese Academy of Sciences ,Beijing 100190, China)

机构地区：[1]中国科学院电工研究所,北京100190

出　　处：《气体物理》2018年第1期50-53,共4页Physics of Gases

摘　　要：惰性气体磁流体发电机将热能直接转换为电能,本身无转动部件,具有转换效率高、功率密度大等特点,在大功率电源方面具有重要发展前景。等离子体性能是影响惰性气体磁流体发电机输出的关键因素之一,文章介绍了3种典型的电导率计算模型(Spitzer模型、Z&L模型、M&G模型);描述了惰性气体添加种子的等离子体组分,并建立了适合于惰性气体的电导率计算模型;研究了温度、压力等参数对等离子体性能的影响.Inert gas magnetohydrodynamic generator converts heat energy to electricity directly,and there is no mechanical interface for speed change that is usually used in conventional devices. It has the characteristics of high conversion efficiency and high power density,etc. Plasma performance is one of the key factors that affect the output of inert gas magnetohydrodynamic generator. In this paper,three kinds of electrical conductivity calculation models（ Spitzer,ZL and MG）were introduced firstly. Then an electrical conductivity model suitable for inert gas was established based on the ionization process of seed with inert gas. Finally the effects of temperature and pressure on the properties of the plasma were studied.

关 键 词：磁流体 等离子体 发电机 电导率 

分 类 号：TM916.1[电气工程—电力电子与电力传动]