不同电极/绝缘壁宽度比值的法拉第型发电通道性能研究  

Study on the Performance of Faraday Power Generation Channel with Different Electrode/Insulation Wall Width Ratio

作　　者：李林永 LI Linyong(Guilin University of Aerospace Technology,Guilin 541004,China)

机构地区：[1]桂林航天工业学院,广西桂林541004

出　　处：《通信电源技术》2021年第2期25-29,共5页Telecom Power Technology

基　　金：2021年飞行器动力工程特色专业建设项目。

摘　　要：空间核能磁流体发电技术是一种以核能为热源的新型发电技术,热电转换效率高,能很好地解决深空探测所带来的能源问题,是完成未来深空探测任务的理想电源之一。法拉第型发电通道是空间核能磁流体发电的一种重要结构,采用氦/氙混合气体为工质,研究导电极/绝缘壁宽度比值对氦/氙混合等离子体磁流体发器性能的影响。研究结果显示,电极/绝缘壁宽度比值L_(M)≥1.0时,通道等离子体结构较为稳定,L_(M)=1.0时焓提取率最大。Space nuclear MHD power generation technology is a new type of power generation technology with nuclear energy as the heat source.It has high thermoelectric conversion efficiency and can well solve the energy problem caused by deep space exploration.It is one of the ideal power sources to complete the future deep space exploration tasks.Faraday power generation channel is an important structure of space nuclear MHD power generation.In this paper,the influence of the width ratio of conductive wall to insulating wall on the performance of helium/xenon hybrid plasma MHD generator is studied by using helium/xenon gas mixture as working fluid.The results show that the channel plasma structure is stable when the width ratio of electrode to insulating wall is L_(M)≥1.0,and the enthalpy extraction rate is the highest when L_(M)=1.0.

关 键 词：深空探测 磁流体发电 法拉第通道 电极/绝缘壁宽度比 

分 类 号：V442[航空宇航科学与技术—飞行器设计] TM916[电气工程—电力电子与电力传动]