燃烧型脉冲磁流体发电机实验研究  

Experimental Study on Propellant Driven Magnetohydrodynamic Generator

作　　者：谢中元[1] 周霖[1] 

机构地区：[1]北京理工大学爆炸科学与技术国家重点实验室,北京100081

出　　处：《北京理工大学学报》2011年第2期182-186,共5页Transactions of Beijing Institute of Technology

基　　金：国家部委基础产品创新资助项目(A2220061374)

摘　　要：通过对磁流体发电机用推进剂配方、发电通道以及大空间强磁场形成技术的研究,研制了燃烧型脉冲磁流体发电机样机,并测试了发电机的输出电压.实验结果表明:含硝酸铯盐复合推进剂配方可用于脉冲磁流体发电机,标准火箭发动机喷管出口燃烧产物电子密度达到1.9×1012 cm-3,比常规推进剂提高1 000倍;永磁体采用聚磁技术可实现均匀强磁场,在104mm×360mm×500mm的矩形空间内得到磁体系统的平均磁感应强度为1.24T,磁场均匀度超过95%;发电机稳定输出电压为90V,实现了推进剂化学能的转换.研究结果为高功率脉冲电源的研究提供参考.Experiments have been set up respectively to study on the propellant formula,magnetohydrodynamic（MHD） channel and magnetic facility,of which all were applied in MHD generator.Then the MHD generator was manufactured in laboratory and the output voltage was test.Experimental results show that the solid composite propellant with cesium nitrate（CsNO3） could be used for propellant driven MHD generator,by which the average gas electronic density generated is 1.9×1012 cm-3 that is approximate 1 000 times of normal combustion products in the layout of normal rocket monitor.The strong magnetic field can be achieved by the magnet-condensing technology in the volume of 104 mm×360 mm×500 mm,the average magnetic induction reaches to 1.24 T and the uniformity of magnet field exceeds 95%.The average voltage output is 90 V.All the above indicates that the chemical energy of propellant has been partly translated into electrical energy successfully.This study could afford reference for the research of high power pulse source.

关 键 词：脉冲磁流体发电 推进剂 发电通道 磁感应强度 

分 类 号：TM916[电气工程—电力电子与电力传动]