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爆轰驱动惰性气体磁流体发电试验研究

卢子寅 张晓源 李进平 马虎

卢子寅, 张晓源, 李进平, 马虎. 爆轰驱动惰性气体磁流体发电试验研究. 力学学报, 2023, 55(2): 1-9 doi: 10.6052/0459-1879-22-576
引用本文: 卢子寅, 张晓源, 李进平, 马虎. 爆轰驱动惰性气体磁流体发电试验研究. 力学学报, 2023, 55(2): 1-9 doi: 10.6052/0459-1879-22-576
Lu Ziyin, Zhang Xiaoyuan, Li Jinping, Ma Hu. Experimental study on inert gas magnetohydrodynamic power generation by detonation-driven. Chinese Journal of Theoretical and Applied Mechanics, 2023, 55(2): 1-9 doi: 10.6052/0459-1879-22-576
Citation: Lu Ziyin, Zhang Xiaoyuan, Li Jinping, Ma Hu. Experimental study on inert gas magnetohydrodynamic power generation by detonation-driven. Chinese Journal of Theoretical and Applied Mechanics, 2023, 55(2): 1-9 doi: 10.6052/0459-1879-22-576

爆轰驱动惰性气体磁流体发电试验研究

doi: 10.6052/0459-1879-22-576
详细信息
    通讯作者:

    通讯作者: 张晓源, 助理研究员, 主要研究方向为流体力学. E-mail: zhangxiaoyuan@imech.ac.cn

  • 中图分类号: O361

EXPERIMENTAL STUDY ON INERT GAS MAGNETOHYDRODYNAMIC POWER GENERATION BY DETONATION-DRIVEN

  • 摘要: 磁流体发电装置作为一种特殊的高功率脉冲电源, 具有效率高、容量大、启动快的优点, 制约其发展的关键在于如何获得高电导率的发电工质. 爆轰驱动具有远超常规方式的驱动能力, 在提供高温、高电导率气体方面独具优势. 将爆轰驱动激波管技术应用于磁流体发电, 有利于突破磁流体发电技术瓶颈, 故据此开展了基于爆轰驱动激波管技术的惰性气体磁流体发电试验研究. 爆轰驱动根据激波管点火位置不同分为反向和正向两种运行模式, 反向爆轰驱动可提供时间较长、状态稳定的试验气流, 而正向爆轰优势在于产生高焓试验气流. 试验系统由爆轰驱动激波管、拉瓦尔喷管、发电通道、电磁铁和真空罐等组成, 试验中分别以反向爆轰和正向爆轰驱动激波管产生发电工质, 利用激波将惰性气体压缩至高温从而发生电离, 形成的等离子体经喷管加速后, 最终在法拉第直线型发电机内切割磁感线输出电能. 磁场强度0.9 T的条件下, 反向爆轰在负载3.5 Ω时获得了较稳定的1.9 kW输出功率, 持续时间1.5 ms; 外接35 mΩ负载时, 正向爆轰在0.3 ms内短时输出功率高达212 kW, 功率密度为0.2 GW/m3. 试验成功验证了基于爆轰驱动激波管技术的惰性气体磁流体发电方案的可行性, 为高功率脉冲电源的应用与发展提供了新的方法.

     

  • 图  1  磁流体发电原理图

    Figure  1.  Schematic diagram of MHD power generation

    图  2  爆轰驱动磁流体发电结构示意图

    Figure  2.  Schematic diagram of detonation-driven MHD power generation

    图  3  爆轰驱动磁流体发电波系图

    Figure  3.  Wave diagram of detonation-driven MHD power generation

    图  4  爆轰驱动磁流体发电试验设备

    Figure  4.  MHD power generation equipment

    图  5  激波管压力测量结果

    Figure  5.  Pressure testing results of shock tube

    图  6  通道内马赫数分布

    Figure  6.  Distribution of mach number in the channel

    图  7  负载3.5 Ω时反向爆轰驱动磁流体发电试验结果

    Figure  7.  Results of backward detonation-driven MHD power generation under 3.5 Ω load resistance

    图  8  负载1 Ω时正向爆轰驱动磁流体发电试验结果

    Figure  8.  Results of forward detonation-driven MHD power generation under 1 Ω load resistance

    图  9  不同负载下正向爆轰驱动磁流体发电试验结果

    Figure  9.  Results of forward detonation-driven MHD power generation under different load resistance

    表  1  反向爆轰驱动激波管性能参数

    Table  1.   Performance parameters of backward detonation-driven shock tube

    TypeParameter
    mole ratio of driver gasH2:O2 = 2.5:1
    initial pressure of driver gas/MPa0.4
    driven gasAr
    initial pressure of driven gas/Pa2500
    incident shock Mach number9.8
    T5/kK13
    P5/MPa1.5
    下载: 导出CSV

    表  2  正向爆轰驱动激波管性能参数

    Table  2.   Performance parameters of forward detonation-driven shock tube

    TypeParameter
    mole ratio of driver gasH2:O2 = 3.5:1
    initial pressure of driver gas/MPa0.4
    driven gasAr
    initial pressure of driven gas/Pa1250
    incident shock Mach number14
    T5/kK16
    P5/MPa2.5
    下载: 导出CSV

    表  3  试验工况

    Table  3.   Working conditions

    TypeParameter
    driven gasAr
    T5(backward detonation-driven)/K1.3 × 104
    P5(backward detonation-driven)/MPa1.5
    T5(forward detonation-driven)/K1.6 × 104
    P5(forward detonation-driven)/MPa2.5
    area ratio (exit/throat)2
    load resistance/Ω0.035 ~ 3.5
    magnetic flux density/T0.9
    下载: 导出CSV
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出版历程
  • 收稿日期:  2022-12-04
  • 录用日期:  2023-01-10
  • 网络出版日期:  2023-01-11

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