磁致冷却效应的试验装置
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摘要
磁致冷却效应即磁热效应,导磁材料在磁化过程中,内部趋向于磁有序,若此时去除磁场就会使得导磁材料内部重新回到磁无序状态,这个过程需要从外界吸收大量的热量,从而达到冷却和制冷的效果。本研究搭建了一套磁致冷却测试系统,包括永磁体试验平台和Labview测温程序两部分,利用这套系统可以实现磁场—热量转化过程的直观观察和分析,可以用于相应的电磁传热学机理研究及相应的教学示范。
Magnetic cooling effect is magnetocaloric effect.Magnetic conductive materials tend to magnetic order in the process of magnetization.If the magnetic field is removed at this time,the magnetic conduction material will return to the state of magnetic disorder.This process requires the absorption of a large amount of heat from the outside world to achieve cooling and cooling effects.In this study,a set of magnetic cooling test system,including permanent magnet test platform and Labview temperature measurement program,can be used to realize the visual observation and analysis of the magnetic field-heat conversion process.It can be used to study the mechanism of electromagnetic heat transfer and corresponding teaching demonstration.
Magnetic cooling effect is magnetocaloric effect.Magnetic conductive materials tend to magnetic order in the process of magnetization.If the magnetic field is removed at this time,the magnetic conduction material will return to the state of magnetic disorder.This process requires the absorption of a large amount of heat from the outside world to achieve cooling and cooling effects.In this study,a set of magnetic cooling test system,including permanent magnet test platform and Labview temperature measurement program,can be used to realize the visual observation and analysis of the magnetic field-heat conversion process.It can be used to study the mechanism of electromagnetic heat transfer and corresponding teaching demonstration.
引文
[1]姜峰,言兰,黄阳,徐西鹏.磁场辅助加工的研究现状及其发展趋势[J].机械工程学报,2016,(52):1-9.
[2]Lorenz E N.Static stability and atmospheric energy[J].Massachusetts Institute of Technology,Department of Meteorology,1957.
[3]Arkhangelskaya G A,Dikan A I,Dobrokhotova V B.In questions of electrophysics of friction and cutting[J].Tr.Grok.Politekh.Inst,1974,30(4):40.
[2]Lorenz E N.Static stability and atmospheric energy[J].Massachusetts Institute of Technology,Department of Meteorology,1957.
[3]Arkhangelskaya G A,Dikan A I,Dobrokhotova V B.In questions of electrophysics of friction and cutting[J].Tr.Grok.Politekh.Inst,1974,30(4):40.