LOCATION DEPENDENT PERFORMANCE STUDY ON REGENERATORS WITHIN A HALBACH MAGNETIC FIELD SOURCE

机译：哈尔巴赫磁场源中再生器的位置相关性能研究

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This research describes the characterization of a concentric Halbach magnetic refrigerator using Gadolinium. Experiments are performed with the active regenerator located at three different axial locations in the magnet. Results show that the performance of the regenerator is lower when located near the ends of the Halbach magnets as compared to the center. Numerical simulations are performed using COMSOL to analyze the effects of field distribution, magnitude and demagnetization, in addition to the dead volumes on either side of the regenerator. The numerical results show a large difference between the temperature span of the active part of the regenerator and the end points of the regenerator housing where measurements are taken. These results suggest that proper characterization of the magnetic field and the dead volume is needed to explain the operation of the device.

机译：这项研究描述了使用Ga的同心Halbach磁性制冷机的特性。使用位于磁体中三个不同轴向位置的有源再生器进行实验。结果表明，与中心相比，当位于Halbach磁体的末端附近时，再生器的性能较低。使用COMSOL进行数值模拟，以分析磁场分布，幅度和退磁的影响，以及蓄热室两侧的死体积。数值结果表明，蓄热室有效部分的温度跨度与进行测量的蓄热室外壳的端点之间存在很大差异。这些结果表明，需要对磁场和死体积进行适当的表征，以解释设备的运行情况。

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来源
《7th international conference on magnetic refrigeration at room temperature》|2016年|1-4|共4页
会议地点 Turin(IT)
作者
T.V. Christiaanse; P. Govindappa; I. Niknia; R. Teyber; P.V. Trevizoli; A. Rowe;
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作者单位

University of Victoria, (3800 Finnerty Rd., V8P 5C2, Victoria, BC, Canada) E-mail: theochri@uvic.ca;

University of Victoria, (3800 Finnerty Rd., V8P 5C2, Victoria, BC, Canada);

University of Victoria, (3800 Finnerty Rd., V8P 5C2, Victoria, BC, Canada);

University of Victoria, (3800 Finnerty Rd., V8P 5C2, Victoria, BC, Canada);

University of Victoria, (3800 Finnerty Rd., V8P 5C2, Victoria, BC, Canada);

University of Victoria, (3800 Finnerty Rd., V8P 5C2, Victoria, BC, Canada);

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原文格式 PDF
正文语种 eng
中图分类
关键词
dead volume; void space; magnetic field dependence; 1D simulation; experiments; AMR; magnetic refrigeration;

机译：死体积;空的空间;;磁场依赖性一维模拟;实验； AMR ;;磁制冷;

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LOCATION DEPENDENT PERFORMANCE STUDY ON REGENERATORS WITHIN A HALBACH MAGNETIC FIELD SOURCE

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