| 旋转式室温磁制冷机用永磁磁路 |
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| 引用本文： | 唐永柏,陈云贵,向志刚,涂铭旌.旋转式室温磁制冷机用永磁磁路[J].稀有金属,2005,29(4):590-593. |
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| 作者姓名： | 唐永柏 陈云贵 向志刚 涂铭旌 |
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| 作者单位： | 四川大学材料科学与工程学院,四川,成都,610065 |
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| 基金项目： | 国家“863计划”资助项目(2002AA324010) |
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| 摘 要： | 随着室温磁制冷技术的发展,许多具有巨磁热效应的材料被开发出,但多是在高场强的超导磁体中获得的。为应用磁制冷技术到家用空调和冰箱,除了巨磁热效应的磁致冷材料外,设计出高场强的永磁磁路也尤其重要。针对旋转式室温磁制冷机,采用有限元方法设计并制作了具有较高场强的永磁磁路,在磁路工作气隙为20mm时,工作气隙中心的场强的计算值及实测值均高于1.5T,且计算值与实测值基本相符。
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| 关 键 词： | 磁热效应 室温磁制冷机 永磁磁路 磁场 |
| 文章编号： | 0258-7076(2005)04-0590-04 |
| 修稿时间： | 2005年5月10日 |
Permanent Magnetic Circuit for a Rotary Room-Temperature Magnetic Refrigerator |
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| Tang Yongbai,CHEN Yungui,Xiang Zhigang,Tu Mingjing.Permanent Magnetic Circuit for a Rotary Room-Temperature Magnetic Refrigerator[J].Chinese Journal of Rare Metals,2005,29(4):590-593. |
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| Authors: | Tang Yongbai CHEN Yungui Xiang Zhigang Tu Mingjing |
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| Affiliation: | Tang Yongbai,Chen Yungui*,Xiang Zhigang,Tu Mingjing |
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| Abstract: | Most magnetic refrigerant materials with giantmagnetocaloric effect(GMCE) were developed,but thesematerials show GMCE at high applied magnetic fieldsprovided by a superconducting magnet . For applyingmagnetic refrigeration to air conditioners and householdrefrigerators ,it is important toforma highfield strengthpermanent magnetic circuit besides applying magnetic re-frigerant materials with giant GMCE. Through the finiteelement calculations , a high field strength permanentmagnetic circuit for a rotary room-temperature magneticrefrigerator was designed and fabricated. When theheight of workingspace was 20 mm,thefieldstrengthsinthe center of working space were calculated and mea-sured.The values are all morethan1 .5 Tandthe valuesof calculation and measurement are consistent . |
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| Keywords: | magnetocaloric effect room-temperature magnetic refrigeration permanent magnetic circuit magnetic field |
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