| He-H2 mixture and Er3NiHx packing for the refrigeration enhancement of pulse tube refrigerator |
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| 引用本文： | CHENGuobang TANGKe HUANGYonghua GANZhihua BAORui. He-H2 mixture and Er3NiHx packing for the refrigeration enhancement of pulse tube refrigerator[J]. 科学通报(英文版), 2004, 49(5): 527-530. DOI: 10.1007/BF02900976 |
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| 作者姓名： | CHENGuobang TANGKe HUANGYonghua GANZhihua BAORui |
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| 摘 要： | The computation with the theory of modified Brayton Cycle indicates that higher cooling power and coefficient of performance for a pulse tube refrigerator can be achieved with He-H2 mixture as working gas than those with pure He in the temperature region of 30 K. In addition, it is found that Er3Ni, a regenerative material, is able to absorb H2 and produces Er3NiHx. The computation presents that the regenerative performance of Er3NiHx is better than that of Er3Ni due to its higher volume specific heat. Experimental results show that the pulse tube refrigeration performance in 30 K temperature region is enhanced greatly with He-H2 mixture and Er3NiHx packing.
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| 关 键 词： | 氦氢混合工质 Er3NiHx 脉管制冷机 制冷系数 |
| 收稿时间： | 2003-07-22 |
| 修稿时间： | 2003-11-17 |
He-H2 mixture and Er3NiHx packing for the refrigeration enhancement of pulse tube refrigerator |
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| Guobang Chen,Ke Tang,Yonghua Huang,Zhihua Gan,Rui Bao. He-H2 mixture and Er3NiHx packing for the refrigeration enhancement of pulse tube refrigerator[J]. Chinese science bulletin, 2004, 49(5): 527-530. DOI: 10.1007/BF02900976 |
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| Authors: | Guobang Chen Ke Tang Yonghua Huang Zhihua Gan Rui Bao |
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| Affiliation: | (1) Cryogenics Laboratory, Zhejiang University, 310027 Hangzhou, China |
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| Abstract: | The computation with the theory of modified Brayton Cycle indicates that higher cooling power and coefficient of performance for a pulse tube refrigerator can be achieved with He-H2 mixture as working gas than those with pure He in the temperature region of 30 K. In addition, it is found that Er3Ni, a regenerative material, is able to absorb H2 and produces Er3NiHx. The computation presents that the regenerative performance of Er3NiHx is better than that of Er3Ni due to its higher volume specific heat. Experimental results show that the pulse tube refrigeration performance in 30 K temperature region is enhanced greatly with He-H2 mixture and Er3NiHx packing. |
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| Keywords: | pulse tube refrigerator mixture metallic hydride |
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