| 关键部件对自由活塞斯特林制冷机制冷性能的影响 |
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| 引用本文： | 陈曦,武卫东,张华,吴亦农,陈楠. 关键部件对自由活塞斯特林制冷机制冷性能的影响[J]. 上海理工大学学报(社会科学版), 2008, 30(5) |
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| 作者姓名： | 陈曦 武卫东 张华 吴亦农 陈楠 |
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| 作者单位： | [1]上海理工大学动力工程学院,上海200093 [2]中国科学院上海技术物理研究所,上海200083 |
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| 基金项目： | 上海高校选拔培养优秀青年教师科研专项基金资助项目(563102); 上海市教育委员会重点学科建设资助项目(J50502) |
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| 摘 要： | 实验测试了两种不同丝网蓄冷器的流阻特性及其对整机制冷性能的影响，表明在低温下需要设计小空隙率，而在高温区需要设计大空隙率．通过改变冷头材料，实验测试了冷头表面温度的变化情况．比较了不同制冷量下两种冷头的表面温差，表明制冷量越大，冷头材料导热系数对两者表面温差的影响越大．通过粘贴排出器垫块，改变冷端死容积．分析了死容积对整机性能的影响，在200K温度以下，死容积越小，制冷性能越好，但在240K以上的高温区，制冷性能受死容积的影响较小．
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| 关 键 词： | 自由活塞斯特林制冷机 蓄冷器 冷头 死容积 |
Effects of key parts on the refrigeration performance of free-piston Stirling cooler |
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| CHEN Xi,WU Wei-dong,ZHANG Hu,WU Yi-nong,CHEN Nan. Effects of key parts on the refrigeration performance of free-piston Stirling cooler[J]. Journal of University of Shanghai For Science and Technilogy(Social Science), 2008, 30(5) |
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| Authors: | CHEN Xi WU Wei-dong ZHANG Hu WU Yi-nong CHEN Nan |
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| Abstract: | The flow resistance two regenerators with different mesh screens and their effects on the performance of free piston stirling cooler were tested respectively.It is indicated that small void ratio is needed for low temperature and large one is needed for high temperature.The heat exchanger on the cold end surface was tested by changing the material of the cold end.The difference of temperature between two cold ends was examined with different cooling capacities,and it is indicated that the larger cooling cap... |
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| Keywords: | free-piston Stirling cooler regenerator cold end dead volume |
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