狭缝调相式分置式斯特林制冷机性能试验验证(英文)  

Performance experimental verification on pneumatically-driven split-Stirling-cycle cryocooler with clearance-phase-adjustor

作　　者：张存泉[1] 吴亦农[2] 

机构地区：[1]武汉理工大学能源与动力工程学院,湖北武汉430063 [2]中国科学院上海技术物理研究所,上海200083

出　　处：《红外与激光工程》2008年第3期428-431,共4页Infrared and Laser Engineering

摘　　要：给出了用来验证上两部分的大量系统试验结果,系统地研究并验证了整机内参数波动特征、压缩活塞与排出器之间的影响关系、冷头温度与调相器间隙对整机性能的影响,同时,以整机运行的冷头最低温度对其运行性能进行了检验,实时测量了各个气动腔内气体压力波动、排出器与活塞运动,这样有助于更加清晰地了解整机内部的工作机制。实验结果表明,试验数据与模拟结果吻合良好。A set of systematical experiments were carried out in order to validate the simulation model described in the preceding two parts of the study. The parameters fluctuating characteristics in this cooler, influencing relations between the compression piston and the free displacer, and the effects of cold-tip temperatures and phase-adjusting clearance gaps on cooler performances, were intensively investigated. In the meantime, the cooler performances were examined. The minimum coldtip temperature was used as a criteria of refrigeration performance. Real-time measurements of gas pressures in different chambers, displacements of the compression piston and the free displacer, were performed in order to reveal the internal physical processes. The gas pressure has amplitude reduction and phase delay from the compressor to cold chamber.The displacer vidtation system has more complicated influence on the compressor vibration system. The method of the compressor vibration system on the displacer vibration system make gas pressure variation.The experimental results are found to be in good agreement with the simulated ones.

关 键 词：气动分置式斯特林制冷机 狭缝调相器 动态模拟 试验验证 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]