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设计出60 K温区2 W冷量级别惯性管型单级高频同轴脉冲管制冷机并进行了系统试验,分析研究并获取了最优工作频率和最佳的蓄冷器与脉冲管长度匹配及布置。制冷机典型试验性能为在91 W压缩机输入电功和300 K散热温度的条件下,在60 K获取2 W净制冷量,在60 K的比卡诺效率达到8.8%。
A single-stage high-frequency coaxial coaxial pulse tube refrigerator with 2 W cooling capacity of 60 K in the cold zone was designed and systematically tested. The best operating frequency and the best matching between the regenerator and the pulse tube length were obtained And layout. Typical experimental performance of the chiller is 2 W net cooling capacity at 60 K at 91 W compressor input electrical power and 300 K cooling temperature and 8.8% efficiency at 60 K.