航空兵器Issue(2)：38-41,4.
记忆合金自调节式高效微型节流制冷器机理研究
Study on High-Efficiency Miniature JT Cryocooler Regulated by Shape Memory Alloy
摘要
Abstract
For the purpose of designing a new high-efficiency miniature cryocooler regulated by shape memory alloy (SMA), the regulating mechanism is analyzed and demonstrated in this paper.The flux of the cryocooler is determined by the needle valve which is controlled by the SMA.The flux changes regu-larly as the needle vale moves, and the flux at different initial conditions are demonstrated.Besides, the optimization analysis of the heat exchanger is carried out to improve the efficiency of the cryocooler.The effects of the structure parameters, both inner and outer side of the tube, on heat transfer are analyzed and discussed in detail, and the effective way to improve the efficiency of JT cryocooler is obtained.关键词
节流制冷器/记忆合金/机理/流量/强化换热Key words
JT cryocooler/shape memory alloy/mechanism/flux/heat transfer enhancement分类
通用工业技术引用本文复制引用
马跃学,王娟,梁惊涛,杜冰雁..记忆合金自调节式高效微型节流制冷器机理研究[J].航空兵器,2015,(2):38-41,4.基金项目
航空科学基金资助项目(20132446001) （20132446001）
