热声驱动脉管制冷机系统的效率评价  

Efficiency Evaluation for Pulse Tube Coolers Driven by a Thermoacoustic Engine

作　　者：严伟林[1] 邱利民[1] 孙大明[1] 陈萍[1] 

机构地区：[1]浙江大学制冷与低温研究所,杭州310027

出　　处：《低温与超导》2004年第3期13-15,共3页Cryogenics and Superconductivity

基　　金：教育部优秀青年教师资助计划;浙江省自然科学基金资助的项目

摘　　要：采用热声压缩机驱动脉管制冷机将完全消除系统的机械运动部件 ,大大提高了运行的可靠性。随着热声驱动脉管制冷机研究的不断深入 ,人们迫切需要能真实反映系统效率的评价标准 ,文中给出三种评价方法 :(1 )系统的总效率 ;(2 )系统的相对卡诺效率 ;(3)系统的火用效率。建议采用火用效率对系统效率进行综合评价 。Driving a pulse tube cooler by using thermoacoustic engine completely eliminates moving parts of refrigeration system, which leads to more reliable operation. People urgently need a reasonable evaluation standard that can really reflect the efficiency of such a complicated refrigeration system. Three standards, such as total efficiency; relative Carnot efficiency; energy efficiency are introduced and compared. Energy efficiency is recommended, which can provide instructive reference for the improvement and utility of thermoacoustic refrigeration systems.

关 键 词：热声压缩机 脉管制冷机 效率评价 YONG效率 相对卡诺效率 

分 类 号：TB651[一般工业技术—制冷工程]