Dynamic Experimental Study of a Multi-bypass PulseTube Refrigerator with Two-bypass Tubes  

作　　者：YonglinJu ChaoWang 等 

机构地区：[1]CryogenicLaboratory,ChineseAcademyofSciences,P.O.Box2711,Beijing,100080,China [2]CryogenicLaboratory,Chi

出　　处：《Journal of Thermal Science》1998年第1期61-66,共6页热科学学报（英文版）

摘　　要：A dynamic experimental apparatus to measure the instantaneous velocity and pressure in the multi-bypass pulse tube refrigerator (MPTR) was designed and constructed. Some theortant experimental results of the instantaneous measurements of the velocity and the pressure in the MPTR with two-bypass tubes during actual operation are presented. The effects of the middle-bypass version on the dynamic pressure and mass flow rate at the cold end of the pulse tube are evaluated from experimental measurements.DC-flow phenomena are observed in this MPTR. The reasons of the multi-bypass version improved the performance of pulse tube refrigerator are given.

关 键 词：pulse tube refrigerator MULTI-BYPASS dynamic experiment 

分 类 号：TB657.4[一般工业技术—制冷工程]