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

作     者：YonglinJu ChaoWang 等 

作者机构：CryogenicLaboratoryChineseAcademyofSciencesP.O.Box2711Beijing100080China CryogenicLaboratoryChi 

出 版 物：《Journal of Thermal Science》 (热科学学报（英文版）)

年 卷 期：1998年第7卷第1期

页      面：61-66页

核心收录：

学科分类：080705[工学-制冷及低温工程] 08[工学] 0807[工学-动力工程及工程热物理] 

主　　题：pulse tube refrigerator multi-bypass dynamic experiment 

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 ***-flow phenomena are observed in this MPTR. The reasons of the multi-bypass version improved the performance of pulse tube refrigerator are given.