三种常用自然复叠制冷系统的设计与特性分析  

Design and Analysis of Three Type Auto-refrigeration Cascade System

作　　者：余华明[1] 徐言生[1] 

机构地区：[1]顺德职业技术学院,广东顺德528333

出　　处：《流体机械》2008年第6期76-79,60,共5页Fluid Machinery

摘　　要：对使用R134a/R23混合制冷剂的三种常用自然复叠制冷系统进行了设计,比较分析了这三种系统的蒸发温度、COP、压缩机排气温度等运行参数特性,并研究了在制冷剂配比改变、蒸发温度改变时三种系统的变化特性。对这三种系统特性的掌握将有利于自然复叠系统的选型设计。Three type auto-refrigeration cascade systems are designed. These systems use R134a/R23 refrigerant mixture. And the characteristics of running parameters, such as evaporating temperature, COP and exhaust temperature, is analyzed and compared. Then the change characteristics of these systems are studied when the refrigerant mass fraction is changed and the evaporating temperature is changed. These studies will be benefit to the auto-refrigeration cascade system designing.

关 键 词：自然复叠制冷系统 混合制冷剂 设计 分析 

分 类 号：TB6[一般工业技术—制冷工程]