R134a/R23自然复叠制冷系统的仿真和优化研究  

Simulation and Optimization of R134a/R23 Auto-refrigeration Cascade System

作　　者：余华明[1] 

机构地区：[1]顺德职业技术学院机电工程系,广东佛山528333

出　　处：《顺德职业技术学院学报》2008年第2期15-17,共3页Journal of Shunde Polytechnic

摘　　要：针对使用R134a/R23混合制冷剂的自然复叠制冷系统,编制了基于NIST REFPROP的仿真程序。利用仿真和实验对系统各种优化措施的效果进行了分析和验证。两者都表明:分凝措施有利于降低系统蒸发温度、提高COP;而回热可以略微降低系统蒸发温度,但使系统COP降低、压缩机排气温度升高。A simulation program based on NIST REFPROP is designed in accordance with an auto-refrigeration cascade system using R134a/R23 mixing refrigerant. Results of all optimal measure of this system are analyzed and tested by simulation and experiment, which show that segregation will increase COP and decrease evaporation temperature; and regeneration causes a little decrease of evaporation temperature, but reduces COP and causes the increase of compressor discharge temperature.

关 键 词：自然复叠制冷系统 仿真 优化 

分 类 号：TB6[一般工业技术—制冷工程]