摘要
为获得150 K的低温,提出一种四级自动复叠制冷系统的设计,选择R134a/R23/R14/R50非共沸混合工质作制冷剂。通过NIST软件对混合工质热力参数用进行计算,根据文献和经验公式对压缩机、冷凝器、蒸发器、换热器进行计算和选型。
To obtain the low temperature of 150 K,the design of four-stage auto-cascade refrigeration （ACR） was set up. The R134a/R23/R14/R50 refrigerant mixture was used in the system. The each point＇ s parameters of the system were calculated using NIST. According to the literatures and the empirical formula,the compressor, condenser, evaporator and heat exchanger were designed and choosed.
出处
《低温工程》
CAS
CSCD
北大核心
2009年第5期37-40,共4页
Cryogenics
关键词
自动复叠制冷系统
系统设计
混合工质
auto-cascade refrigeration system
system design
mixture refrigerant
