R448A在冷库中的应用探讨  

Discussion on the Application of R448A in Cold Storage

作　　者：张川 吴寅辉 Zhang Chuan;Wu Yinhui(Huashang International Engineering Co.Ltd.,Beijing,100069,China)

机构地区：[1]华商国际工程有限公司,北京100069

出　　处：《冷藏技术》2021年第1期24-27,共4页Journal of Refrigeration Technology

摘　　要：本文通过对北京地区单层装配式冷库建立物理模型,分别对库体容积为1613m³、6451m³、43200m³的冻结物冷藏库的制冷系统使用R448A进行理论计算,对比分析了制冷剂R448A与R404A的压缩机COP、压缩机排气温度、单位制冷量、系统能耗、系统制冷剂充注量,为冷冻冷藏行业环保、绿色、节能发展提供了理论和数据支持。This paper establishes a physical model of a single-layer prefabricated cold storage in Beijing, and conducts theoretical calculations using R448 A in cold storage refrigeration system from the storage volume of 1613 m³, 6451 m³, 43200 m³ respectively. And comparatively analyzed the compressor COP, compressor discharge temperature, unit cooling capacity, system energy consumption and system refrigerant charge of R448 A and R404 A from technical perspective. The results provide theoretical and statistical support for the development cold chain logistics with environmental protection, green and energy saving.

关 键 词：冷库 制冷系统 R448A R404A 

分 类 号：TB657.1[一般工业技术—制冷工程]