应用于展示柜的CO_2蒸气压缩式制冷系统循环的分析

Analysis of display cabinets with CO_2 vapor compression cycle refrigeration system

近年来,制冷剂对臭氧层的破坏和全球温室效应等环保问题日益突出,CO2作为理想的制冷剂开始重新得到重视。本文介绍理论的跨临界CO2蒸气压缩式制冷循环,对实验室现有CO2跨临界制冷系统进行一系列研究,并与常用制冷剂的循环进行对比,认为CO2制冷循环取代传统制冷循环应用于展示柜可大大提高制冷效率。

In recent years, as the refrigerant damage to the ozone layer, global warming and other environmental problems have become increasingly prominent, CO2 has started to be emphasized again as an ideal refrigerant. Introduces the general theory cycle of transeritical CO2 vapor compression refrigeration, carries out a series of research based on a set of actual CO2 transcritical refrigeration system and contrasts with the cycle used commonly refrigerant. Gets the conclusion that if CO2 refrigeration cycle come to replace the traditional refrigeration cycle used in display cabinets, it can greatly enhance the refrigeration efficiency.