【摘要】 由于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。给出了CO2跨临界制冷循环的典型流程和特点;对国内外针对超临界CO2特性的、CO2制冷循环、CO2制冷设备的开发以及CO2跨临界循环系统安全性与可靠性等四个方面的研究现状进行了综述,指出了二氧化碳跨临界循环制冷今后的发展趋势。更多还原

【Abstract】 Since the environmental protection problem such as the ozone layer destroying by refrigerant and the whole world green-house effect is outstanding gradually in recent years,CO2 begins to be taken seriously again as ideal refrigerant.This article produced the typical flow and the characteristic of the CO2 transcritical refrigeration cycle.Four aspect research current situation——the properties of supercritical CO2,CO2 refrigeration cycles,CO2 refrigeration equipment exploitation and the system security and reliability of the CO2 transcritical circulation——has been carried on the summary.The development tendency of the carbon dioxide transcritical circulation refrigeration has been pointed out.更多还原