在臭氧层消耗与全球变暖这两个全球问题的制约下,CFCs/HCFCs替代技术的新发展

Development of the CFCs/HCFCs alternatives subjected to ozone depletion and global warming problems

继臭氧层消耗问题，全球变暖问题成为选择制冷工质的另一制约因素。ＨＦＣｓ具有较高的全球变暖潜能值（ＧＷＰ），而自然工质有可燃性等问题，在替代ＣＦＣｓ／ＨＣＦＣｓ时存在一定争议。本文介绍了ＨＦＣｓ和自然工质作为替代工质的发展状况，同时针对全球变暖问题讨论了它们的发展前景。

The compatibility with the environment has become an essential criterion when a new refrigerant is selected to alternate CFCs/HCFCs. The problem of global warming must be considered while focus is fixed upon the problem of ozone depletion. HFCs and natural refrigerants are both developed to alternate CFCs/HCFCs. However, HFCs have high GWP (Global Warming Potential), and the natural refrigerants have some properties such as flammability that restrict their aplications. some new developments are introduced in the study of HFCs.