制冷技术的未来挑战

Future challenge of refrigeration technology

主要讨论在制冷技术的各种应用场合中与最佳选用替代制冷剂有关的全球变暖问题。在总结制冷剂的简要历史后,着重提出一个极其重要的问题,即根据全球环境问题和提高制冷与空调系统能效的判断标准来确定最佳的制冷剂。在有希望的候选制冷剂中,所谓的“自然5种”虽然还有不少有待解决的问题,但是因为它们的潜力而令人注目。本文对未来的前景作出几点结论。

The present author aims to discuss primarily on the global warming issue in conjunction with the optimum selection of alternative refrigerants for various application of refrigeration technology. After a brief history of refrigerants is summarized, an emphasis will be given to an existing vital issue to identify the optimum refrigerants in the light of various criteria including global environmental issues and related improvement in energy efficiency for the refrigeration and air conditioning systems. The so - called ＂ natural fives＂ among the promising candidates will be highlighted because of their potentiality, although there are still lots of problems to be solved. The paper will conclude with several overviews on future perspectives in years to come.