摘要: |
制冷剂是蒸气压缩循环中必不可少的工作流体。氢氟烷烃类化合物作为目前制冷、空调和热泵设备中的主要制冷剂,面临着引起全球变暖等环境问题,亟需开发应用性能相似、环境性能友好的新型制冷剂。本文详细介绍了不同制冷剂在温度范围?100~200 °C的蒸气压缩循环应用场景中的使用现状,并综述了具有前景的低全球变暖潜值(global warming potential,GWP)制冷剂替代方案的研究进展。在此基础上,对五种低GWP制冷剂HFO-1234yf、HFO-1234ze(E)、HFO-1234ze(Z)、HCFO-1233zd(E)、HFO-1336mzz(Z)在实际应用系统中的最新研究及需关注的问题进行了总结,为新一代制冷剂的选择与使用提供参考。 |
关键词: 制冷剂 全球变暖潜值 空调 热泵 有机朗肯循环 |
DOI: |
投稿时间:2023-03-24 修订日期:2023-06-30
录用日期:2023-08-03 |
基金项目: |
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Research Progress on the Application of Novel Low GWP Refrigerants in the Temperature Range ?100 ~ 200 °C |
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Abstract: |
Refrigerant is the essential working fluid in a vapour-compression refrigeration cycle. Hydrofluorocarbons (HFCs) are currently used as refrigerants in refrigeration, air-conditioning, and heat pump systems. However, many of these refrigerants have relatively high global warming potential (GWP). A global phase-down of HFCs was negotiated. Hence, replacement refrigerants with high thermal performance and low environmental impact must be found. This paper presents a comprehensive review of the refrigerants in the different vapour-compression cycle applications covering the temperature range from ?100 °C to 200 °C. The most promising low GWP alternatives are proposed. Moreover, five refrigerants HFO-1234yf, HFO-1234ze(E), HFO-1234ze(Z), HCFO-1233zd(E), and HFO-1336mzz(Z) for use in vapour compression equipment are summarized. Based on a review of the existing literature, guidelines for the selection and use of the new generation refrigerants are presented. |
Key words: refrigerant global warming potential air conditioning heat pump organic Rankine cycle |