2024年12月27日 · The Technology Transitions Rule specified global warming potential (GWP) values of common substitutes for purposes of implementing this rule. These values are listed in 40 CFR 84.64 and are provided here as reference.

Most common refrigerants like R410A, R22, and R134A have a GWP of about 2,000. That means they are about 2,000 worse greenhouse gas than carbon dioxide. GWP of the most commonly used refrigerants in HVAC like R410A, R134A, and R32 is about 2,000. Methane GWP is within the 27 to 30 GWP range.

High-global warming potential (high-GWP) refrigerants include all ozone-depleting substances and any refrigerant with a GWP of 150 or higher. What is Global Warming Potential? Global Warming Potential, or GWP, is a measure of how destructive a climate pollutant is.

GWP是温室气体排放所产生的气候影响的指标，表示在一定时间内（20年、100年、500年），某种温室气体的温室效应对应于相同效应的CO 2 的质量，CO 2 的GWP=1.0。 通常基于100年计算GWP，记作GWP 100，《蒙特利尔议定书》和《京都议定书》都是采用GWP 100。 制冷剂应具有可接受的安全性，安全性主要包括毒性和可燃性，国家标准《制冷剂编号方法和安全性分类》GB/T 7778-2017将制冷剂的毒性分为A类（低慢性毒性）、B类（高慢性毒性），将可燃性分为第1 …

2023年9月15日 · Using the latest updated data from UNEP’s RTOC 2022 report, we have compiled the 100-year GWP and 20-year GWP values of hydrofluorocarbon-based (HFC) refrigerants. Our table includes single component HFCs as well as blends that include at least one HFC in their composition.

空調工程師學會(簡稱ASHRAE,American Society of Heating, Refrigerating, and Air-Condition. Engineers )公告其認可冷媒編號之HFCs 種類,包括純物質與混合物,以及國內常見之HCFCs 種類等之GWP值,此值目前是依據蒙特婁議定書以政府間氣候變遷專門委員會(簡稱IPCC,Intergovernmental Panel on Climate Change)之第四次評估報告(簡稱AR4,Fourth As.

The following table includes the 100-year time horizon global warming potentials (GWP) relative to CO2. This table is adapted from the IPCC Fifth Assessment Report, 2014 (AR5)i.

2024年8月16日 · The restriction of HFC-134a will occur under a broader prohibition of any substances with a Global Warming Potential (GWP) higher than 150 in the MVAC sector. HFC-134a will no longer be allowed in nonroad vehicles as of January 1, 2028.

For completeness, some HFCs that are not commonly used as refrigerants are listed. The GWP values apply under the Ozone Protection and Synthetic Greenhouse Gas Management Act 1989 (the Act). They are the 100-year GWPs from the Intergovernmental Panel on Climate Change (IPCC) fourth assessment report, 2007 (AR4).

2024年1月31日 · 美国环保署最终规则（Final rule）于2023年10月5日签署，该规则限制在气雾剂、泡沫以及制冷、空调和热泵产品和设备中使用全球升温潜能值（GWP值）较高的氢氟碳化物（HFC）。