冰箱CFCs及其替代物的温室效应比较

估算了 1980年到 2 0 2 5年国内家用冰箱用 CFCs及其替代物的年排放量 ,结果表明 CFC- 12和CFC- 11较高的排放期在 2 0 0 8年至 2 0 2 4年 ,年排放量在 2 96 9吨到 5 879吨 ODS之间 (以 CFC- 11为参照 ) ,CFCs的替代物的排放量在 2 0 2 5年后会继续增加。本文推导了 CFCs、HFC- 134a和 HCFC- 141b的年累积滞留量和以 CO2 为参考气体的当量变暖指数 (EWI,Equivalent Warm ing Index)的计算公式。计算结果表明它们的年累积滞留量和 WEI从 1980年到 2 0 2 5年一直在增加 ,2 0 2 5年后前者开始下降 ,后二者继续增加。与 CFCs、HFC-134a和 H CFC- 141b的 WEI相比较碳氢化合物的 WEI可忽略不计 ,与 CFCs相比较 ,HFC- 134a和 HCFC- 141b的 EWI仍不可忽略

Comparison of green house effect between CFCs and alternatives for CFCs from household refrigerator

The annual emission of CFCs(CFC 11 and CFC 12) and alternatives for CFCs from domestic household refrigerator have been estimated under several substitutive scenario for the years 1980~2024.The results show that the annual emission of CFCs is larger during 2008~2024,the annual emission of CFCs is 2969~5879 ton(with CFC 11 as reference gas).The annual emission of substitutes for CFCs will continue increasing after 2025.The formulas for annual accumulative remains of CFCs,HFC 134a and HCFC 141b are put forward,the remains are converted into the Equivalent Warming Index(EWI) with CO 2 as reference gas.The results show that remains and EWI have been increasing from 1980 to 2025,the former will start to decrease after 2025,the latter will continue to increase.Comparing with that of CFCs,HFC 134a and HCFC 141b,EWI of hydrocarbon can be almost neglected.Comparing with EWI of CFCs,EWI of HFC and HCFC 141b can not be neglected.