한국대기환경학회지 (Journal of Korean Society for Atmospheric Environment)

  • 제30권4호
  • /
  • Pages.387-397
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  • 2014
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  • 1598-7132(pISSN)
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  • 2383-5346(eISSN)
한국대기환경학회 (Korean Society for Atmospheric Environment)
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불화온실가스의 흡수단면적 측정을 통한 지구온난화지수의 추정

Estimation of The Global Warming Potential of Fluorinated Green House Gases

  • 김지혜 (덕산테코피아) ;
  • 이정순 (한국표준과학연구원 대기환경표준센터)
  • Kim, Jihye (DuksanTechopia) ;
  • Lee, Jeongsoon (Center for Gas Analysis, Korean Research Institute of Standards and Science (KRISS))
  • 투고 : 2014.05.21
  • 심사 : 2014.07.17
  • 발행 : 2014.08.31
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초록

This work aims at estimating global warming potentials (GWP) of $CF_3Br$ and HFC-134a among green house gases. It has been reported that they have much higher GWP than $CO_2$ in the atmosphere. $CF_3Br$, halon 1301 which is well known to be a fire extinguisher, as one of the bromine-containing halons has been banned since 2003 due to destruction of ozone. HFCs, a kind of chiller which replaced chlorofluorocarbons (CFCs) are one of greenhouse gases regulated by the Kyoto Protocol. In this study, we produced GWPs of $CF_3Br$ and HFC-134a by calculating a life time and measuring an absorption cross section to obtain a radiative forcing (RF). Their absorption cross sections were measured by using Fourier-transformed infrared spectroscopy (FTS) with a gas cell filled with their certified reference materials at room temperature. As a result, the RFs of $CF_3Br$ and HFC-134a were 0.32 and $0.168Wm^{-2}ppb^{-1}$, respectively and the GWPs were calculated as 7989, 6076, 3903 for $CF_3Br$ and 3855, 1300, 656 for HFC-134a for the time horizon of 20, 100, 500 years, respectively. Overall, uncertainty of the estimated GWPs can be estimated to be about 2.6%. Our results were compared with those proposed by the previous studies (IPCC, 2007; WMO, 1999).

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