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Estimation of Emission Factor (Residual Rate) and Inventory of HFC-134a from Mobile Air Conditioners of Scrap Truck

폐트럭으로부터 온실가스 HFC-134a의 탈루배출계수와 인벤토리 산정에 대한 연구

Kim, Eui-Kun;Kim, Seungdo;Kim, Hyerim;Lee, Young Phyo;Byun, Seokho;Lee, Dong Won
김의건;김승도;김혜림;이영표;변석호;이동원

  • Received : 2012.12.13
  • Accepted : 2013.05.22
  • Published : 2013.09.30

Abstract

This paper attempted to estimate the emissions of HFC-134a from scrap truck as a result of measuring the residual quantities of HFC-134a in air conditioner of scrap truck. We measured the residual amounts in the scrap truck of 138 by applying commercial recover for refrigerants. The average residual rate(disposal-phase emission factor) is reported to be $44.3{\pm}3.3%$ within a confidence interval of 95%. Recent year model trucks exhibit the higher residual rates. Little variation, however, is observed in regard to vehicle size. The HFC-134a emission quantity from scrap truck in 2011 is estimated to be 55,908 $tCO_2$-eq that demonstrates 21.4% increase to compare with that in 2007. As the numbers of truck have increased dramatically during the last two decades, the emissions of HFC-134a from scrap truck would increase sharply in the next coming years. HFC-134a is a very high GWP greenhouse gas. therefore have to reduce the emissions from the scrap truck and need to find ways to recycle. The chemical compositions of refrigerants from scrap truck are quite similar to those of new refrigerants, suggesting that the refrigerants from scrap truck could be reused as refrigerant.

Keywords

Scrap truck;Greenhouse gas;HFC-134a;Refrigerant;Emission factor;Residual rate

References

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Acknowledgement

Supported by : 환경부