Journal of Climate Change Research (한국기후변화학회지)

The Korean Society of Climate Change Research (한국기후변화학회)
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Comparison for Loss Rate of Low Concentration Nitrous Oxide in Tedlar Bag and Aluminium-Polyester Bag

테들러백과 알루미늄-폴리에스터백에 보관된 저농도 아산화질소의 유실율 비교

  • Lee, Woo Chan (Environmental Technology Division, Korea Testing Laboratory) ;
  • Park, Sung Bin (Environmental Technology Division, Korea Testing Laboratory) ;
  • Ko, Young Hwan (Environmental Technology Division, Korea Testing Laboratory) ;
  • Hyun, Seung Min (Environmental Technology Division, Korea Testing Laboratory) ;
  • Yoon, Kyoon Duk (Environmental Technology Division, Korea Testing Laboratory)
  • 이우찬 (한국산업기술시험원 환경기술본부) ;
  • 박성빈 (한국산업기술시험원 환경기술본부) ;
  • 고영환 (한국산업기술시험원 환경기술본부) ;
  • 현승민 (한국산업기술시험원 환경기술본부) ;
  • 윤균덕 (한국산업기술시험원 환경기술본부)
  • Received : 2016.11.07
  • Accepted : 2017.03.06
  • Published : 2017.03.31
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Abstract

The emission quantity of nitrous oxide is second largest among non-$CO_2$ greenhouse gas in Korea. In this study, we investigated loss rate of nitrous oxide which was filled in PVF and Al-PE bag as time goes on. Concentrations of tested samples were about 25 ppmv, 50 ppmv, 75 ppmv prepared by standard reference gas. In case of all experiments, loss rate of PVF bag was higher than Al-PE bag. After 18 days, loss rate of PVF bag was from 29.7% to 38.6% while Al-PE bag was from 21.7% to 23.7%. Especially the differential growed bigger when initial concentration of $N_2O$ in PVF bag was lower. And we also studied the effect of cock opening/closing procedures on loss rate. Prepared samples in experimental group were analyzed several times for 20 days and samples in control group were analysed only 1 time after 20 days. The experimental results showed that cock opening/closing procedures appeared to have little impact on loss rate.

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Acknowledgement

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