Journal of the Korean Wood Science and Technology

The Korean Society of Wood Science & Technology (한국목재공학회)
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Assessment of Carbon Emission for Quantification of Environmental Load on Structural Glued Laminated Timber in Korea

국산 구조용 집성재의 환경부하 정량화를 위한 온실가스 배출량 분석

  • Chang, Yoon-Seong (Department of Forest Products, National Institute of Forest Science) ;
  • Kim, Sejong (Department of Forest Products, National Institute of Forest Science) ;
  • Son, Whi-Lim (Econetwork) ;
  • Lee, Sang-Joon (Department of Forest Products, National Institute of Forest Science) ;
  • Shim, Kug-Bo (Department of Forest Products, National Institute of Forest Science) ;
  • Yeo, Hwanmyeong (Department of Forest Sciences, College of Agriculture and Life Sciences, Seoul National University) ;
  • Kim, Kwang-Mo (Department of Forest Products, National Institute of Forest Science)
  • 장윤성 (국립산림과학원 임산공학부) ;
  • 김세종 (국립산림과학원 임산공학부) ;
  • 손휘림 (에코네트워크(주)) ;
  • 이상준 (국립산림과학원 임산공학부) ;
  • 심국보 (국립산림과학원 임산공학부) ;
  • 여환명 (서울대학교 농업생명과학대학 산림과학부) ;
  • 김광모 (국립산림과학원 임산공학부)
  • Received : 2016.02.04
  • Accepted : 2016.03.14
  • Published : 2016.05.25
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Abstract

This study was aimed to quantify the amount of carbon dioxide emissions and to suggest suitable plans which consider the carbon emission reduction in the manufacturing process of the domestic structural glued laminated timber. Field investigation on two glued laminated timber manufacturers was conducted to find out material flow input values such as raw materials, transportation, manufacturing process, and energy consumption during manufacturing process. Based on the collected data and the relevant literatures about life cycle inventory (LCI), the amount of carbon dioxide emission per unit volume was quantified. Results show that the carbon dioxide emissions for sawing, drying and laminating process are 31.0, 109.0, 94.2 kg $CO_2eq./m^3$, respectively. These results show 13% lesser amount of total carbon dioxide emissions compared with the imported glued laminated timber in Korea. Furthermore, it was decreased about 37% when the fossil fuel would be replaced with biomass fuel in drying process. Findings from this study is effectively used as the basic data on the life cycle assessment of wooden building.

본 연구의 목적은 국산 구조용 집성재를 대상으로, 제조과정의 탄소배출을 정량화하고 탄소배출 저감방안을 제시하는 것이다. 총 2개소의 구조용 집성재 제조업체를 대상으로 원료, 수송, 제조 공정, 제조에 의한 에너지소비량 등을 현장 실사하였다. 현장에서 수집한 자료 및 구축된 전과정목록과 같은 관련문헌을 토대로 단위부피당 탄소배출을 정량화하였다. 국산 구조용 집성재의 제재 및 건조, 집성 공정별 온실가스 배출결과는 각각 31.0, 109.0, 94.2 kg $CO_2eq./m^3$으로 나타났다. 수입 구조용 집성재와 비교하였을 때 약 13% 온실가스를 적게 배출하는 것으로 나타났다. 또한 기존의 건조 에너지원을 바이오매스로 전환시에는 기존 대비 37%의 온실가스를 감축하여 친환경성을 제고할 수 있을 것으로 판단되었다. 본 결과는 향후 목조주택의 환경성을 규명하기 위한 전과정평가 수행 시, 투입된 목재제품의 전과정목록분석을 위한 기초자료로 활용될 것으로 기대된다.

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References

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