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A Study of GHG-AP Integrated Inventories and Alternative Energy Use Scenario of Energy Consumption in the University

대학 내 에너지 소비에 따른 온실가스-대기오염 통합 인벤토리 및 대체 에너지 사용 시나리오 분석

  • Jung, Jae-Hyung (Department of Environmental Energy Engineering, Seoul National University of Science and Technology) ;
  • Kwon, O-Yul (Department of Environmental Engineering, Seoul National University of Science and Technology)
  • 정재형 (서울과학기술대학교 에너지환경공학과) ;
  • 권오열 (서울과학기술대학교 환경공학과)
  • Received : 2014.07.28
  • Accepted : 2014.09.16
  • Published : 2014.09.30

Abstract

The university is one of the main energy consumption facilities and thereby releases a large amount of greenhouse gas (GHG). Accordingly, efforts for reducing energy consumption and GHG have been established in many local as well as international universities. However, it has been limited to energy consumption and GHG, and has not included air pollution (AP). Therefore, we estimated GHG and AP integrated emissions from the energy consumed by Seoul National University of Science and Technology during the years between 2010 and 2012. In addition, the effect of alternative energy use scenario was analysed. We estimated GHG using IPCC guideline and Guidelines for Local Government Greenhouse Inventories, and AP using APEMEP/EEA Emission Inventory Guidebook 2013 and Air Pollutants Calculation Manual. The estimated annual average GHG emission was $11,420tonCO_{2eq}$, of which 27% was direct emissions from fuel combustion sectors, including stationary and mobile source, and the remaining 73% was indirect emissions from purchased electricity and purchased water supply. The estimated annual average AP emission was 7,757 kgAP, of which the total amount was from direct emissions only. The annual GHG emissions from city gas and purchased electricity usage per unit area ($m^2$) of the university buildings were estimated as $15.4kgCO_{2eq}/m^2$ and $42.4tonCO_{2eq}/m^2$ and those per person enrolled in the university were $210kgCO_{2eq}$/capita and $577kgCO_{2eq}$/capita. Alternative energy use scenarios revealed that the use of all alternative energy sources including solar energy, electric car and rain water reuse applicable to the university could reduce as much as 9.4% of the annual GHG and 34% of AP integrated emissions, saving approximately 400 million won per year, corresponding to 14% of the university energy budget.

Keywords

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