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동적 에너지 시뮬레이션에 기반한 지열원 및 공기열원 냉난방 시스템의 탄소배출량 분석
강연주(Yeonju Kang),채호병(Hobyung Chae),배상무(Sangmu Bae),김권예(Kwonye Kim),남유진(Yujin Nam) 대한설비공학회 2023 설비공학 논문집 Vol.35 No.10
In this study, the performance of two renewable energy systems, ground source heat pump (GSHP) system and air source heat pump (ASHP) system, was analyzed through dynamic energy simulation, and carbon emissions were quantitatively calculated through a life cycle assessment method based on the simulation results. The carbon emissions of the energy systems were calculated by dividing the life cycle evaluation stage into four categories: production, construction, operation, and disposal, and the calculation of carbon emissions in the operation stage was based on the annual performance analysis of the dynamic energy simulation. For 1 year of operation, the GSHP system had 14% higher carbon emissions than the ASHP system, while for 20 years of operation, the ASHP system had 39% higher carbon emissions than the GSHP. Compared to the ASHP system, the GSHP system can reduce carbon emissions in the operating stage by 42% per year by securing higher COP, and within 2 years, the carbon amount in the entire process can be lower than in the ASHP system.