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초록·키워드
In this study, the emission characteristics of residential wood-fired boilers were identified and the CH4 emission factor was developed. We conducted field surveys of exhaust gas from stacks of wood-fired boilers over a four-day period. The CH₄ and CO levels of the exhaust gases were analyzed in the laboratory, as were those of the firewood used in the wood-fired boilers. Regarding emission characteristics, CH₄ concentration was low with the fan turned on because of the amount of combustion air being added to the furnace. Spearman’s rho correlation analyses were performed to investigate the correlations between CH₄ concentration and CO according to exhaust gas and temperature in the furnace. The analysis showed that the higher was the concentration of CO in the exhaust gases, the higher was the concentration of CH₄. However, the higher was the temperature in the furnace, the lower was the concentration of CH₄.
The CH₄ emission factor was 130.15 kgCH₄/TJ, as estimated and compared to the Intergovernmental Panel on Climate Change (IPCC) default values. A comparison between wood stoves and wood-fired boilers showed lower CH₄ emission factors for the boilers. The difference between CH₄ emission factors in this study and those of the IPCC were likely because of the specific combustion technologies and the total moisture content of the fuel used.
The CH₄ emission factor was 130.15 kgCH₄/TJ, as estimated and compared to the Intergovernmental Panel on Climate Change (IPCC) default values. A comparison between wood stoves and wood-fired boilers showed lower CH₄ emission factors for the boilers. The difference between CH₄ emission factors in this study and those of the IPCC were likely because of the specific combustion technologies and the total moisture content of the fuel used.
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UCI(KEPA) : I410-ECN-0101-2023-453-000288778
