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자료유형
학술저널
저자정보
안준 (조선대학교) 김하진 (조선대학교) 전영남 (조선대학교)
저널정보
한국폐기물자원순환학회 한국폐기물자원순환학회지 한국폐기물자원순환학회지 제38권 제5호
발행연도
2021.10
수록면
426 - 433 (8page)
DOI
https://doi.org/10.9786/kswm.2021.38.5.426

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The effects of conventional fossil fuels on the environment, such as air and carbon pollutions, have limited their use as an energy resource. To address this problem, biogas has emerged as an alternative energy source owing to its sustainable and renewable characteristics. In this study, we proposed a new type of cavity matrix combustor that can directly burn the products of small and medium-sized biogas facilities without the use of complicated facilities, such as CO 2 separation or purification facilities. To identify the combustion characteristics of the cavity matrix combustor, parametric screening studies were conducted based on changes in air ratio, total gas supply, biogas composition, and exhaust recirculation, and the optimal operating conditions were suggested based on the results. The performance test of the cavity matrix combustor revealed that the combustor exhibited excellent biogas combustion characteristics. In addition, the optimal operating air ratio and total gas supply conditions at which the combustor exhibited a combustion efficiency of 79.2% for a biogas composed of 60% CH 4 and 40% CO 2 were 1.1 and 30 L/min, respectively. Furthermore, the content of CO and UHCs, which were unburned gases, in the combustor were 0.03 and 0.01%, respectively, and that of NOx was 1 ppm. In addition, the combustion efficiency of the combustor slightly increased to 86.59% when combustion gas recirculation was performed.

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