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파일럿 스케일 버너에서 바이오 중유 및 바이오 원유 혼합연료의 연소 특성
정연우 ( Yeonwoo Jeong ),류영현 ( Younghyun Ryu ),최상규 ( Sangkyu Choi ),최연석 ( Yeonseok Choi ),한소영 ( Soyoung Han ),응웬반꾸잉 ( Quynhvan Nguyen ) 한국폐기물자원순환학회 2022 한국폐기물자원순환학회지 Vol.39 No.6
Carbon neutrality is a balance between emitting carbon and absorbing carbon from the soil, forest, and oceans. To achieve carbon neutrality by 2050, a variety of research on energy such as solar, wind, hydrogen, biomass, and waste energy has been performed worldwide. Bio-fuel oil and bio-crude oil are considered promising energy resources to achieve carbon neutrality because they can be effectively used not only for heat energy but also for transport fuel. In this study, an experiment on the combustion characteristics of bio-fuel oil and bio-crude oil blends was conducted. The mixtures of biofuel and conventional diesel fuel were also studied. A conventional oil burner with a 35 kW capacity was modified into a downward injection type and to adopt an air-blast atomizing nozzle. Bio-fuel oil was made from waste oil and bio-crude oil was derived from coffee grounds. The temperature distributions in the combustion chamber and the gaseous emissions were compared at various blending ratios. When the bio-fuel oil was blended with bio-crude oil from the coffee ground, nearly complete combustion was observed, except for the 100% bio-crude oil, with the emission of a large amount of CO. It was also shown that as the ratio of bio-crude oil was increased, NO concentration increased due to the nitrogen content in the bio-crude oil. In the cases where biofuel was blended with diesel fuel, all cases showed close to complete combustion, where the temperature of the combustion chamber was raised with an increasing ratio of diesel.