인문학
사회과학
자연과학
공학
의약학
농수해양학
예술체육학
복합학
지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
초록·키워드
In this paper, the study of effects of flow parameters on flame structure and NOx emission concentration was performed in co-axial laminar partially premixed methane/air flames Such flow parameters as equivalence ratio(φ), fuel split percentage(σ), and mixing distance(x/D₁) were defined as a premixing degree and varied within φ=1.36~9.52, σ=50-100, and (x/D₁)=5 -20 The Image of OH* and NOx concentration were obtained with an ICCD camera and a NOx analyzer The flame structure observations show a categorization of partially premixed flames into three distinct flame regimes corresponding to φ<1.7(premixed flame structure), 1 7<φ<3 3(hybrid structure), and φ>33(diffusion flame structure existing a luminous sooting region) at 0=75%, and x/D₁=10 As σ decreases from 100% to 50%, and x/D₁ decreases, nonpremixed flame structure appear at low equivalence ratio relatively In addition, the measured emissions for NOx rise steeply from 41=1 7, to 41=3 3, then constants φ>476 NOx emissions decrease with Increase the level of premxing level. In conclusion, the main effect on flame structure and NOx production was at first equivalence ratto(φ), and next fuel split percentage(σ), and finally mixing distance(x/D₁).
본문·목차
인공지능 문자 인식 모델을 통해 추출된 텍스트로, 일부 오타나 오류가 포함될 수 있으나 지속적으로 개선 중입니다.
오류를 발견하셨다면 해당 부분을 드래그한 후 ' 를 통해 신고해주세요.
오류를 발견하셨다면 해당 부분을 드래그한 후 ' 를 통해 신고해주세요.
최근 본 자료 전체보기
UCI(KEPA) : I410-ECN-0101-2009-550-014426055