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
The present work investigated the NO<SUB>x</SUB> reduction effect that can be obtained by periodically changing the local equivalence ratio by repeatedly controlling the fuel flow. When there was no pressure pulsation of the fuel, the NO<SUB>x</SUB> emission was 30.3 ppm (O₂ vol.11%), and the NO<SUB>x</SUB> emission was reduced from 4% to 30% according to the pulsation variables. Since it is difficult to directly measure the instantaneous mass and volumetric flow rate during a periodic change on a 103-millisecond scale in an industrial-scale experiment, the measured pressure was used to calculate the mass and volumetric flow rate. The fuel and air supply pressure was fixed at 700 mmH₂O, and when flow pulsation occurred in the fuel pipe, the pressure was changed within the range of 150 to 694 mmH₂O. As a result of calculation through the one-dimensional model, it had a local equivalence ratio range of 0.108 to 0.776. In the chemical equilibrium domain of methane, the relationship between the local equivalence ratio change and combustion products according to the operating characteristics of the fuel-flow pulsation valve was discussed.
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.