부실을 가진 정적연소기에서 부실형상의 최적화 연구

박종상; 강병무; 염정국; 하종률; 정성식

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자료유형: 학술저널

저자정보: 박종상 (동아대학교 기계공학과 대학원) 강병무 (동아대학교 기계공학과 대학원) 염정국 (동아대학교 기계산업시스템공학부) 하종률 (동아대학교 기계산업시스템공학부) 정성식 (동아대학교 기계산업시스템공학부)

저널정보: 한국분무공학회 한국액체미립화학회지 한국액체미립화학회지 제10권 제2호

발행연도: 2005.1

수록면: 1 - 9 (9page)

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An experimental study was carried out to obtain the fundamental data about the effects of radical ignition on premixture combustion. A CVC(constant volume combustor) divided into the sub-chamber and the main chamber was used. Numerous narrow passage holes are arranged between the main chamber and the sub-chamber. The products including radicals generated by spark ignition in tile sub-chamber derives the simultaneous multi-point ignition in the main chamber. We have examined the effects of the sub-chamber volume, the diameter and number of passage holes, and the equivalence $ratio({\Phi})$ on the combustion characteristics by means of burning pressure measurement and flame visualization. In a CVC, the overall burning time including the ignition delay became very short and the maximum burning pressure was slightly increased by the radical ignition(RI) method in comparison with those by the conventional spark ignition(SI) method. Combustible lean limit by RI method is extended by ${\Phi}=0.25$ compared with that by SI method. Also, In cases of charging the number and the diameter for the fixed total cross section of the passage holes, combustion period increased significantly at a sub-chamber with a single hole, but those of the other conditions had almost a similar tendency in the sub-chamber with 4 or more holes. regardless of equivalence ratio. Therefore, it was Proved that a critical cross section exists with the number of passage holes.

#Radicals induced injection #Sub-chamber #Passage hole #CVC #Constant volume combustor)

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