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이정만(Jungman Lee),이재원(Jaewon Lee),김형식(Hyeongsig Kim),권순태(Soontai Kwon),박찬준(Chanjun Park),엄인용(Inyong Ohm) 한국에너지학회 2008 한국에너지공학회 학술발표회 Vol.2008 No.-
본 논문에서는 가솔린 기관에서 흡입 밸브 각도가 엔진의 부분부하 성능에 어떠한 영향을 미치는지를 혼합비 반응 특성을 통해 알아보았다. 흡입 밸브각이 작은 엔진이 흡입 밸브 각이 큰 엔진에 비해 배기가스 중 질소산화물(BSNOx)의 양은 줄어들었고, 점화시기는 지각되었고, 제동연료소비율은 조금 개선되었다. 배기가스 중 질소산화물의 양이 줄고 점화시기가 지각 되었다는 것은 급속 연소가 일어났다고 판단할 수 있다. 급속 연소는 희박 연소시 발생할 수 있는 출력저하와 실화를 감소시킬 수 있다.시험 결과를 살펴보면 흡입 밸브 각이 작아지면 기관의 연소 성능이 좋아지는 것으로 판단 될 수 있다. This paper searched through mixture ratio response test whether exert effect that is some in part load performance of engine according to inlet valve angle in gasoline engine. Engines that inlet valve angle is narrow decreased quantity of NOx among exhaust gas than engine that inlet valve angle is wide, and ignition timing was retard, and fuel consumption improved a little. That quantity of NOx among exhaust gas decreases and ignition timing was retard can judge that fast burning occurred. Fast burning can decrease output decline and misfire that can happen at lean burning. Can be judged by thing which engine's combustion performance improves if inlet valve angle is narrow if examine test result.
단위세대의 유동적 조합을 통한 주거 전시장 건축 공간 구성
이혜경(Lee. Hyekyung),이정만(Lee. JungMan) 대한건축학회 2004 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.24 No.1
The purpose of this study is to design a housing exposition facility through fluid assemblage. And this proposal is to analyze design concepts of architectural space organizations of new housing exposition facility. These concepts are new system of exposition facility, fluid assemblage, design of the exterior, landscape, spiral system, and flexibility of the exposition space. The results of this study as follows; Design proposal of the architectural space organization of a housing exposition facility has an influence on new type of housing and new type of a housing exposition facility.
융합형 교육공간 조성을 위한 건축설계스튜디오 공간구성방식에 대한 사례분석과 설계적용연구
하나(Ha, Na),이정만(Lee, Jungman) 대한건축학회 2015 대한건축학회논문집 Vol.31 No.2
This study aims to develop the design principles of studio space through case analyses and a design exercise in order to provide organizational ideas for the formulation of integrative educational space for STEAM. Characteristics of integrative education was studied to identify the space requirements. Similarity between STEAM and architectural studio education was argued, and 14 cases of studio design were analysed and space organization principles were developed with the result. During the process of study, four categories of designed aspects are observed such as 1. intervention of sights 2. high ceiling space 3. organizational flexibility 4. encounter of exterior environment. They are used as the premises of analysis for the development of the 7 space organization methods: 1.Visual communication of multi-layered space 2.Actively-used connecting space 3.Vertically diverging space 4.Multi-leveled space 5.Blurring space boundary 6.Intercommunication of in/out spaces 7.Introducing natural light. Then the methods of space organization are applied in the architectural design project of a elementary school STEAM space.
공용 동선공간 체계에 의한 대형병원의 형태구성에 관한 연구
고영종,이정만 한국의료복지시설학회 2002 의료·복지 건축 Vol.8 No.1
Large hospital designs try to accommodate functional needs and spatial organization. The purpose of this study is to propose an effective compositional method by horizontal interconnection of public circulation spaces with 'hospital street'. 'Hospital street' and network of public circulation spaces are major elements of consideration for the design of large hospitals, which not only connect functional components but also provide satisfying environment, amenity an patients' life.