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최종대 세계기독교통일신령협회 2002 統一世界 Vol.- No.11
평소에 평화대사 교육에 관심이 많고 지역사회에서 봉사정신이 투철하신 두 분을 모시고 청평에 갔다. 오래 전부터 정성과 기도로 분위기가 천국 같은 청평은 일찍이 통일그룹이 자리잡은 명당중에 명당이었다.
Alkylation of Aromatic Compounds via Free Radical Reactions
김병효,최종대 光云大學校 1995 論文集 Vol.24 No.-
카르보닐 작용기를 가진 electron-deficient 방향족 화합물들을 photostimulated 반응조건하에서 alkylmercury halide와 KI및 Dabco등을 사용하면, 알킬 라디칼의 방향족 화합물에의 첨가, deprotonation, 그리고 single electron transfer의 순차적인 과정을 거쳐 para alkylation 치환반응이 이루어졌다. Nitrobenzene의 경우 para alkylation대신 알킬 라디칼이 니트로 작용기와 먼저 반응하여 deoxygenation에 의한 생성물이 얻어졌다.
병렬형 하이브리드 버스의 시뮬레이션 입력 매개변수 변화에 따른 연비 민감도 분석
최종대(Jongdae Choi),정종렬(Jongryeol Jeong),이대흥(Daeheung Lee),신창우(Changwoo Shin),박영일(Yeong-il Park),임원식(Wonsik Lim),차석원(Suk Won Cha) 한국자동차공학회 2013 한국 자동차공학회논문집 Vol.21 No.6
High oil price and global warming problem are being continued all over the world. For this reason, fuel economy and emission of greenhouse gas are regulated by law in many countries. Therefore many companies are researching and producing hybrid electric vehicles (HEVs) which substitute conventional internal combustion engine vehicle. However, these researches and productions are restricted to mainly passenger cars. Because of cost and physical problems, commercial vehicles are difficult to evaluate fuel economy. So simulations are important and it is necessary to know how sensitive parameters that enter into simulation affect. In this paper, forward simulations using AVL Cruise were conducted for analysis of fuel economy for parallel hybrid bus and were repeated by changing each parameter. Based on these results, root mean square errors (RMSE) are calculated for analysis of fuel economy sensitivity. The number of target parameters are 15. These parameters were classified with high and low sensitivity parameter relatively.
EnergyPlus 기반의 건물에너지 해석 프로그램간의 차이 및 보정
최종대(Choi Jong-Dae),윤근영(Yun Geun-Young) 대한건축학회 2011 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.31 No.2(계획계)
The purpose of the paper is to secure reliable simulations using BIM building energy simulation programs based on EnergyPlus. DesignBuilder and OpenStudio were selected in this study. The initial result shows that there was a distinct difference between DesignBuilder and OpenStudio results of the identical virtual space. After identifying differences in EnergyPlus input files between the two programs, the impacts of changes in input variables on building energy consumption were analyzed. It was found that setting temperature was the most influential factor affecting the difference in simulation results.
E-REV 버스의 전기 주행 가능 거리를 고려한 배터리 용량 선정 연구
최종대(Jongdae Choi),이대흥(Daeheung Lee),정종렬(Jongryeol Jeong),박영일(Yeongil Park),차석원(Suk Won Cha) 한국자동차공학회 2012 한국자동차공학회 학술대회 및 전시회 Vol.2012 No.11
Nowadays, there are many researches about Electric Vehicle (EV) because of high oil prices and exhaust gas. However EV has limited mileage yet. To improve this problem, researches for Extended-Range Electric Vehicles (E-REV) which have a light internal engine to generate additional electric are progressing considerably. In this study, battery sizing process for E-REV Bus is discussed based on the required All Electric Range (AER). Once target performances like AER are decided, battery capacity is calculated using simple equation and backward simulation. To verify backward simulator’s reliability, it is compared with AUTONOMIE results. State of Charge (SOC) of battery pack is limited from 90% to 20% of the total battery capacity and simulations are conducted under several driving cycles. Considering the AER, the battery capacity and electric economy for regenerative ratio are obtained .