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운항실습선 교육생의 승선 숙련도에 따른 피난행동특성 비교분석
황광일(Kwang-il Hwang),이윤석(Yun-Sok Lee) 한국항해항만학회 2014 한국항해항만학회지 Vol.38 No.3
다양한 여가 활동 수요증가와 함께 국내에서도 여객선과 크루즈선의 이용자수가 증가하고 있다. 그러나 과거 10년간 연평균 15건 이상의 여객선 안전사고가 발생했음에도 불구하고 승조원과 승객의 피난행동특성과 관련된 연구는 매우 미흡한 실정이다. 본 논문은 승선생활 환경에 익숙한 3학년과 승선생활이 생소한 1학년을 대상으로 선박에서의 승선생활 숙련도에 따른 각 피난행동특성을 비교분석한 것이다. 연구결과를 정리하면 다음과 같다. 3학년 실험에서 승조원의 안전성 향상을 위해서는 다양한 재난대응 시나리오의 개발과 실천 교육이 필요하다는 사실을 알게 되었고, 1학년 실험에서는 신규 승조원과 승객을 대상으로 한 초기 피난안전교육과 선내구조에 익숙한 기존 승조원에 의한 피난안전 유도 임무의 중요성을 확인할 수 있다. 또한 재난상황과 그 전개과정에 대한 상황인식 공유가 전체 피난시간에 큰 영향을 미친다는 사실을 설명할 수 있으며, 피난상황 발생 시 승선자의 안전성 향상을 위해서는 피난계획기법 상 선장과 관련 승조원이 반드시 선내 모든 피난경로와 경로별 피난자수를 통제할 수 있어야만 한다는 사실을 확인하였다. With the increasing needs on various leisure activities, the users of passenger ships and cruisers have been increased year by year. Although over 15 accidents per year betide on domestic passenger ships for last decade, the researches on the safety of crews and guests on boards are difficult to find. This study performed the comparative analysis by experiments on the evacuation characteristics between experience levels on board a training ship. The followings are the results. From the seniors' experiments, it is found that more various evacuation scenarios have to develope and drill as a part of education contents. And from the freshmen's trials, the importances of the evacuation education and the roles of existing crews on evacuation guides are pointed out as to increase the safety of new crews and/or guests who are not accustomed to onboard a ship. On the other, it is explained that the communications between evacuees are worthy and useful, and also save more evacuation times. And on the viewpoint of evacuation methodology, it is clear that captain and evacuation-related crews have to control all the evacuation passages and evacuees of each passages to save more lives.
황광일(Kwang-il Hwang),우상우(Sang-woo Woo),임성택(Seong-taek Lim) 한국마린엔지니어링학회 2007 한국마린엔지니어링학회 학술대회 논문집 Vol.2007 No.-
The air change rates of Bridge and ECR are satisfied with the standards for commercial ship, but those of crew's cabin and restaurant are insufficient. Except the conference room which uses very intensively at about 21 o'clock, all the other cabins are measured as 20~25℃. It was happened that the humidity varies 30% at the same cabin. On the other hand, ECR where AHU is operated with a independent PAC installed in the room shows that the temperature and humidity variations are following the wave of on-off operating time of PAC. And it gives very unstable conditions to ECR.
남해 - 통영 주변 도서지역에서 에너지자원 조사를 위한 풍력과 일사량의 측정
황광일(Kwang-il Hwang) 한국항해항만학회 2013 한국항해항만학회지 Vol.37 No.1
도서지역에 대한 에너지공급시스템의 다양화를 위해서는 지역 내에 풍부한 자연에너지 활용이 필요하고 이를 통해 도서주민의 생활환경 개선이 가능하다. 이에 본 연구에서는 지역에 특화된 자연에너지를 이용한 전력공급시스템을 제안하기 위한 기초자료 구축을 목적으로 통영-남해 해역에 위치한 4개 섬의 풍력과 일사량을 1년간 (2010년 11월~2011년 10월) 실측하여 발생 특성을 파악하고 활용가능성을 비교 평가하였다. 본 연구의 성과를 정리하면 다음과 같다. 풍향별 발생 빈도수를 이용하여 작성한 바람장미로 부터 4개 섬의 풍향 특성이 크게 다르다는 것을 알았다. Rayleigh 속도확률분포를 이용한 평가에 따르면 KR섬과 SS섬은 2~5㎧의 바람이 많이 불지만, SR섬과 YJ섬은 2㎧ 이하의 저속 바람의 발생 확률이 매우 높은 것으로 분석되었고, 4개 섬 각각의 풍력발전량에는 큰 차이가 있었다. 4개 섬 모두에서 최대 일일 일사량은 2011년 7월에 발생하였지만, 평균 일일 일사량은 2011년 4월이 가장 컸다. 또한 월별 누적 일사량의 경우 2011년 4월이 가장 많았고, 2010년 12월 가장 적었다. For the diversity of energy supply system and the improvement in the habitants’ living environments of the islands, it is possible and necessary to use the natural energy as resources of the electric power generation system. In this study, the characteristics of wind and solar radiation on 4 islands offshore Namhae-Tongyoung of Korea were measured for one year from November 2010 to October 2011 and analyzed in relation to energy resources survey. As a result of measurement and analysis, the respective wind rose diagrams of 4 islands were made, and showed that the frequencies of wind directions were quite different from among the islands. The Rayleigh probability distribution of wind velocity showed that the wind speeds of KR and SS were mainly 2~5㎧, and the respective quantities of electric power generation of 4 islands were shown to be different. The variation of solar radiations and potential quantity of those uses were measured to be similar to each other among 4 islands.
황광일(Kwang-il Hwang),윤정하(Jeong-ha Youn),김유진(You-jin Kim),신동걸(Dong-keol Shin),이상일(Sang-il Lee),이형기(Hyong-ki Lee),홍원화(Won-hwa Hong) 한국마린엔지니어링학회 2008 한국마린엔지니어링학회 학술대회 논문집 Vol.2008 No.-
The purpose of this study is to simulate and evaluate the evacuation time of un-trained passengers on boards with various visibility conditions at the mock fire. Simulation results show that at least 54 seconds is needed for safe evacuation of standard fire condition. As the results of measurements, to save more lives at the conditions of low visibility conditions and obstacles, which make passengers at a state of confusion, new mechanical systems and inducing lights for ships must be reconsidered immediately.
Kwang-il Hwang(황광일) 한국통신학회 2008 韓國通信學會論文誌 Vol.33 No.8B
The intersection collision avoidance service among various telematics application services is regarded as one of the most critical services with regard to safety. In such safety applications, real-time, correct transmission of service is required. In this paper, we study on efficient infrastructure architecture for intersection collision avoidance using a cooperative mechanism between vehicles and wireless infrastructure. In particular, we propose an infrastructure, called CISN (Cooperative Infrastructure associated with Sensor Networks), in which proper numbers of sensor nodes are deployed on each road, surrounding the intersection. In the proposed architecture, overall service performance is influenced by various parameters consisting of the infrastructure, such as the number of deployed sensor nodes, radio range and broadcast interval of base station, and so on. In order to test the feasibility of the CISN model in advance, and to evaluate the correctness and real-time transmission ability, an intersection sensor deployment simulator is developed. Through various simulations on several environments, we identify optimal points of some critical parameters to build the most desirable CISN.