• Journal of the Korea Safety Management & Science
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• v.19 no.3
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• pp.1-9
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• 2017

In the industrial field, various type of fuel have been used for product processing facilities. Recent for 10 years, the usage of natural gas (NG) was gradually increased. Because it has many merits; clean fuel, no transportation, storage facility and so on. There are common safety concept that strict explosion protection approaches are needed for facilities where explosive materials such as flammable liquid, vapor and gases exist. But some has an optimistic point of view that the lighter than air gases such as NG disperse rapidly, hence do not form explosion environment upon release into the atmosphere, many parts has a conventional safety point of view that those gases are also inflammable gases, hence can form explosion environment although the extent is limited and present. In this paper, the heating equipments (Hot Oil Heater) was reviewed and some risk management measures were proposed. These measures include hazardous area classification and explosion-proof provisions of electric apparatus, an early gas leak detection and isolation, ventilation system reliability, emergency response plan and training and so on. This study calculates Hazardous Area Classification using the hypothetical volume in the KS C IEC code.

• Proceedings of the KSR Conference
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• 2004.10a
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• pp.1185-1192
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• 2004

Recently heavy traffic is getting worse because increasing population of transportation in urban area. In order to solve this problem. subway is realized with high speed, high density, highly efficiency. When fire accident happened in Dae-Gu subway in February 2003, there happened loss of people and lots of damage because of not being able to control even though fire alarm which was set up in the station rang. This thesis has constructed a simulation integrating operation system using a Database construction, operating program analysis in order to build up the most efficient train operation system. The result of simulation integrating operation system with emergency virtual situation like station and train fire, train failure, power line failure, all trains running on the rail were secured safety by train operation control system. With integrating operation of each train control system, train system, power system, machine facility system, the most efficient integrating operation system should have been constructed at the time the subway fire and power failure broke out.

• Proceedings of the KSR Conference
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• 2004.10a
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• pp.308-327
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• 2004

As use of tunnels and subways increase there also are accidents proportionate to it. Daegu Subway Station fire, Hongjimoon tunnel fire led people to be conscious of disaster protection and as a result, there is a trend to adopt standards for fire protection. Accordingly, this thesis is focused on investigating various fire and water protection related issues for subaqueous tunnel under Ran river. The thesis developed evacuation and disaster prevention plan as fire level increases and have identified the suitability of disaster prevention through evacuation and fire simulation, countermeasure of a water leakage during construction and operation considering the subaqueous tunnel. And we selected EPB shield TBM equipment considering the ground condition and effect of boring hole, and accomplished reasonable water protection design through setting goals using event-tree method, as well as examining model test of boring hole and flooding in heavy rain. Also included structured total system consist of water leakage sensing system, water protection gate, pumping system and fire protection system to respond systematically in emergency.

• Journal of the Korean Institute of Illuminating and Electrical Installation Engineers
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• v.20 no.3
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• pp.69-77
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• 2006

This paper presents the service restoration in electric power distribution systems. The aim of the service restoration is to control an emergency taken place in distribution systems and to restore out-of service areas as soon as possible when a fault occurs in distribution systems. For this reason, new service restoration strategies in multi-outage area are suggested in this paper. The suggested algorithm consist of two schemes. One is an individual restoration scheme, the other is an integrated restoration scheme. The former determines a restoration order of outage areas based on a restoration index. Unless the former scheme can generate a feasible restoration plan, the latter one will try to find out a new configuration without an overloaded section through tie exchange method.

• Korean Institute of Interior Design Journal
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• v.26 no.6
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• pp.172-179
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• 2017

The regional trauma center should be a trauma treatment center equipped with facilities, equipments, and manpower capable of providing optimal treatment from emergency surgery to a severely traumatized patient upon arrival at the hospital. In order to establish a medical system for effective severe diseases, it is necessary to prepare architectural planning guidelines for the regional trauma centers. This study analyzes the connectivity, control, integration, and mean depth of current trauma centers using the convex map of space syntax, And to provide basic data for building for more efficient regional trauma center. The major areas that must be included in the regional trauma center are trauma resuscitation room, trauma operating room, trauma intensive care unit, and trauma general ward. It is necessary to carry out the architectural planning to increase the interconnection of the four areas. Also, the elevator plan for trauma patients should be emphasized. In addition, a regional trauma center should be separated from the existing facility for independent operation. According to the case analysis of the space configuration of the regional trauma center, the location of the operating room is most important considering the connection with each department of the hospital and the treatment flow of the severe trauma patients.

• Journal of the Ergonomics Society of Korea
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• v.30 no.1
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• pp.29-39
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• 2011

Safety management paradigm which against human errors in aviation industry is now changing from the follow-up measures after accident in the past to systematic approach that a forecast the hazards and improve the working system of the group to prevent accidents. As human factors are based on the man's specific psychological traits, it takes much time and efforts to prepare the preventive measures. That's why aviation industry is interested in the accident-prevent measurements against human errors. In this thesis, therefore, we are going to introduce the efforts that aviation organizations have tried and recommend management systems and discuss the suggestive facts. At first, we discussed introduction of HFACS which is the systematic accidents-classification system related to human errors in the aviation organization and countermeasure in the aspects of management, technology/engineering, education training. We described about FOQA, LOSA, CRM/TEM, aviation safety information DB in the aspect of management, and explained safety technologies that prevent human errors or avoid technologically when emergency occurs in the aspect of technology/engineering. In the aspect of education training, we explained the application plan about safety programs(LOFT/Simulator use, CRM/TEM application etc).

• Proceedings of the Korea Water Resources Association Conference
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• 2010.05a
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• pp.669-673
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• 2010

현재 EAP(Emergency Action Plan) 수립 시 가장 많이 사용되는 DAMBRK 모형은 붕괴유출수문곡선 유도 시 댐 재료 특성을 고려하지 않지만, BREACH 모형은 댐 축조재료 특성과 유사이송능력을 고려하여 붕괴유출수문곡선을 산정하기 때문에 물리적으로 BREACH 모형이 흙댐의 붕괴특성을 실제와 더욱 유사하게 추적할 수 있을 것으로 판단된다. 본 연구에서는 두 모형을 안동댐(흙댐)에 적용하여 첨두유출량, 첨두유출 발생시간, 붕괴 시작, 붕괴 완료 시간 등의 댐 붕괴시 유출특성을 비교하였다. 적용 결과 BREACH 모형은 붕괴가 매우 서서히 진행되다가 일정수위에 도달하게 되면 급격하게 붕괴유출량의 증가폭이 커지는 데 비하여 DAMBRK 모형은 붕괴 시작과 동시에 붕괴유출량이 급격하게 증가하는 경향을 보였다. 또한 최대총유출량은 BREACH 모형이 DAMBRK 모형에 비해 약 5% 작게 산정되었지만, 34시간까지의 유출 총량은 DAMBRK 모형에 비하여 BREACH 모형이 약 16% 크게 나타났다. 두 모형의 붕괴유출수문곡선 비교를 통하여 댐 제체의 재료특성이 유출특성에 미치는 영향을 파악할 수 있었지만, 더 정확한 영향성을 파악하기 위하여 지속적인 비교연구가 필요할 것으로 판단된다.

• KIEAE Journal
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• v.2 no.1
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• pp.3-10
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• 2002

The purpose of this study is make a proposal for application skill of Ecological communal. Ecological communal is Environmentally friendly lifestyle and an alternative plan of Environmental pollution. There is growing international scientific consensus that human activities are having a discernible effect on the global climate. The environment was polluted the cause by The Development of scientific technique and economy. Recently, Environmental pollution spreads through over the world over. Moreover, An increasing gulf between the rich and the poor. In result, rise to the emergency in cooperation with the whole world. We need to advance a new direction for society to take in order to suffer environmental problems which have emerged as the most serious. The development of ecological communal is directed toward realizing a sustainable society. If life styles are to become less dependent on ecological resources and reduce externalities, same as Ecological communal, then a wide range of renewable energy technologies and energy saving measures are required. Up to now, the development of ecological communal has been actively initiated and still continues by some venture farmers whit a vision and strong will. These study results are definitely very conducive to spread ecological communal knowledge among the public.

• Journal of the Korean Institute of Gas
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• v.17 no.4
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• pp.26-32
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• 2013

The best way to prevent major occupational accidents is prohibiting use of hazardous substances such as flammable gas, toxic gas whereas using alternative substances that ensured safety. but if there are no economic efficiency and substituting technologies of alternative substances, the best way is preparing to prevent accidents thoroughly. Therefore, this study has developed and selected release scenarios to use and apply for consequence analysis and emergency action plan for HF charging process of chemical plants that have HF release accidents and high probability of release accidents.

• Proceedings of the Korean Institute of Interior Design Conference
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• 2005.10a
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• pp.187-190
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• 2005

The purpose of this study was to investigate using behavior and spatial composition of activity room in skilled nursing facilities for the elderly and to provide basic information about its space planning. The design guidelines for activity room were as follows. First, the plan of activity room is based on the use of once to twice per week and for 30 minutes per use, and is mainly for the human knowledge and art programs. Second, all cases of the same and different floor of the individual room could be considered as its location. Third, the area is recommended at least more than 6 square meters per person including participating elderly, staff, furniture, equipments and restroom. Fourth, the furniture of activity room include the shelves, table for at least 8 persons with enough knee space, wheel, and stack chairs. Toilets and water closet should be arranged for the emergency, and the windows to the hall and curtain door need to be avoided for soundproofs and easy accessibility of wheelchair users.