• 한국지능시스템학회논문지
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• 제18권3호
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• pp.429-436
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• 2008

오늘날 화재를 가장 먼저 감지하여 알려주는 감지기는 배선을 통해 발신기 중계기 수신기 등으로 연결 되어진다. 현재 대부분의 건물들은 기계식 시스템을 사용하고 있다. 하지만 이러한 시공방식에 따른 문제점이 발생하는데 대형건물에서 화재가 발생하면 정확히 어느 위치에서 화재가 발생했는지 통제실에서는 정확한 위치를 알 수가 없고 또한 화재의 규모가 어느 정도인지 또한 파악하기 어렵다. 이러한 문제점의 개선점으로 본 논문에서는 최근 경향에 맞는 유비쿼터스 및 지능형 네트워크의 접목으로 Zigbee 모듈을 사용하여 네트워크를 통해 보다 신속하게 화재를 감지하고 정확한 화재위치와 화재규모 등으로 기존의 시스템과 차별화된 방식을 제안한다.

• 한국안전학회지
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• 제37권4호
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• pp.101-112
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• 2022

Expanding urbanization practices result in high numbers of buildings being developed in city centers. This high building concentration leads to an increased fire risk, resulting in higher casualty rates and increased economic damages compared to fires in the past. The purpose of this study was to analyze the structural behavior of fire-damaged reinforced concrete buildings using analytical methods and to suggest methods of improving fire resistance in the event of a fire. Damage levels were measured using commercial software to apply the finite element method, ABAQUS, and MIDAS GEN to the dataset. Load-deflection curves were calculated using the effective area and moment of inertia of the fire-damaged columns provided by ABAQUS. The results of this analysis indicate that fire-damaged beams with experience greater deflection from indoor fires than they will from outdoor fires. Fires that occurred on the middle floors were more dangerous than those occurring on higher floors, and eccentrically loaded columns experienced more damage than axially loaded columns. The results indicate that these methods accurately predict structural behaviors of fire damaged concrete columns by considering fire exposure area and eccentric loading.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2021년도 가을 학술논문 발표대회
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• pp.48-49
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• 2021

The purpose of evaluating the fire risk of a building is to predict damage or loss of life and property in unspecified circumstances and to minimize expected damage. The fire risk assessment for buildings in Korea analyzes fire risk according to performance-oriented design under the Enforcement Decree of the Fire Facilities Act and the Fire Causing Index under the Enforcement Decree of the Multi-Use Business Act. Fire risk analysis is mainly conducted by using fire statistics or analyzing the results of safety inspections of buildings. In the case of fire statistics, it is necessary to analyze the fire risk in consideration of the degree of fire damage in each number of fires, as all fires received by the fire department are collected. In addition, it is necessary to devise fire safety measures for buildings by predicting the number of casualties that may occur due to fires in each building. Accordingly, this study aims to analyze the characteristics of casualties by building use using the number of fires judged to have grown.

• 웰빙융합연구
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• 제7권4호
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• pp.15-20
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• 2024

Purpose: Climate change is greatly affecting the frequency and intensity of fires around the world. The main effects of climate change on fires are rising temperatures, dry seasons and extreme droughts, changes in precipitation, increased strong winds, extended fire danger periods, and changes in natural ecosystems. Several factors due to climate change are increasing the risk of large-scale fires, such as wildfires. Research design, data and methodology: Rising temperatures caused by climate change will make forests and grasslands drier, make it easier for wildfires to occur in drier environments and spread quickly to wider areas, and the generated wildfires will release large amounts of greenhouse gases into the atmosphere, such as carbon dioxide (CO₂), and the released greenhouse gases will strengthen the global greenhouse effect, further raising the temperature. As temperatures rise, the risk of wildfires increases in drier environments, and this process is repeated, leading to a vicious cycle of intensifying climate change as more fires occur and more greenhouse gases are released. Results: In conclusion, climate change is increasing the risk of fire occurrence and this phenomenon is expected to become more frequent and severe in the future. Conclusions: In order to cope with the increasing fire risk caused by climate change, fire prevention and management. Fire detection and response systems need to be strengthened, supportive policies and international cooperation are needed to restore ecosystems, and these measures, along with fire prevention, management and countermeasures, should take into account long-term climate change and adaptation as well as short-term responses.

• 전력전자학회:학술대회논문집
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• 전력전자학회 2016년도 전력전자학술대회 논문집
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• pp.38-39
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• 2016

Most of fires are electric fires and 78.65% of those fires are caused by electric arc fault. This series arc fault can be caused not only by decrepit wire, pressed wire or contact badness etc. anywhere we use electricity. There are signs of heat release and flame discharge before the arc fire accident happens. This paper proposes a circuit topology for alarm system of series arc fault. We also verify the qualification of system through various arc fault simulator.

• 한국화재소방학회논문지
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• 제3권1호
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• pp.19-28
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• 1989

It has been recognized that the escape facility planning is very important for effective evacuation of accupants on fire event. The ultimate goal of the escape facility planning is to evacuate occupants rapidly from building fires to the safe areas. In fire event, occupants usually gather, utilize and finally act upon information about state transient of building fire system, which is consisted of components of fire, building and accupant during the ralatively short period of the fire event. That is, occupants' egress behavior is largely dependent upon building fire system. Therefore, comprehensive study for the relationship between building fire system and occupants' egress behavior is needed. This study aims to suggest the pre -occupancy evaluation method of the life safety performance for the architectural design based on prediction of occupants' egress behavior during building fires with computer simulation.

• 한국지구물리탐사학회:학술대회논문집
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• 한국지구물리탐사학회 2003년도 Proceedings of the international symposium on the fusion technology
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• pp.27-32
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• 2003

Fire accidents in tunnels and underground installations have resulted in significant loss in terms of life and costs. Several large research projects are launched in Europe to find cost effective ways to upgrade and make such installation more robust against accidents from fires and explosions. For one single tunnel, severe fire accidents are rare and operators and users will have very limit experience, when they do occur. There is a trend to solve the problem with high tech instrumentation and monitoring techniques and to rely on the fire brigade to play a major role in the rescue operation. These precautionary measures are very difficult to validate for the severe fires. For protection against the most critical fires, the safety has to be considered in the design of the tunnel and the technical installation validated so that it operates as indented.

• Nuclear Engineering and Technology
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• 제50권3호
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• pp.488-493
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• 2018

The Firebrick Resistance-Heated Energy Storage (FIRES) concept developed by the Massachusetts Institute of Technology aims to enhance profitability of the nuclear power industry in the next decades. Studies carried out at Massachusetts Institute of Technology already provide estimates of the potential revenue from FIRES system when it is applied to industrial heat supply, the likely first application. Here, we investigate the possibility of operating a power plant (PP) with a fluoride-salt-cooled high-temperature reactor and a closed Brayton cycle. This variant offers features such as enhanced nuclear safety as well as flexibility in design of the PP but also radically changes the way of operating the PP. This exploratory study provides estimates of the revenue generated by FIRES in addition to the nominal revenue of the stand-alone fluoride-salt-cooled high-temperature reactor, which are useful for defining an initial design. The electricity price data is based on the day-ahead markets of Germany/Austria and the United States (Iowa). The proposed method derives from the equation of revenue introduced in this study and involves simple computations using MatLab to compute the estimates. Results show variable economic potential depending on the host grid but stress a high profitability in both regions.

• 한국화재소방학회:학술대회논문집
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• 한국화재소방학회 1997년도 International Symposium on Fire Science and Technology
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• pp.423-438
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• 1997

Today's building and fire prevention codes are mostly prescriptive. Prescriptive codes are based on major fires in earlier years that created a need for specific building provision. These codes provide a minimum level of safety. As the general and engineering uses of computers have increased over the years, so has use of computers in the fire protection engineering. This has allowed fire protection engineers to develop alternative approaches to solve today's fire protection problems or to evaluate the performance of a specific fire safety goal. A performance based approach to building and fire codes involves the following: 1) identifying specific goals, such as, safely getting out of the building in 10 minutes, 2) obtain conceptual approval from authorities, 3) define performance level, 4) develop design solutions and identify tools such as, fire tests, models, or methods, to demonstrate that a design will meet the fire protection objective 5) test solutions, 6) present test method and results to the authorities. Some people in the fire protection community consider this to be nothing more than an intellectual exercise, while the others view it as a way to reduce expenses on large project$^4$ Others in fire protection community view this as a way to refine the design process to design fire protection systems to better protect the fire hazards. This paper will focus on application of these tools, specifically computer fire models, to actual cases such as: design of a smoke control system heat transfer analysis and egress of building occupants during potential fires.

• 터널과지하공간
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• 제33권3호
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• pp.169-188
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• 2023

터널에서의 화재는 지상 화재에 비해 온도상승과 최대온도가 더 높게 나타난다. 이러한 이유로 네덜란드, 독일 등 여러 나라에서는 터널에서 사용하는 별도의 화재 시간이력곡선을 제시하였다. 터널 내 화재는 단면손실과 그 배면의 역학적 특성저하와 같은 터널 라이닝의 손상을 발생시킨다. 본 연구에서는 구조물의 화재안정성 설계 개념과 스폴링에 의한 단면손실, 터널 라이닝 재료의 물리화학적 및 역학적 특성 변화, 구조물 안전을 위한 내화재, 그리고 화재손상 예측모델에 대해 살펴보았다. 화재에 대한 구조물의 안정성을 확보하기 위해서는 설계 단계에서 구조물의 종류와 화재원인을 파악하고 예상되는 단면손실과 손상범위를 확인하여 내화재를 통해 이러한 손상에 대비하는 작업이 요구된다. 본 연구에서는 이러한 일련의 작업을 수행하는데 참고할 수 있는 사항들을 정리하고 이에 대한 의견을 제시하였다.