• Title/Summary/Keyword: Truck Fire

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고속도로 주행 중 제동장치 리턴스프링 결함으로 발생한 트럭화재의 분석 (Analysis of the Truck Fire Caused by Return Spring Defect of a Braking System during Expressway Driving)

  • 김윤회;이의평
    • 한국자동차공학회논문집
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    • 제22권2호
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    • pp.148-155
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    • 2014
  • Most truck fires breaking out on the expressway are directly damaged by fire destruction of truck and freight and many of them cause indirect damage such as serious traffic holdups. This study analyzed the fire causes and their liability of the 25-ton truck fire breaking out during expressway driving. This truck fire was caused by manufacturing defect of return spring of a braking system. The fire liability rested with a maker(manufacturer) rather than a truck owner or a driver and the maker also bore fire liability based on the Product Liability Law.

실시간 화재진압을 위한 원격조종 무인소방 시스템 (Tele-operation System of Unmaned Fire Truck for Real-time Fire Suppression)

  • 강병훈;이성철
    • 한국인터넷방송통신학회논문지
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    • 제22권6호
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    • pp.1-6
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    • 2022
  • 본 연구는 실시간으로 원격제어가 가능한 무인소방 시스템을 제안한다. 안전지대에 위치한 조종자가 화재현장에 투입된 무인 소방대차를 무선통신으로 원격조종함으로서 재난 및 긴급 상황에 신속하고 안전한 방재 작업을 진행할 수 있다. 이를 위하여, 소화전에 연결되어 고압으로 살수 작업이 가능한 무인 소방트럭에 대하여 제안하고, 이를 시제품으로 개발 하였다. 또한 LTE통신 상황에서 서로 다른 영상형식에 따른 시간지연과 FPS를 정량화하여, 효과적인 실시간 원격 조종 시스템에 대하여 제안하였다. 제안된 시스템의 검증을 위하여, 안전지대의 조종자와 무인소방대차를 3km 떨어진 곳에 위치시키고 주행테스트를 진행하였다. 무인소방대차를 LTE통신을 통하여 접속하고, 영상과 모션을 조종자에게 전달하여 평균 120msec의 시간지연으로 주행 테스트한 실험 결과를 제시한다.

경유와 메탄올의 유출표면에 따른 화재특성에 관한 실험적 고찰 (An Experimental Investigation on Fire Characteristics of Light Oil & Methanol for Spilled Surface)

  • 이정윤;정기창;김홍
    • 한국안전학회지
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    • 제25권6호
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    • pp.103-108
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    • 2010
  • In this study, tank truck incidents of road transport of hazardous materials to experimental investigated the potential fire hazard. Real scale fire was to perform experiments for on this qualitative and quantitative data collection and analysis. Particularly affected by radiant heat from the flames caused and damage estimates range investigated accordingly. Flame temperature, internal temperature of tank and emitted radiation from the flames was investigated. The flame of light oil spill caused a fire at a temperature of about $300^{\circ}C$ high in comparison with the methanol by combustion of diesel and methanol, according to the difference, the flame duration changes varies depending on the Burning rate, amount of radiant heat flux from light oil fire was 4 times increases compared with fire of methanol. Depending on spill locations(kinds of road surfaces, absorbing rate) and the longer the duration of the flame important factors for the internal temperature of tank truck rise was found. Dirt roads than paved road accident in a fire caused by leakage of hazardous was could the higher the damaged. Therefor, Fire suppression activities should be required in particular to be around.

긴급차량 출동 지원 시스템 구축 방안 (A Study on Construction of an emergency vehicledispatchsupport system)

  • 이정일;석종수
    • 대한안전경영과학회지
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    • 제15권2호
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    • pp.95-101
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    • 2013
  • Systems (RES) UTIS the roadside, and when the fire truck, fire engine installed in the terminal (OBE) to detect the location of the fire truck when the control signal at the intersection of quickly dispatch emergency vehicles quickly and safely through the intersection to beare. You should establish the effect of the system by the conjunction with UTIS system, emergency vehicles can be dispatched quickly to shorten the processing time of disaster, accidents incidents and protect the lives and property of the citizens.

도로터널 화재안전기준 기반 항만 지역 도로터널 화재 안전성 분석 (Evaluation of Fire Safety for Road Tunnels in Port Area based on Fire Safety Guidelines)

  • 하예진;전준호
    • 융복합기술연구소 논문집
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    • 제11권1호
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    • pp.25-28
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    • 2021
  • Recently, the fire safety of road tunnels has been important issues in South Korea. However, proper fire safety regulations has not made for road tunnels. Due to geographical challenges in South Korea, road tunnels should be constructed to secure stable traffic flows. In the Guidelines for Installing and Managing Disaster Prevention Facilities of Road Tunnels (NFSC 603), main target vehicles are passenger cars. This guidelines cannot support big fires from larger vehicles such as cargo, oil trucks. In this study, fire safety for a road tunnel in port area was analyzed with fire dynamics theory under cargo truck fire scenario. Sujunsan road tunnel in Busan city was chosen as a target tunnel, which links between Busan port and highways to increase cargo shipping. The results show the limitations of present guidelines (NFSC 603) for road tunnel from large fire situations.

상수관망 수리해석을 통한 폭염 저감 시설로써의 소화전 활용방안연구 (A study on the use of fire hydrants as a heat wave reduction facility through hydraulic analysis of water supply network)

  • 홍성진;최두용;유도근
    • 한국수자원학회논문집
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    • 제54권12호
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    • pp.1215-1222
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    • 2021
  • 본 연구에서는 상수관망 수리해석을 통한 폭염 저감 시설로써의 소화전 활용방안연구를 수행하였다. 소화전 설치 지점을 폭염저감을 위해 개방한다고 가정하고, 지점별 수압에 따른 살수반경을 도출하고 전체 대상구역의 살수면적에 따른 도심지 온도의 저감비율을 살수차운영에 따른 살수면적과 비교하였다. 소화전 개방에 따른 살수면적은, 상수관망 수리해석을 통해 소화전이 설치된 절점에서의 압력값을 도출한후, 압력값에 따른 살수반경 관계식을 통해 산정하였다. 제안된 방법론을 2개의 지역에 적용한 결과, 소화전에 의한 살수방법의 온도저감 효과는 절대적인 살수면적의 차이에 따라, 살수차에 의한 살수방법 대비 낮게 도출될 수 있다는 한계점을 보였다. 그러나, 소화전은 살수차와 달리 물공급양에 대한 상대적 제한이 없고 동일한 지역에 대한 지속적인 분할살수가 가능하므로 일정 구역의 살수면적이 확보될 경우 살수차 대비 상대적으로 효과성 있는 폭염저감 효과를 도출할 수 있을것으로 기대된다.

항공기 구조용 소방차 탱크룸의 구조 안정성 평가 및 설계 개선에 대한 해석적 연구 (An Analytical Study on Structural Stability Evaluation and Design Improvement of Fire Truck Water Tank for Aircraft Rescue)

  • 권혁진;강명철;임수일;김한욱;홍정기;이호;황영선
    • 드라이브 ㆍ 컨트롤
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    • 제20권1호
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    • pp.1-7
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    • 2023
  • In this study, the structural stability of the tank room of an aircraft rescue fire engine is to be studied. The tank room of the aircraft rescue fire engine is filled with fire extinguishing water and chemicals. Fire extinguishing water and chemical are filled to a capacity of about 12.5 tons and are subjected to high stress. The tank room is made of PP material with low yield stress. Structural analysis of the tank room is performed and structural weakness is analyzed. In addition, if a structural problem occurs as a result of structural analysis, an analysis simulation result is presented to derive an improved design and to show the validity of the structural stability of the tank room.

소방 고가사다리차의 설계 변수에 따른 안정성 평가를 위한 구조해석 연구 (A Study on Structural Analysis for Stability Evaluation According to Design Parameters of a Fire Ladder Vehicle)

  • 정훈;김철중;김홍건
    • 한국기계가공학회지
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    • 제19권8호
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    • pp.64-72
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    • 2020
  • In this study, a stability analysis was conducted through finite element analysis (FEA) of a simplified model of a fire ladder truck by changing the ascending angle, turning angle, and boundary conditions between the outrigger and the ground. The results of the analysis showed that decreasing the angle of the ladder car increases the moment due to the ladder weight, decreasing the safety factor despite being under the same load conditions. In the case of a rotating radius, the stability was found to vary depending on the boundary conditions. A comparative analysis in the future with these results and the experimental values from the actual fire ladder truck may determine the most appropriate boundary conditions based on the analysis program. It is expected to predict the risk of damage and rollover by assessing the stability of aerial ladder vehicles under different conditions.

시동불능 자동차에서 발생한 화재의 원인 분석 연구 (A Study on Cause Analysis of a Fire that Broke Out on a No-start Motor Vehicle)

  • 이의평
    • 한국자동차공학회논문집
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    • 제20권6호
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    • pp.92-99
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    • 2012
  • It is often thought that because no-start motor vehicles cannot start an engine, a fire cannot occur for motor vehicle causes. However, although the engine cannot start up, some parts may be live with electricity if a battery is connected. If the parts have problems, a fire can occur. This study analyzed the causes of fires occurring when a motor vehicle was loaded onto a tow truck to service no-start. It is suggested that no-start motor vehicles should separate a battery terminal to prevent a fire. And this fire is related to automotive products liability.

스타트모터 B단자 절연파괴 화재사례에 대한 실험적 연구 (A experimental Study on Insulation Breaking Fire Case of Starter Motor B Terminal)

  • 우승우;박정만;현병수;남정우;박우식;김진표;조영진;고재모;박남규
    • 한국안전학회지
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    • 제34권5호
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    • pp.55-62
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    • 2019
  • In this paper, we introduce a case of a fire accident during parking of a large truck that is repeatedly occurring. The shape and location of the combustion and electrical singularity commonly found in other vehicle fire accidents could limit the starter motor as the ignition section. In addition, it was possible to confirm the electrical melting singularity that could act as a cause of ignition between the start motor B terminal and the start motor enclosure. By combining the above investigations and investigations, it was possible to estimate the electric fire expressed from insulation breaking of the starter motor B terminal, and by using the renewable starter motor comparison product mounted on the fire vehicle, an experiment was performed to reproduce the ignition process from the starter motor under specific conditions. So. It is hoped that this will raise awareness about vehicle fires, which can lead to large fires or casualties, share the risks of using starter motors for regeneration, and help in the rapid and accurate investigation of similar vehicle fires in the future.