• 제목/요약/키워드: When the fire broke out

검색결과 15건 처리시간 0.021초

DPF 클리닝 직후에 주행 중 발생한 승용차화재 사례의 분석 (Analysis of an Automotive Fire Case that a Fire Broke out during Driving Immediately after DPF Cleaning)

  • 이의평
    • 한국자동차공학회논문집
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    • 제24권5호
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    • pp.556-565
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    • 2016
  • As a result of the enforced control of emission, many devices, including the diesel particulate filter, have been installed in diesel cars to reduce the emission of particulate matters. In this study, a car fire case has been investigated and analyzed. A car fire broke out after the vehicle traveled a distance of 1.4 km from a car service center. The car was provided with DPF cleaning when the DPF warning light came on. After being dismantled in the engine room, the car's engine and gearbox were investigated. The findings showed that the rear part of the DPF metal case was melted and punctured, while the honeycomb filter of the DPF was damaged. The car fire was caused by an overheated DPF associated with inaccurate maintenance practice. Therefore, the responsibility of the fire rested on the car service center that performed the DPF cleaning.

엔진정지 중 전기적인 원인에 의해 발생한 자동차화재의 분석 연구 (A Study on Analysis on an Automotive Fire Case that Broke Out due to an Electrical Cause during Engine Stopping)

  • 이의평
    • 한국자동차공학회논문집
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    • 제21권1호
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    • pp.9-16
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    • 2013
  • Although it is widely accepted that a fire can occur due to electrical causes even when an engine stops, there is little introduction of detailed case analysis. This study analyzed a fire case caused by an electrical cause during engine stopping at parking lot in detail. Moreover, it was revealed that the fire was mainly caused by design defect.

보일러실 화재.폭발사고 경감방안에 관한 연구 (A Study on the mitigation method of explosion and fire accidents in the Boiler room)

  • 손은수;백명기;송재수;조원철;이태식
    • 한국방재학회:학술대회논문집
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    • 한국방재학회 2007년도 정기총회 및 학술발표대회
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    • pp.405-409
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    • 2007
  • This paper focused on the way of prevention of disaster in the accident of explosion when the fire broke out in the boiler room where installed the basement of the building, and showed the effective ways for sustaining people and property safely in the view of problems and improvement of the law and safety awareness of people.

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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.

비상용승강기를 이용한 피난방안에 관한 연구 (A study on the escape measures using fire fighters elevator)

  • 윤우진;신태균;홍지훈;조원철;이태식
    • 한국방재학회:학술대회논문집
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    • 한국방재학회 2007년도 정기총회 및 학술발표대회
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    • pp.640-644
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    • 2007
  • The purpose of the present research is to provide a plan for an effective evacuation of residents and people who's in need of evacuation (such as children, the handicapped, and the old) and for the situation when staircase is not available for evacuation, by means of analyzing the evacuation behavioral characteristics of the residents or the evacuators and suggesting an evacuation plan using an emergency elevator in order to minimize casualties in case when fire broke out in a skyscraper.

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제조결함이 법원에서 인정된 차량화재 사례의 분석 (Analysis of a Car Fire Case Deciding at Courts that a Fire Broke Out due to Manufacture Defect)

  • 이의평
    • 한국화재소방학회논문지
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    • 제30권3호
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    • pp.94-103
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    • 2016
  • 이 논문에서는 1년 전에 구입하여 8,500 km를 주행한 차량에서 발생한 화재사례를 분석하였다. 이 차량은 차량이 적색교통신호로 멈추었다가 파란불로 바뀌어 출발할 때 옆 차량이 경음기를 울려서 차량을 세워 확인해보니 엔진 쪽에 불이 붙어 있었다. 이 차량 화재는 배터리 + 단자에 삽입하여 나사로 조이는 고리의 전기적인 스파크로 인해 발생하였을 가능성이 높은 것으로 분석하였다. 그리고 그 고리의 전기적인 스파크는 제조결함으로 인해 발생한 것이므로 화재발생책임은 소유자나 운전자와 관련이 없이 제조자에게 있는 것으로 분석하였다. 이 차량화재의 화재발생책임과 관련하여 법원에서 제조자의 제조결함을 인정하였다.

지하철 승강장안전문 설치에 따른 열차 화재시 승객 위험성평가와 방재방안 연구 (A study for risk analysis and disater prevention of the passengers when traincar fire on PSD Installed subway)

  • 황철승;김동성;이상곤;조원철;이태식
    • 한국방재학회:학술대회논문집
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    • 한국방재학회 2007년도 정기총회 및 학술발표대회
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    • pp.555-560
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    • 2007
  • This paper focused on the ways of disater prevention and risk analysis of the passengers setting up the hypothesis when urban rapid transit broke out fire in subway tunnel which is PSD(Platform Screen Door) installed environment. compared the flud dynamic changes and evacuation specifications whether PSD being installed or not, tried to search the effective ways for sustaining passengers safety.

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Implementation of YOLOv5-based Forest Fire Smoke Monitoring Model with Increased Recognition of Unstructured Objects by Increasing Self-learning data

  • Gun-wo, Do;Minyoung, Kim;Si-woong, Jang
    • International Journal of Advanced Culture Technology
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    • 제10권4호
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    • pp.536-546
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    • 2022
  • A society will lose a lot of something in this field when the forest fire broke out. If a forest fire can be detected in advance, damage caused by the spread of forest fires can be prevented early. So, we studied how to detect forest fires using CCTV currently installed. In this paper, we present a deep learning-based model through efficient image data construction for monitoring forest fire smoke, which is unstructured data, based on the deep learning model YOLOv5. Through this study, we conducted a study to accurately detect forest fire smoke, one of the amorphous objects of various forms, in YOLOv5. In this paper, we introduce a method of self-learning by producing insufficient data on its own to increase accuracy for unstructured object recognition. The method presented in this paper constructs a dataset with a fixed labelling position for images containing objects that can be extracted from the original image, through the original image and a model that learned from it. In addition, by training the deep learning model, the performance(mAP) was improved, and the errors occurred by detecting objects other than the learning object were reduced, compared to the model in which only the original image was learned.

도시철도 화재$\cdot$단전시 최적 열차운행을 위한 통합운영체계 구축방안에 관한 연구 (A Case study on the plan for the ESC integrating optimized train operation system for Fire & power failure accident in subway)

  • 김영욱;최세완;김용규
    • 한국철도학회:학술대회논문집
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    • 한국철도학회 2004년도 추계학술대회 논문집
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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.

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