• 제목/요약/키워드: extinguish

검색결과 133건 처리시간 0.02초

항공기 엔진베이 내 소화장치 성능예측을 위한 전산해석방법 연구 (PREDICTION OF FIRE EXTINGUISH SYSTEM PERFORMANCE BY NUMERICAL METHOD)

  • 신훈범;서석주;정주현;유진복
    • 한국전산유체공학회:학술대회논문집
    • /
    • 한국전산유체공학회 2010년 춘계학술대회논문집
    • /
    • pp.426-430
    • /
    • 2010
  • There is fire dangers inside engine bay where fuel of oil leakge can be ignited by hot engine surfaces. So, Fire suppressor is needed to extinguish the flames. The current FAA requirement is that the concentration level should be greater than 6% by volume throughtout the protected zone for longer than a half second simultaneously. To Satisfy the FAA requirement, The Fire extinguish system should quickly delivery the fire extinguish agents and Fire extinguish system should be designed effectively. This study is to develop and simulate the injection of fire extinguish agents into the engine-bay. Transient simulations were performed and predicted the concentration of fire extinguish agents at the certain locatioin in the engine-bay.

  • PDF

적외선 열 영상 카메라 기반의 스마트 화재감지 시스템 및 자동소화 장치 인터페이스 플랫폼의 설계 및 구현 (Design and Implementation of the Smart Fire Detection System and Automatic Extinguish Device Interface Platform based on Thermal Imaging Camera)

  • 장락주;이순이;강석원;이동명
    • 한국콘텐츠학회:학술대회논문집
    • /
    • 한국콘텐츠학회 2014년도 추계 종합학술대회 논문집
    • /
    • pp.7-8
    • /
    • 2014
  • 본 논문에서는 적외선 열 영상 카메라를 기반으로 한 스마트 화재 탐지 및 자동소화 시스템의 구현에 관한 것으로 스마트 화재감지 시스템 및 화재 발생 시 이를 초기에 진화 할 수 있는 자동소화 장치 인터페이스 플랫폼의 설계 및 구현에 관한 것이다. 시스템 개발의 주요 기능은 열 영상 카메라와 메가픽셀 카메라를 기반으로 하는 화재 탐지 영상 시스템 및 뷰어; 화재 발생 시 초기에 화재를 진화 할 수 있는 자동소화 장치시스템; 영상 시스템과 자동소화 장치 시스템을 연결해 주는 인터페이스 플랫폼이다.

  • PDF

소형선박용 무인기관실 초기화재 진압시스템 개발 (Developing of an extinguishing system for a fire at an early stage in Unmanned Engine Room for small vessels)

  • 김성윤;김동석;김유택
    • 한국마린엔지니어링학회:학술대회논문집
    • /
    • 한국마린엔지니어링학회 2006년도 전기학술대회논문집
    • /
    • pp.333-334
    • /
    • 2006
  • Extinguishing a fire at an early stage is most important to prevent spreading of a fire in Unmanned Engine Room. The most proper fire extinguish system was analyzed after examining the Automatic spread Extinguish System, which is mostly installed in Unmanned Engine Room, reproduced in the condition of real Unmanned Engine Room.

  • PDF

소방대의 현장접근성 강화를 위한 설비의 개선방안 (The Way for improvement of facility to strengthen accessibility of the site for fire department)

  • 오택흠;성재만;박찬석
    • 대한안전경영과학회지
    • /
    • 제14권3호
    • /
    • pp.67-75
    • /
    • 2012
  • Because recently(July 14, 2011) fire occurred in the engine room of a moving taxi under Namsan Tunnel 1, 51 vehicles' driver and more than 250 passengers in the road tunnel were urgently evacuated with abandoned vehicles. Vehicle fires in Namsan Tunnel that day, Sufferers struggled to escape quickly difficult to escape the two-way by abandoned vehicles on the road and to fear many casualties by using vehicle fuel and combustible interior and the driver who is ignorant of vehicle accident continuous entered in the road tunnel had accessibility the site of fire department was more difficult. In this study, It is to investigate structure and basic materials, such as fire extinguish equipment and facilities for damage prevention and to analyze the problems and to plan improvement method of fire extinguish equipment, facilities for damage prevention and transportation facilities(Large traffic signs, Breaker, etc.) on the Namsan Tunnel that in the long-term plan is prepared to strengthen for accessibility of the site of fire department in case of Vehicle's fire.

무선통신 단말기를 이용한 무인화재 감지시스템 (Unattended fire detection system using a wireless communication device)

  • 장락주;이순이;강석원
    • 한국콘텐츠학회:학술대회논문집
    • /
    • 한국콘텐츠학회 2015년도 춘계 종합학술대회 논문집
    • /
    • pp.25-26
    • /
    • 2015
  • 본 논문은 무선통신 단말기를 이용한 무인 화재감지 시스템의 구현에 관한 것으로 무선통신 장비가 장착된 복합화재감지기 및 자동소화 장치와 이를 네트워크로 연결한 화재감지 및 화재 초기진화 시스템, 열 영상 카메라와 영상 카메라로 구성된 카메라 시스템, 화재상황을 모니터링 할 수 있는 화재감지 모니터링 시스템의 설계에 관한 것이다. 시스템의 주요 개발 기능은 무선통신을 이용한 화재감지 장치 및 자동소화 장치 시스템; 열 영상 카메라와 영상 카메라를 기반으로 하는 화재 탐지 카메라 시스템; 영상모니터링 및 Map Viewer 기능이 있는 Monitoring Viewer 시스템 등이다.

  • PDF

성능에 기반을 둔 목조건축물 화재안전기준 개선방안 (Improvement of Performance based wooden building National Fire Safety Codes)

  • 오택흠;박찬석
    • 대한안전경영과학회지
    • /
    • 제18권2호
    • /
    • pp.83-92
    • /
    • 2016
  • Because National Fire Safety Codes is mixed performance criteria and specification, and it defines the fire extinguish equipment type and standards that need to be installed in a building as one method. Therefore, to fully reflect the fire risk characteristics of the building, such as the wooden building there is a limit. In this study, suggested to the performance criteria drawn methodologies through fire load of wooden buildings studies, theory on performance and performance analysis to fire extinguish equipment of the wooden buildings is installed according to current fire safety codes.

항공기 엔진베이 내 소화장치 성능예측을 위한 연구 (A Study on the Performance Prediction of Fire Extinguish System in Aircraft Engine Bay)

  • 박영하;김형식;김진환;조수용
    • 한국항공우주학회지
    • /
    • 제40권8호
    • /
    • pp.718-725
    • /
    • 2012
  • 항공기 엔진베이에 누유된 연료나 오일이 고온의 엔진 표면에 닿게 되면 점화되어 화재를 야기시킬 위험성이 높다. 이를 방지하기 위하여서는 소화제를 화재방지영역에 신속하게 분사하고 소화제의 농도가 높이 유지되도록 화재방지시스템을 설계하여야 한다. FAA에서는 소화제가 화재방지영역 전체에 6%의 농도를 0.5초 이상 유지하는 것으로 규정하고 있다. 이러한 요구를 만족할 수 있는 화재감지시스템의 개발을 위하여, 본 연구에서는 엔진베이에 소화제의 분사와 농도측정에 대한 수치적인 연구와 실험적인 연구를 수행하였다. 분사된 소화제의 분사시간이나 농도유지에 대하여 실험과 수치적인 연구의 결과는 유사한 경향을 보이나, 실험에서 센서의 응답성으로 인하여 소화제의 농도가 늦게 측정되었다.

$N_2$기체의 흐름에 주입된 $CO_2$기체의 확산 및 분산 (Diffusion and Disperision of Injected $CO_2$Gas Into the $N_2$Gas Flow)

  • 김유식;안대영
    • 한국화재소방학회논문지
    • /
    • 제16권3호
    • /
    • pp.1-7
    • /
    • 2002
  • Diffusion and dispersion of injected $CO_2$gas into the $N_2$ gas flow are complex. In the packed column with porous particles the axial dispersion and the extra-particle mass transport as well as the intra-particle mass transport are involved. The pulse spreads by stationary diffusion during the period of arrested flow. Hence, the effect of axial dispersion, and of entrance and exit, as well as that of intraparticle convection should be eliminated during the period. The effective diffusivity was determined experimentally by using the gas chromatography, which is to arrest the gas flow during the period after injecting the pulse. This experiment method hasn't been used often in the field. Effective diffusivities are raised with temperature increasing, and it is quite satisfied com-pared to literature values. In this study, the calculated data of gaseous chemical for extinguish fires could be helpful to appreciate several physical phenomenons. Also, it could be expected that, the calculated data of this study might be very useful for development of excellent gaseous chemical for extinguish fires and improvement of its efficiency.

초기 화재 진압을 위한 자율주행 소방 로봇 시스템 설계 (Design of an Autonomous Firefighting Robot System for Early Fire Suppression)

  • 김효민;김정용;문성준;이아현;이창수
    • 로봇학회논문지
    • /
    • 제19권3호
    • /
    • pp.287-292
    • /
    • 2024
  • The initial suppression of fires is critical to protecting human and material resources. In response to this, fire prevention and suppression systems using artificial intelligence and robot technology have recently been studied. In particular, an autonomous driving system that detects a fire using CNN is attracting attention. These systems respond quickly in the event of a fire, enabling initial fire suppression. However, since the conventional system is not equipped with a fire suppression function, direct intervention of firefighters is required. (1) To overcome these limitations, we propose an autonomous fire detection robot system equipped with a fire suppression function ROS-based firefighting system called 'ADEFS' (Autonomous-Detect & Extinguish-Fire Service). (2) The system performs three tasks to detect and extinguish. Tasks are to run the Ros-based SLAM Navigation, YOLO-CNN, and Four-degree freedom manipulator connected to the fire extinguishing pump. (3) Through this, early response in the event of a fire can minimize damage to life and property and can reduce labor costs, which can also be expected to reduce costs for companies.

소화기의 역할 고찰을 통한 활용 방안 연구 (A Study on the methodology analyzing the the role of the fire extinguisher)

  • 백명기;손은수;송재수;조원철;이태식
    • 한국방재학회:학술대회논문집
    • /
    • 한국방재학회 2007년도 정기총회 및 학술발표대회
    • /
    • pp.518-521
    • /
    • 2007
  • The paper is to show the methodology that they have a new understanding of a fire extinguisher's function and utilization through a deeper look. This new approach method will help to extinguish a accidental fire practically

  • PDF