• Title/Summary/Keyword: fire environment

Search Result 1,064, Processing Time 0.028 seconds

A Basic Study on the Fire Experiment of a Single Area for Fire Safety Design. (단일구획실험을 통한 화재안전설계에 관한 기초적 연구)

  • Kim, Dong;Yoon, Ung-Gi;Seo, Dong Goo;Kwon, Young Jin
    • Proceedings of the Korean Institute of Building Construction Conference
    • /
    • 2013.11a
    • /
    • pp.110-111
    • /
    • 2013
  • This research studies in the field of domestic fires are an issue in many scientific fire research as a research method to validate the domestic environment and ISO-9705 housing on the basis of experiments in virtual space by making a single fire compartment space for conducting experiments and Appearance of a fire occurring within each flammable Heat Release Rate analysis was carried out mainly. Placed within the space of one flammable HRR calculated as the sum of the number of single-room fire experiments conducted and the results compared with the value in comparing the conduct of fire locations and fire load within the building area of the future, the HRR value represents the change in domestic a consideration of the safety of the building is to propose matters.

  • PDF

Public Safety & Security Unmanned Aerial Vehicle Heat resistance Environmental Test used in case of Building Fire (건축물 화재발생시 사용되는 재난치안용 무인기의 내열성 환경시험)

  • Kim, Da-Kyung;Bang, Hong-Soon;Kim, Ok-Kyue
    • Proceedings of the Korean Institute of Building Construction Conference
    • /
    • 2020.06a
    • /
    • pp.119-120
    • /
    • 2020
  • Recently, a building fire has occurred due to various influences. Accordingly, we are developing an public safety & security unmanned aerial vehicle for fire prevention and initial response to fire. The public safety & security unmanned aerial vehicle is used to grasp the traffic route to enter the fire engine in the event of a fire in a dense structure and to determine the scale of the fire and the area of danger of collapse around the fire site. In this study, an environmental test of the public safety & security unmanned aerial vehicle's heat resistance was performed in an environment simulating a fire scene.

  • PDF

A Study on Efficient Improvement Ways of Fire Protection Management System (방화관리제도의 효율적 개선방안에 관한 연구)

  • Kook, Hyeong-Ho;Jo, Dae-Ho;Kong, Ha-Sung
    • Fire Science and Engineering
    • /
    • v.22 no.1
    • /
    • pp.115-127
    • /
    • 2008
  • Fire protection management system has been introduced to prevent structure fire since establishment of Fire Prevention Act. Nevertheless, Damage by fires is continue. The main purpose of this study is to discuss approaches to improve fire protection management system into the fire prevention properties. Now fire protection management system has lots of the problems in managerial and systematical aspects. To improve these a unified fire protection management system must be establish by suggests revision of a unified Fire Prevention Act and foundation of Fire Prevention Institution, reform educational system for the fire safety directors would be essential to includes environment improvement, enhancement of certification requirements and education, a standardized computational management system of the fire protection properties must be build for efficient fire protection operations.

A Study on the Modeling of Vertical Spread Fire of Exterior Panel by Fire Dynamic Simulation (FDS) (FDS를 이용한 외장재의 수직 확산 화재의 모델링에 관한 연구)

  • Min, Seh-Hong;Yoon, Jung-En
    • Journal of the Korea Safety Management & Science
    • /
    • v.11 no.2
    • /
    • pp.77-85
    • /
    • 2009
  • Considering heat insulation and beautiful sight of construction, making use of exterior panels is increasing. Recently the exterior panels now are weak very much, and so in consequence of the weakness fire spreads rapidly. Compared with internal fire, external vertical fire spread rate goes rapidly and it is extensive in spread range, therefore it is dangerous very much. Accordingly, under present condition of poor standard of exterior panels, it is required to take measure to meet the appropriate situation. In this study, by making use of FDS(Fire Dynamic Simulation) program about external vertical fire of high rise building, fire behavior is searched by computer. It is important that realizing by computer fire modeling about external vertical fire must be included certainly in procedure of fire performance design in the future. In modeling program, FDS version 5 is available, and aluminium composite panel is applied in external panels. In this study, for realizing of actual fire condition, FDS is applied by details of fire scenarios considering influence of wind.

Effectiveness of critical velocity method for evacuation environment in a railroad tunnel at fire situation (철도터널 내 화재 시 대피환경 확보를 위한 임계속도 산정식의 유효성 평가)

  • Lee, Seung-Chul;Lee, Jae-Heon;Lee, Seung-Ho
    • Journal of Korean Tunnelling and Underground Space Association
    • /
    • v.6 no.1
    • /
    • pp.51-59
    • /
    • 2004
  • The effectiveness of one dimensional critical velocity method for evacuation environment at 10MW fire size in a railroad tunnel have been investigated in this paper by three dimensional CFD method. It was performed to evaluate the evacuation environment in terms of temperature distribution, visible distance distribution and CO concentration at some tunnel inlet velocity, 1m/s, 2m/s (near critical velocity), and 3m/s. At all inlet velocity, passenger should give away downward the flow direction because the inlet velocity can not afford to sufficient evacuation environment for passengers. In case of 3m/s inlet velocity, however, the evacuation environment for passengers is better than the other cases. To provide more safe evacuation environment on fire situation, tunnel inlet velocity should be larger than critical velocity.

  • PDF

A Fire Computer Simulation of Inner Space with Fire Shutters and Refuge Stairs (방화셔터와 피난계단이 존재하는 실내 환경의 화재 컴퓨터 시뮬레이션)

  • Yoo, Doo-Yul;Yang, Jung-Min
    • The Journal of the Korea institute of electronic communication sciences
    • /
    • v.8 no.11
    • /
    • pp.1617-1624
    • /
    • 2013
  • This paper analyzes the relation between fire shutters and fire spread by conducting fire simulation on inner space with fire shutters. Using Fire Dynamics Simulator (FDS), a commercial fire simulation software, the simulation is done on an ideal inner robby, where fire size and the open/close of fire shutters are varied. Our simulation environment can derive significant fire parameters such as temperature variation of fire room walls and entrances of refuge stairs, variation of carbon dioxide, and soot spread. According to the simulation results, temperature and carbon dioxide distribution in refuge stairs have little dependence on vent open or close, but the part close of fire shutters blocks soot inflow to refuge stairs.

Analyses of the Outbreaking Fires according to the Industrialization in Korea (산업화에 따른 한국의 화재발생 추이 분석)

  • Kim, H.B.;Lee, J.I.;Keon, H.S.;Choi, D.M.
    • Journal of Korean Institute of Fire Investigation
    • /
    • v.11 no.1
    • /
    • pp.127-137
    • /
    • 2007
  • In our country, a number of fire outbreaking had been increased suddenly for 20 years from beginning of 1980's to 2001. That was related with the focus of economic policy, the rapid increasing of fire fighting objects, the change of life environment, and the increasement of usage of energy. Accordingly, we tried to enforce the function of feedback effect of fire prevention policies with analysing the trends of fire occurring from 1950's to 2006 and the correct statistical analysis.

  • PDF

A Development of Fire Training Simulator Based on Computational Fluid Dynamics Simulation (전산수치해석 기반 화재훈련 VR 시뮬레이터의 개발)

  • Cha, Moo-Hyun;Lee, Jai-Kyung;Park, Seong-Whan;Choi, Byung-Il
    • Korean Journal of Computational Design and Engineering
    • /
    • v.14 no.4
    • /
    • pp.271-280
    • /
    • 2009
  • An experience based training system concerning various fire situations which may result many casualties has been required to make rapid decision and improve the responsiveness. Recently, the necessity of virtual reality (VR) based training system which can replace a dangerous full-scale fire training and be easily adopted to the training or evaluation process is increasing. This study constructed tile virtual environment according to pre-defined scenarios, utilized the FDS(Fire Dynamics Simulator), three dimensional computational fire analysis program, to derive numerically simulated data on the propagation of fire. Finally, by visualizing the realistic fire and smoke behavior through virtual reality technique and implementing real-time interaction, we developed a VR-based fire training simulator. Also, in order to ensure the sense for tile real of a virtual world and reaI-time performance at the same time, we proposed appropriate data processing and space search algorithms, demonstrate d the value of proposed method through experiments.

Design and Implementation of Fire Management Components

  • Kim, K.S.;Park, J.H.;Lee, J.H.
    • Proceedings of the KSRS Conference
    • /
    • 2003.11a
    • /
    • pp.600-602
    • /
    • 2003
  • In Korea, fire is the second frequent disaster. A total of 32,966 fires were happened in 2002, and injured 2,235 people and damaged 12 million dollars. So, we developed several components related to fire in order to decrease these victims and the amount of damage and have applied those components to Daegu Fire Agency. In this paper, we describe the developing system. It consists of 5 major components: mobile fire facility management component, web service component, fire management component, fire server, and fire application. They were developed in object-oriented computing environment, ATL/COM and Visual C++. So, they have some advantages such as high reusability, full interoperability, and easy understanding.

  • PDF