• Title/Summary/Keyword: design fire

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

  • Hyukjin Kwon;Myeongcheol Kang;Suil Lim;Han wook Kim;Jungki Hong;Ho Lee;Yongson Hwang
    • Journal of Drive and Control
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    • v.20 no.1
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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.

A Study on the Arson Fire Char-acteristics based on Computer Simulation (컴퓨터 시뮬레이션에 의한 방화화재 특성에 관한 연구)

  • Choi, Jin
    • Proceedings of the Safety Management and Science Conference
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    • 2007.11a
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    • pp.239-253
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    • 2007
  • With the development of the Korean economy, the number of arson fire has been radically increased and become a huge problem and issue in Korea Society for last several decades. This study is to establish the fire life safety strategy regarding the arson fire through performing the computer simulation based on fire scenarios with researching domestic fire statistics and cutting edge techniques and methods for fire characteristics and fire dynamic. In addition, to design the fire life safety strategy depending on the arson fire pattern, the flow and characteristics of fire flames and smoke is analyzed by the computer modeling.

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How to Reduce Fire Fatalities in Residential Occupancies on the Way to a Rapidly Aging Society?

  • Sekizawa, Ai
    • Proceedings of the Korea Institute of Fire Science and Engineering Conference
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    • 2006.04a
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    • pp.29-40
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    • 2006
  • Everybody may be vulnerable to fires depending on the time, place, and circumstances. Fire statistics show that the occurrence of fire death depends not only on the severity of a fire itself, but also largely on the conditions of occupants such as physical functions, the environment around occupants, and the type of facility where are fire occurs. The review of fire safety from the viewpoint of vulnerable populations does not simply mean additional special attention and care only to high risk groups, but instead it means significant review of fire safety design and systems for all people from a more universal standpoint. Therefore, in order to examine the strategies of a fire death-reduction program, safety measures suitable for the relevant high-risk groups considering the type of vulnerable person, the type of fire, and the type of building in residential occupancies. Solutions will require strenuous multilateral effort and flexibility.

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An Improvement of Fire Safety Code for Rack-Type Warehouse in Korea (국내 랙크식 창고의 방화관련 규정 개선에 관한 연구)

  • Kim, Woon-Hyung;Lee, Young-Jae
    • Fire Science and Engineering
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    • v.28 no.6
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    • pp.69-75
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    • 2014
  • Recently Amore pacific rack-type warehouse fire broke out and argue an urgent improvement of fire protection design code including automatic sprinkler and detection design. Various type of commodities have their unique fire characteristics from fire spread rate and heat lease rate and fire hazard depends on storage height, rack arrangement, aisle width, fire load etc. With increasing ceiling height for more storage space prevent effective water spray of sprinkler head, also delays detection time causes failure of early suppression. To achieve fire protection code performance of this occupancy, Major code articles relating to a classification of commodity, sprinkler system installation, detection and fire fighting are reviewed and suggested based on fire case analysis, code review between country and field survey.

DB Construction of Activation Temperature and Response Time Index for Domestic Fixed-temperature Heat Detectors in Ceiling Jet Flow (천장제트기류에 대한 국내 정온식 열감지기의 작동온도 및 반응시간지수(RTI)에 관한 DB 구축)

  • Yoon, Ga-Yeong;Han, Ho-Sik;Mun, Sun-Yeo;Park, Chung-Hwa;Hwang, Cheol-Hong
    • Fire Science and Engineering
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    • v.34 no.3
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    • pp.35-42
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    • 2020
  • The accurate prediction of fire detector activation time is required to ensure the reliability of fire modeling during the safety assessment of performance-based fire safety design. The main objective of this study is to determine the activation temperature and the response time index (RTI) of a fixed heat detector, which are the main input factors of a fixed-temperature heat detector applied to the fire dynamics simulator (FDS), a typical fire model. Therefore, a fire detector evaluator, which is a fire detector experimental apparatus, was applied, and 10 types of domestic fixed-temperature heat detectors were selected through a product recognition survey. It was found that there were significant differences in the activation temperature and RTI among the detectors. Additionally, the detector activation time of the FDS with the measured DB can be predicted more accurately. Finally, the DB of the activation temperature and RTI of the fixed-temperature heat detectors with reliability was provided.

Countermeasure against Fire Disaster in Regional Heritage Villages on the Concept of ICT-Based Disaster Prevention Design

  • Park, Sun-Gyu;Mishima, Nobuo;Noh, Hwang-Woo;Yoo, Jae-Soo;Oh, Sang-Hoon;Min, Byung-Won;Oh, Yong-Sun
    • International Journal of Contents
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    • v.11 no.1
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    • pp.62-68
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    • 2015
  • Many severe earthquakes have occurred along the main fault lines in the world. In recent years, there has been a high incidence of small- and large-scale earthquakes in our country. These occurrences of earthquakes have become increasingly serious, owing to a degrading earth environment. An earthquake, in general, causes far more serious damages like disruptions in electricity or gas facilities, and fire disasters from its annexed effects than by its vibrations or the shock itself. In this paper, we present a countermeasure and its necessity in safeguarding against fire disasters in regional heritage villages such as "Asan Oeam," "Jeonju Hanok," and "Andong Hahoe." A more systematic and effective strategy for prevention systems against severe fire disasters is proposed after performing various related investigations and analyses of existing domestic and international systems. We investigated the existing fire security systems and their historical records with the tendency of earthquake occurrences in these three folk villages. In this proposal, we present a strategic approach for safeguarding against fire damages in our regional heritage villages derived from ICT (information communication technology)-based DPD (disaster prevention design), after examining the laws and regulations of fire-prevention strategies in Japan, America, and Europe.

The Seismic Design of Water Extinguishing Piping Systems for Equivalent Static Analysis Method (등가정적해석법에 의한 수계 파이프 시스템의 내진설계)

  • Lee, Dong-Myung
    • Fire Science and Engineering
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    • v.26 no.3
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    • pp.100-105
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    • 2012
  • In this study, seismic design in pipeline of pressurized water supply system of water extinguishing system has been carried out. This study described a generation of artificial earthquake wave compatible with seismic design spectrum, and also determined equivalent static loads to analyzed the response spectra acceleration by the simulated earthquake motion. This study constructed powerful engineering base for seismic design, and presented equivalent static analysis method for seismic design of water and gas extinguishing piping system. Also, this study readied basis that can apply seismic design and performance estimation of fire fighting system as well as pipeline of water extinguishing system from result of this research. Hereafter, if additional research by earthquake magnitude and ground kind is approached, reliance elevation, safety raising and performance based design of fire fighting system see to achieve.

A Study on Improvement of Evacuation Safety Evaluation for Performance Based Design in Underground Parking Lot (지하주차장 성능위주설계의 피난안전성 평가 개선에 관한 연구)

  • Song, Young-Joo;Kong, II-Chean;Kim, Hak-Jung
    • Fire Science and Engineering
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    • v.33 no.2
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    • pp.85-97
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    • 2019
  • Today, building constructions are becoming larger, higher, deeper, and complex to improve quality of human life and meet various needs. As a result, new design space for non - typically standardized space has been created, and targets for performance-based design are also becoming increased. An evacuation safety evaluation of performance-based design should be compared with ASET and RSET estimation so that the value of RSET does not exceed the value of ASET. However, there is a problem that it is difficult to secure the safety with using the performance-based design evaluation method currently in use, especially in case of the underground parking lot, because it has wide compartment area and various routes for evacuation. Therefore, in order to overcome these problems, this paper first investigates the simulation setting method of the performance-based design that is currently in use, and then conducts two fire simulations and three evacuation simulations for underground parking lots each time, so performs the evacuation safety evaluationin total six cases of situations. Here this paper analyzes the problem with comparative evaluation research and suggests the better solution for improved evacuation safety evaluation of performance-based design.

Consideration about the Fire Lane Plan and the Conformability - A Case Study on Daegu Metropolitan City Buk-gu - (소방차전용출동경로의 계획기법 및 적합성 검토에 관한 연구 - 대구광역시 북구를 대상으로 -)

  • Jeong, Gun-Sik;Kim, Han -Su
    • Journal of the Korean Society of Hazard Mitigation
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    • v.10 no.5
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    • pp.83-90
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    • 2010
  • The purpose of this study is to establish the standard of fire lane design to improve the performance of disaster prevention in local area. To accomplish it, we have focused on three research methods as below: first, we have expected disaster occurrence based on emergency tendency in local area; second, we have verified fire lane routes design through fire lane modeling and network analysis; third, we have quantitatively examined a possibility of danger of fire lanes through current road network modeling and analysis. The result of this study could be helpful to effective fire lane designs and quantitative analyses.