• Title/Summary/Keyword: Flammable materials

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Study on the Combustion Characteristics of Flammable materials and Combustion Accelerants in an Arson (방화 범죄에서 가연성 물질과 연소촉진제의 연소 특성에 관한 연구)

  • Park, Hye-Jeong;Nam, Ki-Hun;Kim, Kwang-Il
    • Fire Science and Engineering
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    • v.31 no.5
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    • pp.7-11
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    • 2017
  • The purpose of this study is to recognize the necessity for the management of the available materials in cases of arsons and to prevent arson gaining an understanding of the combustion characteristics of the flammable materials and combustion accelerants in arson cases. We investigated and analyzed the statistical data on arsons and selected flammable materials (wood, paper, synthetic textiles, synthetic resins), and combustion accelerants (gasoline, diesel, solvent) that are frequently used in cases of arson. We conducted a thermogravimetric analysis to assess the thermal properties of the flammable materials. Also, we conducted burning and flame spread rate tests for the purpose of comparing and analyzing the combustion characteristics of the flammable materials and combustion accelerants.

The Review of Globally Harmonized System of Classification and Labelling of Chemicals (위험물질 분류 및 표지에 관한 세계조화시스템 고찰)

  • Kwon, Kyung-Ok
    • Fire Science and Engineering
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    • v.21 no.3
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    • pp.84-90
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    • 2007
  • The UN recommends to the member of OECD to implement the GHS (Globally Harmonized System of Classification and Labelling of Chemicals) that harmonized the flammable materials for classification, labelling, production, transport, storage, handling, usage and discard. There are no significant differences between UN and GHS because GHS is based on physico-chemical hazard and acute toxity of classification and labelling of UN regulation for the classification and transportation of flammable materials. In this paper it was analyzed that the classification, labelling and test method of flammable materials for GHS and the national law of safety management of flammable materials.

Consequence Analysis of flammable Materials at Risk Based Inspection using API-581 (API-581에 의한 위험기반 검사에서 가연성 물질의 사고결과 분석)

  • Lee Hern-Chang;Ryoo Jun;Kim Hwan-Joo;Jang Seo-Il;Kim Tae-Ok
    • Journal of the Korean Society of Safety
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    • v.19 no.4
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    • pp.60-68
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    • 2004
  • Consequence analysis of flammable materials that affect to a risk of facilities was studied at the risk based inspection using API-581. We found that consequence areas (damage area of equipment and fatality area) by release accident of flammable materials showed high value for the case of liquid phase and auto-ignition likely, and that consequence areas of flammable gases decreased as temperature increased and the pipe diameter and pressure decreased at continuous release.

An Experimental Study on the Fire Risk of Electric Heaters According to Contact of Flammable Materials (가연물 접촉에 따른 전기히터의 화재위험성에 관한 실험적 연구)

  • Lee, Sung-Ryong
    • Fire Science and Engineering
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    • v.25 no.3
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    • pp.63-71
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    • 2011
  • In this study, it was evaluated the fire risk of an electric heater as representative seasonal appliances. Two type of electric heaters were used in experiments. When electric heaters were operated, temperature variation was measured around the heater. Internal structure was understood by Nondestructive inspection. It was evaluated the tire risk of electric heaters, when flammable materials were positioned ear a heater. It was also estimated the probability of a tire in case of malfunction of a safety tip-over witch. When a heater was operated in a normal condition, temperature was maintained under $80^{\circ}C$ around the heater. The possibility of a fire is very high, when a heater is covered with flammable materials or malfunction of safety parts (safety tip-over switch, anti-overheating devices).

The study on the regulation of classification of flammable materials for the rail transportation in domestic and abroad (철도위험물수송을 위한 국내외 위험물분류 기준 연구)

  • Kwon, Kyung-Ok
    • Proceedings of the Korea Institute of Fire Science and Engineering Conference
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    • pp.524-535
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    • 2008
  • 위험물들은 위험물의 사용 및 관리뿐만 아니라 수송시에도 많은 위험성을 내포하고 있어 각국에서는 적당한 기준을 마련하여 특별히 관리하고 있다. 우리나라 철도 위험물안전수송에 관한 철도안전법 개정을 위하여 국내 철도 위험물의 수송량과 종류를 분석하고 국내외 위험물분류기준을 비교하였다. 우리나라는 지리적으로 대륙을 연결하기 편리한 위치에 있어 향후 국경을 넘어 대륙을 횡단하는 국제법을 채택하는 것이 유리하고, 수송되어야 할 물질의 종류가 다양해질 것을 대비하여 국제적으로 통용될 수 있는 위험물일람표를 채택하는 것을 제안하였다.

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A Case Study of the Sungnyemun Fire for Identification (숭례문 화재의 감식 사례 연구)

  • Choi, S.B.;Lee, J.J.;Lee, T.Y.;Lee, C.J.;Choi, D.M.
    • Proceedings of the Safety Management and Science Conference
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    • pp.1-6
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    • 2009
  • The fire of Sungnyemun, National Treasure of No.1, gave to the Korean people and fire investigators big pains. The aim of this study are the identification of combustion traces and fire patterns of wooden building fire, burned with an accelerator, after spraying flammable materials on the wooden floor through the field study observation. Also, in the case of the similar fire, these results will be as good references to fire investigators for accurate investigations.

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An Identification of Sungnyemun Fire as a Case Study (숭례문 화재감식 사례 연구)

  • Choi, S.B.;Lee, S.J.;Lee, S.H.;Choi, D.M.
    • Journal of Korean Institute of Fire Investigation
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    • v.11 no.1
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    • pp.74-82
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    • 2008
  • The fire of Sungnyemun, National Treasure of No.1, gave to the Korean people and fire investigators big pains. The aim of this study are the identification of combustion traces and fire patterns of wooden building fire, burned with an accelerator, after spraying flammable materials on the wooden floor through the field study observation. Also, in the case of the similar fire, these results will be as good references to fire investigators for accurate investigations.

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An Experimental Study on the Fire Risk at Welding·Cutting Process (용접·절단 작업시 화재위험성에 관한 실험적 연구)

  • Lee, Sung-Ryong
    • Fire Science and Engineering
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    • v.26 no.3
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    • pp.60-66
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    • 2012
  • In this study, it was evaluated the fire risk during welding cutting tasks. Welding-cutting machines are representatively used at construction sites. Inverter AC/DC TIG welding macnine and inverter air plasma cutting machine were used in experiments. Temperature of spreaded cinders was measured using a thermal camera. Cinder sizes and spread range were measured according to the height and input current. It was also evaluated the fire risk during welding-cutting process, when flammable materials were located around the working area. There were used hay, dust fence, urethane foam, vinyl, paper and oil as flammable materials. Temperature of spreaded cinders was reached at about $450^{\circ}C$. Cinders were spread approximately 4.7 m, when a worker carried out cutting process at 2.5 m height. The possibility of a fire is very high, when flammable materials were located around the working area.

A Study on Fireproofing Application by Fire Magnitude (화재규모에 따른 화학공장의 내화구조 적용에 대한 연구)

  • Lee, Dong Hyeok;Yoo, Byung Tae
    • Journal of the Korean Institute of Gas
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    • v.22 no.5
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    • pp.46-52
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    • 2018
  • Interest in fire prevention/fighting has been increased by large fire. It is important to install/manage the detector, alarm, firefighting facility, evacuation route and so on to minimize the damage from fire. Chemical plant is generally constructed by steel structure. So fireproofing is significantly required to chemical plant because steel structure should endure during fire. Currently, fireproofing should be applied up to 6m from ground by local regulation. But chemical plant can handle the large amount of flammable materials or only non-flammable materials. Required of fireproofing height by fire magnitude is studied in this thesis.

A Study on Explosive Limits of Flammable Materials - Prediction of Explosive Properties and Temperature Dependence of Explosive Limits for n-Alcohols - (가연성물질의 폭발한계에 관한 연구 -알코올화합물의 폭발특성치 및 폭발한계의 온도의존성 예측-)

  • 하동명
    • Journal of the Korean Society of Safety
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    • v.14 no.1
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    • pp.93-100
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    • 1999
  • By using literature data, the empirical equations have been derived which describe the interrelationships of explosion and other related properties of n-alcohols. The properties which have been correlated data are : lower and upper explosive limits, heats of combustion, carbon numbers. Also, the new equation for predicting the temperature dependence of lower explosive limits(LEL) of n-alcohols on the basis of explosive limits, heats of combustion, flame propagation theory and mathematical method is proposed. The values calculated by the proposed equations were a good agreement with literature data within a few percent. From a given explosive properties. by using the proposed equations, it is possible to predict the other properties. It is hoped eventually that this method will permit the estimation of the explosive properties of alcohol with improved accuracy and the broader application for other compounds.

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