• Title/Summary/Keyword: Gas accident

Search Result 628, Processing Time 0.02 seconds

A Study on Forecasting Risk of Gas Accident using Weather Data (기상 데이터를 활용한 가스사고위험 예보에 관한 연구)

  • Oh, Jeong Seok
    • Journal of the Korean Institute of Gas
    • /
    • v.22 no.5
    • /
    • pp.107-113
    • /
    • 2018
  • While accident data are used to show alertness to accidents or to review similar cases, the analysis of nature of accident data its association with surrounding environment is very insufficient. Therefore, it is very necessary to demonstrate the possibility of an accident for a particular region by developing analysis techniques with the related accident data. The purpose of this study is to develop an analysis model and implement a system that produces regional accident probability based on historical weather information data and accident and reporting data. In other words, the system is designed and developed to create models by k-NN and decision tree algorithms with optional user-environment variables based on the probability between weather and accidents about many particular region of Korea. In the future, the models developed in this study are intended to be used to analyze and calculate the risk of a more narrow area.

The Study on Evaluation of Human Body Injury by Explosion of Portable Butane Gas Range (부탄연소기 폭발로 인한 인체 상해 평가에 관한 연구)

  • Kim, Eui Soo;Shim, J.H.;Kim, J.P.;Park, N.K.
    • Journal of the Korean Society of Safety
    • /
    • v.31 no.3
    • /
    • pp.60-67
    • /
    • 2016
  • The gas leak and explosion accident is able to give a fatal injury to nearby people from the explosion center and interest in effect of the explosion on the human body is increased. Accidents by Portable Butane Gas Range of a gas explosion accident occupy the most share. As a result, the injury on the human body frequently occur. However, It is situation that are experiencing difficulties in consequence analysis of explosion accidents owing to shortage of explosion power data and lack of research on the effect of the human body by the gas explosion. This paper acquire human injury data by performing the actual explosion experiment with Portable Butane Gas Range and evaluate power by explosion and effect of explosion on the human body to perform explosion simulation with LS-DYNA program. It is intended to contribute to the exact cause of the accident investigation and the same type of accident prevention.

Consequence Analysis of Energy Facility(City Gas Pipeline) (에너지시설(도시가스배관)의 사고시 영향 평가)

  • Park Kyo-Shik;Lee Jin-Han;Jo Young-Do;Park Jin-Hee
    • Journal of the Korean Institute of Gas
    • /
    • v.7 no.1 s.18
    • /
    • pp.10-18
    • /
    • 2003
  • Consequence model has been suggested to evaluate consequence of city gas accident considering actual situation. Through event tree analysis(ETA), probable accidents were summarized and listed. Then release rate was calculated both sonic and subsonic conditions. Among city gas accidents, fire damage is the dominant one and mainly discussed; fatality, burning injury, and damage to building were estimated using the consequence model suggested. With an appropriate conditions, calculating total cost by accident was suggested.

  • PDF

A Study on Improvement in Gas Safety Management System for Decreasing Gas Accident (가스사고 감소를 위한 가스아전관리체계 개선에 관한 연구)

  • 정원익;양광모;강경식
    • Journal of the Korea Safety Management & Science
    • /
    • v.6 no.1
    • /
    • pp.1-10
    • /
    • 2004
  • Safety management was divided by the competent authorities supplier, and customer with responsibility and authority. Gas accident were caused by treatment problem on the supplier and user, on technical and use management mater, on facilities and goods, and included problem with gas safety connection system. Especially, the big accident of the inside and outside of the country occurred during recent year was newly recognized with the whole society about safety. This study is present standard application plan of each department to use planning gas technical standard and gas utilization standard of introduction model than statute for change of self-regulation management system and complicated regulation of examination center and order.

A Study on Development Plan of Domestic City Gas Safety Management (국내 도시가스 안전관리제도의 발전방안에 관한 연구)

  • 정원익;양광모;강경식
    • Proceedings of the Safety Management and Science Conference
    • /
    • 2004.05a
    • /
    • pp.5-8
    • /
    • 2004
  • Domestic city gas is supplying in an about 10 million household on present 34 city gas companies because is begun to supply regularly after two 1980 years middle. But, result that focus on city gas supply spread and stable supply for supply area and neglects about safety problem, hundreds casualties such as Ahyun explosion accident and Deagu city gas explosion accident were reached in situation that occurred large size calamity occurs it is dizzliness. In the case of advanced nation, can see that accomplish system and progress that in technology after experience major accident. Therefore, grasp problem investigating safety actual conditions for city gas institution and study about solvable plan is required this. Also, must guide reform and level elevation of a domestic company safety technology through induction and development of safety technology that is suitable in supply, domestic real condition etc. Must help in power positivity that is full text executing high-quality safety education about step High firing mechanism safety technology than present safety education.

  • PDF

Estimate Minimum Amount of Methane for Explosion in a Confined Space (밀폐공간에서 메탄 폭발사고의 최소 가스누출량 예측)

  • Jo, Young-Do
    • Journal of the Korean Institute of Gas
    • /
    • v.21 no.4
    • /
    • pp.1-5
    • /
    • 2017
  • Leaking of natural gas, which is mostly methane, in a confined living space creates flammable atmosphere and gives rise to explosion accident. The minimum amount of leaked methane for explosion is highly dependent on the degree of mixing in the confined space. This paper proposes a method for estimating minimum amount of flammable gas for explosion by using Gaussian distribution explosion model(GDEM) and experimental explosion data. The explosion pressure in the confined space can be estimated by assuming the Gaussian distribution of flammable gas along the height of an enclosure and estimating the maximum amount of gas within flammable limits, combustion of the estimated gas with constant volume and adiabatic or isothermal mixing in the confined space. The predicted minimum gas amount for an explosion is tied to explosion pressure that results in a given building damage level. The result shows that very small amount of methane leaking in the confined space may results in a serious gas explosion accident. This result could be applied not only to setting the leak criteria for developing a gas safety appliance but also to accident investigating of explosion.

Comparative Analysis on the Causes and Frequency of Recent Gas Pipelines Accidents in Major Overseas Countries (해외 주요국에서의 최근 가스배관 사고의 원인과 빈도의 비교 분석)

  • Kim, Dae-Woong;Bae, Kyung-Oh;Shin, Hyung-Seop;Kim, Woo-Sik
    • Journal of the Korean Institute of Gas
    • /
    • v.22 no.3
    • /
    • pp.53-64
    • /
    • 2018
  • Natural gas is an explosive fluid and can cause severe human/material damage when buried high-pressure pipeline is failure, and there have been reported cases of considerable human life damage to actual buried pipeline failure. In domestic cases, the length and duration of pipeline operating are short due to rapid growth. Therefore, it is a fact that the establishment of effective accident data is insufficient for the cause of the accident. In order to systematically construct an accident database, the operation history of natural gas pipeline is longer than domestic, and the cause and frequency analysis of recent natural gas pipeline related accidents occurred in overseas major countries with a long pipeline network was conducted. Then, after grasping the trend of occurrence frequency by incident cause, we tried to establish the foundation for securing the stability of the domestic high-pressure gas transport pipeline network.

GIS based Effective Methodology for GAS Accident Management (GIS를 이용한 효율적인 가스사고관리 방법에 관한 연구)

  • 김태일;김계현;전방진;곽태식
    • Spatial Information Research
    • /
    • v.12 no.1
    • /
    • pp.89-100
    • /
    • 2004
  • Nowadays, the gas utilities have been increasing constantly due to the expansion of the urban areas. Using computerized information database, the gas companies have developed a gas management system in order to maintain the current status. However, this system can only give basic functions of the maintenance and management of the gas facilities and it has no proper utilities to provide information against accidents from gas leaks. Therefore, a gas accident management system has been developed in this study. Through primary and secondary pipe searching algorithm realtime based management system was devised against gas leaks to propose proper actions. In addition, supporting decision making has been enabled providing estimated maximum amount of gas leaks. Furthermore, all the residential units could be identified thereby minimizing damages through early warning. This system can be expected to contribute to enhance the efficiency of the gas management not to mention of protecting human lives and properties of the nation.

  • PDF

A Study on the extent of damage from fire accident Caused by Unloading of LPG Bulk Lorry (LPG 벌크로리 충전중 화재사고에 따른 사고피해영향범위에 관한 연구)

  • Lee, Myoung Ho;Lee, Su-Kyung
    • Journal of the Korean Institute of Gas
    • /
    • v.19 no.2
    • /
    • pp.1-4
    • /
    • 2015
  • The study analyses secondary damage of surrounding facilities from the fire accident by Unloading of LPG Bulk Lorry. Potential risk and extent of damage from jet flame and radiation heat is estimated with PHAST-RISK v6.7 program of DNV. According to above study, supplies can predict the damage range from gas release by Unloading, and be able to respond quickly.

The development of a GIS-based gas accident management system (GIS 기반의 가스사고 관리시스템 개발에 대한 연구)

  • Kim, Kye-Hyun;Kim, Tae-Il;Park, Tae-Og
    • Journal of Korean Society for Geospatial Information Science
    • /
    • v.10 no.2 s.20
    • /
    • pp.97-105
    • /
    • 2002
  • Nowadays the gas utilities has been increasing constantly due to the expansion of the urban areas. The gas utility companies have adopted GIS technologies and been trying to computerize the management system for gas facilities to maintain up-to-dated information to forecast possible accidents and to minimize the casualties from the accidents. The major objective of this study is to develop a GIS-based gas accident management system which could facilitate early response and alternatives in the cases of the accidents. The system is able to provide the information for the pipes to be closed followed by selecting the location of the accident, and search all the relevant values connected to the location to provide all the information to minimize the casualties. In addition to that, the system can calculated the remaining amount of the gas in the pipes closed from the accident thereby providing more safer alternatives. In the future, more practical method needs to be made such as GPS-linked more integrated gas accident management system.

  • PDF