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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
> Journal Vol & Issue
Journal of the Korean Institute of Gas
Journal Basic Information
Journal DOI :
The Korean Institute of GAS
Editor in Chief :
Volume & Issues
Volume 4, Issue 4 - Dec 2000
Volume 4, Issue 3 - Sep 2000
Volume 4, Issue 2 - Jun 2000
Volume 4, Issue 1 - Mar 2000
Selecting the target year
An Analysis of Gas Accident between 1995 and 1998, and Suggestion of Accident Reduction Countermeasures.
Park Kyo-Shik ; Kim Ji-Yoon ;
Journal of the Korean Institute of Gas, volume 4, issue 3, 2000, Pages 1~8
It is required that gas accidents should be managed carefully as the consumption of fuel gas increases and high pressure gas process becomes more complex, which may cause a catastrophic accident. Factors to cause accidents were investigated through a systematic analysis of gas accidents between 1995 and 1998, which could be applied to prepare countermeasures to reduce gas accidents. As a result, it was suggested that the effective countermeasures to gas accidents should be kept applied, while new countermeasures were suggested in the field of increasing or not-decreasing number of accident. Totally 2,027 of accidents were reported during this term, and were found to decrease by about
every year from 1996. The number of fuel gas such as LPG and city gas accident took up
, and most of accidents occurred at end-user's facility such as residential house and restaurant business. According to the kind of gas and facility, trend of accident by cause varies, while dominant causes are defective installation, appliance failure, or user's carelessness. Intentional accidents by fuel gas was excluded in this study because of its occurring mechanism and will be analyzed further elsewhere, although it took up
and increased by
An Evaluation of the Fire and Explosion Effect by BTX released in a Chemical Plant
Park Ki-Chang ; Kim Byung-Jick ;
Journal of the Korean Institute of Gas, volume 4, issue 3, 2000, Pages 9~18
Accident analysis are useful in the design stage of chemical plants and their surrounding structures. Also, analysis results are required for safety management of existing plants. In this paper, the fire and explosion effect by BTX released was evaluated. The computer program was prepared for accident analysis and adopted for evaluating the magnitude of fire (pool fire) and explosion (UVCE) effect. The thermal radiation was used as a measure of fire magnitude and the overpressure as a measure of explosion magnitude. And probit analysis was made for each case. As a case study, benzene tank model was used. The simulation results of explosion of benzene showed that the damage within 20 meters from the accident spot was severe and the damage beyond 60 meters was negligible. The simulation results of fire of benzene showed that the damage in summer is bigger than that in winter. And the damage of city located inland seems to be bigger than that of city in seaside. And thermal radiation effects was negligible beyond 40 meters-distance from the accident spot.
Development of Seismic Monitoring System for Natural Gas Governor Station and It's Field Application to Minimize Earthquake Damage
Yoo H.R. ; Park S.S. ; Park D.J. ; Koo S.J. ; Cho S.H. ; Rho Y.W. ;
Journal of the Korean Institute of Gas, volume 4, issue 3, 2000, Pages 19~25
In order to prevent secondary disaster such as gas explosion which comes after a devastating magnitude earthquake, the seismic monitoring and transmission system for natural gas governor station was developed. To measure ground motions precisely and operate the seismic monitoring system efficiently, the position and method of accelerometer installation were recommended by the analysis of ground noise patterns of governor station. For making a decision on prompt shut-off of gas supplies in the event of a great earthquake, the real-time calculation algorithm of PGA(Peak Ground Acceleration) and SI(Spectrum Intensity) were developed and it has been implemented in the seismic monitoring and transmission system.
Analysis of Induced Voltage on the Gas Pipeline at the Fault in a Underground Power Cables
Bae J. H. ; Kim D. K. ; Kim K. J. ;
Journal of the Korean Institute of Gas, volume 4, issue 3, 2000, Pages 26~32
Because of the continuous growth of energy consumption, and also the tendency to site power lines and pipelines along the same routes, the close proximity of high voltage structures and metallic pipelines has become more and more frequent. Moreover, normal steady state and fault currents become higher as electric networks increase in size and power Therefore, there has been and still is a growing concern(safety of people marking contact with pipeline, risk of damage to the pipeline coating, the metal and equipment connected to pipeline, especially cathodic protection system) about possible hazards resulting from the influence of high voltage power system on metallic structures(gas pipeline, oil pipeline and water pipeline etc.). Therefore, we analyze the interference problems when the gas pipeline is buried with power cable in the same submarine tunnel. This paper present the results of the study about interference mechanism, AC corrosion limitation of safety voltage and analysis of induction voltage.
A study of the hazard of fire and explosion due to electric charge by Gas-Solids flow in pipeline
Chung Jae Hee ; Seo Dae Won ; Koo Ja Hyeuk ; Kim Sung Jun ; An Heau Seak ; Kim Joon Ho ; Hong Sung Kyung ; YAMAGUMA Mizuki ; KODAMA Tsutomu ;
Journal of the Korean Institute of Gas, volume 4, issue 3, 2000, Pages 33~38
When fire and explosion accidents have occurred due to a leak of the flammable gas involving the LNG & LPG in an industrialized society, it is a very important problem. Accordingly, in this paper, we have compared and analyzed the occurrence transition and the electrostatic energy according to dust supplies and pressure variations for the electric charge due to the gas-solids of pipe flow. As the experimental results, if dust amounts and the initial pressure increased, electric charge in the pipe and the exit increased. The Specific charge of
increased proportionally if the initial pressure increased but if the quantity of dust increased, the specific charge decreased. Energy increased significantly as the dust amounts and the initial pressure increased. The possibility of fire and explosion exist in the measuring point(M 1) and the Faraday cage if natural gas and LPG were used.
The Development of GIS Interconnected Corrosion Prediction System for Underground Buried Gas Pipelines
Bae Jeong-Hyo ; Kim Dae-Kyeong ; Kim Ki-Joon ;
Journal of the Korean Institute of Gas, volume 4, issue 3, 2000, Pages 39~45
In general, most of the GIS only deal with materials and geometric data which just include position, radius, length of the structure. Therefore it's hard to get corrosion data from it. But the one that an owner of metallic structures want to know is the integrity of the structure. Cathodic Protection System can not protect corrosion on the underground facilities perfectly but protect corrsion effectively. It therefore is necessary to monitor the facilities continually So, we need the development of GIS interconnected a corrosion prediction system on the view point of the efficiency of operation and the protection for a big accident. The results of the development of its system are described in this paper. It can do life prediction and interference analysis and also newest corrosion data should be updated regularly.
A Study on the Thermal Flux Estimation of Fireball
Kim In-Tae ; Kim In-Won ; Song Hee-Oeul ;
Journal of the Korean Institute of Gas, volume 4, issue 3, 2000, Pages 46~52
In order to evaluate the risk assessment of Fireball, a program, FIRESTOR, was developed. With this program, thermal fluxes due to the fireball of propane and n-butane were predicted to analyze the damage of Puchen gas explosion accident and thermal fluxes compared with the BLEVE ESTIMATOR, and commercial program SAFER Dupont Co. Thermal fluxes with variation of distance from the explosion source by BLEVE ESTIMATOR, SAFER and FIRESTOR was made a comparative analysis each other for the constant pressure of propane and n-butane. The values calculated by FIRESTOR were between those by BLEVE ESTIMATOR and SAFER. Consequently FIRESTOR is proved to be an good program to analyze the damage of Fireball.
The Hazard Assessment of Release and Dispersion of CNG Service Station
Choi Jong-Woon ; Lee Su-Kyung ;
Journal of the Korean Institute of Gas, volume 4, issue 3, 2000, Pages 53~58
It was carried out consequence analysis(CA) of CNG (compressed natural gas) service station and we compared the results of CA of CNG service station with LPG service station which was installed by high Pressure gas law. The results of CA were that distance of CNG LFL was 1.5 times than the length of LPG LFL. Thermal radiation effect about CNG may not be showed damage of process facilities, but in the case of LPG, it was enough to have an large damage effect on a downtown. The thermal radiation of 37.5
extended 12.6 m. Also, in the case of 12.5
which was able to burn wood, the radiation effect of LPG is 3 times than CNG.
Development of Real Time Monitoring System for third party damage Detection Using Wireless Data Communicating
Park S.S. ; Cho S.H. ; Yoo H.R. ; Kim D.K. ; Jeon K.S. ; Park D.J. ; Koo S.J. ; Rho Y.W. ;
Journal of the Korean Institute of Gas, volume 4, issue 3, 2000, Pages 59~64
The real time monitoring system is developed to detect third party damage imposed on natural gas pipeline and to estimate a damage position in section of pipeline in need of monitoring the third party damage. The monitoring system uses wireless data communication in order to build up data communication network. The availability of monitoring system was evaluated through full scale field damage test at Masan's submarine gas pipeline. It was turned out that the estimation error was one percentage of the propagation speed of damage sound in the gas pipeline.