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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
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Volume & Issues
Volume 13, Issue 6 - Dec 2009
Volume 13, Issue 5 - Oct 2009
Volume 13, Issue 4 - Aug 2009
Volume 13, Issue 3 - Jun 2009
Volume 13, Issue 2 - Apr 2009
Volume 13, Issue 1 - Feb 2009
Selecting the target year
Property Prediction of Rupture Disc by Using Finite Element Analysis
Han, Chang-Yong ; Lee, Seong-Beom ; Jung, Hee-Suk ; Kim, Tae-Gu ;
Journal of the Korean Institute of Gas, volume 13, issue 3, 2009, Pages 1~6
High pressure devices are used widely. Interest in rupture disc to people is the increases in protect of facilities and people. A rupture disc consists of mainly three parts: holder, plate and vacuum support. Rupture discs are rusted or destroyed by diverse environments. Rupture discs are made from STS 316L stainless steel because of its high corrosion resistance and yield strength. In this study, modeling of a rupture disc by CATIA V5 and finite element analysis by ANSYS were carried out. The finite element analysis results executed to predict properties of the rupture disc with thickness and height.
The Study on the Regulation of Classification of Hazardous Materials for the Safety of Rail Transportation
Kwon, Kyung-Ok ;
Journal of the Korean Institute of Gas, volume 13, issue 3, 2009, Pages 7~14
Many countries are managing the transportation of hazardous materials under the specific provisions especially, as well as use, storage and management, because of their high risks. For the purpose of the revision of rail safety law for the safe transportation of hazardous materials, amount and kind of hazardous materials transported by rail in Korea are analysed and the standards of classification of hazardous materials are compared in domestic and abroad. There are lots of benefits for national rail safety law to implement an international law because our country's geographic location is convenient to connect the continent and to across the border. It is suggested that implementing a classification and test methods of hazardous materials enable to use internationally for the preparation of rail transportation to be increased.
An Experimental Study on Investigation of the Main Factors to Improve the Formation Performance of Gas Hydrate
Lee, Jeong-Hwan ;
Journal of the Korean Institute of Gas, volume 13, issue 3, 2009, Pages 15~21
Gas hydrate is an ice-like crystalline compound that forms at low temperature and high pressure conditions. It consists of gas molecules surrounded by cages of water molecules. Although hydrate formation was initially found to pose serious flow-assurance problems in the gas pipelines or facilities, gas hydrates have much potential for application in a wide variety of areas, such as natural gas storage and transportation. Its very high gas-to-solid ratio and remarkably stable characteristics makes it an attractive candidate for such use. However, it needs to be researched further since it has a slow and complex formation process and a high production cost. In this study, formation experiments have been carried out to investigate the effects of pressure, temperature, water-to-storage volume ratio, SDS concentration, heat transfer and stirring. The results are presented to clarify the relationship between the formation process and each factor, which consequently will help find the most efficient production method.
Cost-Benefit Analysis for the Safety Measures about High Pressure Natural Gas Pipelines Proposed by Quantitative Risk Analysis
Ryou, Young-Don ; Lee, Su-Kyung ; Lee, Kyung-Sik ;
Journal of the Korean Institute of Gas, volume 13, issue 3, 2009, Pages 22~27
Recently Urban Gas Business Companies have been allowed to construct High Pressure Natural Gas pipelines, if they adopt the Risk Reduction Measures(RRMs) recommended by Korea Gas Safety Corporation(KGS) after safety assessment. This paper presents a Cost Benefit Analysis(CBA) method, when KGS performs safety assessment and recommends RRMs to Safety Appraisal Committee, to help the Committee make judgements on whether the proposed RRMs are reasonably practicable. We carried out quantitative risk assessment to high pressure natural gas pipelines as a case study and analysed cost benefit for the suggested RRMs. In conclusion, we found out the presented CBA method using PF was proper in Korea.
Comparative Evaluation of Environmental Availability for Hydrogen Supply System with Existing Natural Gas Pipeline
Kim, Hyoung-Sik ; Hong, Seong-Ho ; Hwang, Tae-Yeon ;
Journal of the Korean Institute of Gas, volume 13, issue 3, 2009, Pages 28~32
There are two hydrogen supply systems which are central and distributed supply. Central supply system may be cost-effective but huge supply infra cost is needed. For cost-effectiveness, hydrogen supply with existing natural gas pipeline has been focused in Europe. From the analysis results in this study, hydrogen supply method with existing natural gas pipeline is the better for environmental availability including green house effect.
A Study of Correlation between Flame Propagation Velocity and Scalar Dissipation Rate for a Liftoff Flame
Ha, Ji-Soo ; Kim, Tae-Kwon ;
Journal of the Korean Institute of Gas, volume 13, issue 3, 2009, Pages 33~42
A numerical analysis of reactive flow in a liftoff flame is accomplished to elucidate the characteristics of liftoff flame. To verify reliance of numerical calculation, the liftoff heights of liftoff flame for various fuel exit velocities are compared between the existing experimental research results and the present calculation results. The flame propagation velocity is conducted at the flow redirection point which is on a stoichiometric line ahead of flame front. This point was selected constant distance from triple point regardless of fuel exit velocity at the previous research. This causes considerable errors for the flame propagation velocity and scalar dissipation rate. The main issue of the present research is to establish the resonable method to select the redirection point and so that to clarify the relationship between flame propagation velocity and scalar dissipation rate, which is the core properties in a triple flame stability.
A Study on the Estimation of Human Damage Caused by the LP Gas Flame in Enclosure using Probit Model
Leem, Sa-Hwan ; Huh, Yong-Jeong ;
Journal of the Korean Institute of Gas, volume 13, issue 3, 2009, Pages 43~48
The energetic and environmental problems have been getting serious after the revolution of modern industry. Therefore, demand of gas as an eco-friendly energy source is increasing. With the demand of gas, the use of gas is also increased, so injury and loss of life by the fire have been increasing every year. Hence the influence on flame caused by Vapor Cloud Explosion in enclosure of experimental booth was calculated by using the API regulations. And the accident damage was estimated by applying the influence on the adjacent structures and people into the PROBIT model. According to the probit analysis, the spot which is 5meter away from the flame has nearly 100% of the damage probability by the first-degree burn, 27.8% of the damage probability by the second-degree burn and 14.5% of the death probability by the fire.
Analysis of Flame Shape in Flare Stack
Lee, Heon-Seok ; Kim, Bum-Su ; Jung, Sang-Yong ; Yoo, Jin-Hwan ; Park, Chul-Hwan ; Ko, Jae-Wook ;
Journal of the Korean Institute of Gas, volume 13, issue 3, 2009, Pages 49~53
Relief systems can improve the process safety because it has the function for the prevention of overpressure. Flare stacks is necessary to avoid explosion, radiation, or toxicity by waste-gas emitted from relief system. Safe combustion is one of the important factors to improve safety and the quantity and velocity emitted is ruled in the API code 521. Due to the pressure of released gas and mass flow, a flame from flare stack is similar to jet fire. In this study, we have investigated the effect of flame form on complete combustion and heat emission. API code was similar to jet fire model in flame length, the flame had an effect on the ground.
A Study on Consequence Analysis of LNG/LPG/Gasoline Station
Yoo, Jin-Hwan ; Kim, Bum-Su ; Lee, Heon-Seok ; Ko, Euy-Seok ; Lee, Gi-Baek ;
Journal of the Korean Institute of Gas, volume 13, issue 3, 2009, Pages 54~60
The advancement of industry have increased domestic energy demands and energy facilities such as storage facility, compressed gas pipe, station, and tank lorry. Also, concern about environment have diversified energy source to clean energy such as LNG. In these major energy facilities, major accident can happen to result in fire, explosion, toxic release and etc. In addition, it may cause chain accidents to the adjacent energy facilities. In this research, safety assessment was performed through the consequence analysis of LPG liquefied petroleum gas) station, gasoline station and LNG(liquiefied natural gas) station. The obtained result will be helpful to make a safety guideline of the LPG/LNG station built adjacent to the gasoline station.