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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 17, Issue 6 - Dec 2013
Volume 17, Issue 5 - Oct 2013
Volume 17, Issue 4 - Aug 2013
Volume 17, Issue 3 - Jun 2013
Volume 17, Issue 2 - Apr 2013
Volume 17, Issue 1 - Feb 2013
Selecting the target year
A Study on the Quantitative Analysis for Explosion of LPG Storage Tank
Leem, Sa Hwan ; Huh, Yong Jeong ;
Journal of the Korean Institute of Gas, volume 17, issue 3, 2013, Pages 1~7
DOI : 10.7842/kigas.2013.17.3.1
The influence of the over-pressure caused by Explosion in gas station was calculated by using the Hopkinson's scaling law and injury effect by accident to buildings and human bodies was estimated by applying the probit model. As a result, the injury estimation was conducted by using the probit model for leakage 10% of 20ton storage tank. The separate distances from LPG station for building(damage) and human(lung hemorrhage to death) are 260 and 30 meters, respectively.
Study for Fire Examples of LPG Leakage Including Fuel hose, Injector and Pressure Regulator Connector in Vehicle
Lee, Il Kwon ; Kook, Chang Hoo ; Suh, Moon Won ; Jung, Dong Hwa ;
Journal of the Korean Institute of Gas, volume 17, issue 3, 2013, Pages 8~13
DOI : 10.7842/kigas.2013.17.3.8
The purpose of this paper is to study for fire example by fuel leakage in LPG Vehicle. At first example, the car was repaired the fuel line that was connected with pressure hose between fuel regulator and injector in engine. But the service man was not very tighten with regular torque. At a result, the gas leaked on hot parts of engine. It verified the production of fire by engine heat. At second example, when the repair man, after replacement the injector, inserted the injector in a assembling part of it, he didn't the transform condition of fixing part. Therefore, the tearing phenomenon of O ring producted the controlled leakage of fuel by the injector deflection. It found the fact that the fuel leaked with gap of O ring. At third example. the fuel-cut solenoid valve was lined with pressure regulator unit. But the service man didn't throughly certify the leaked work of connected parts after repaired it. As a result, it certified the fire by engine heating leaked liquefied petroleum gas. Therefore it have to minimize the fire production that the driver should do no problem to throughly manage the fuel system.
Experimental Study on the Safety of a Valve for a Special Gas Cylinder
Kim, Chung Kyun ;
Journal of the Korean Institute of Gas, volume 17, issue 3, 2013, Pages 14~19
DOI : 10.7842/kigas.2013.17.3.14
This paper presents an experimental study on the safety of a valve for a special gas cylinder. The test valves that were randomly dismantled from the special gas cylinder were experimented on the gas leakage and operation safeties. The crack, wear and deformation of the valve body, screw thread, safety disk, vent hole, stem and handle components that may affect to the gas leakage safety of a used valve were not found in this experimental study. A painted handle of a valve was partly stripped from the coated surface, and the surface of PT screw of a used valve body was rusted. But, these paint and rust problems do not affected to the gas leakage safety of used valves. And there was no gas leakage in the dismantled valve, and the permanent deformation and partial scars of a valve stem and O-rings were observed on the rubbing surfaces. Thus, the valve seat and O-rings are recommended to be replaced for a gas leakage safety of a dismantled valve. And it is necessary to repair and inspect handle fastening forces for a safe opening and closing operations of a valve.
An Empirical Study on the Designed Burst Pressure of Type3 Composite Cylinder
Kim, ChangJong ; Cho, Sung Min ; Kim, Eun Jung ; Yoon, Kee Bong ;
Journal of the Korean Institute of Gas, volume 17, issue 3, 2013, Pages 20~26
DOI : 10.7842/kigas.2013.17.3.20
In this research, an empirical study on the designed burst pressure of Type3 composite cylinder was performed by hydrostatic burst test equipment. The designed burst pressure of Type3 composite cylinders, which are 6.8 liter and 31 MPa of service pressure, was estimated with the analysis using the finite element method. In order to confirm its accuracy, the burst test of small Type3 composite cylinders was perfomed through three times. The burst test equipment can pressurize to 400 MPa. As a result of comparison between the designed burst pressure and actual burst pressure, the difference was less than 4 percentage. With a test result, the analysis accuracy was verified. This technique will be applied to both qualification and inspection for the composite cylinder.
Analysis of Pure Refrigerant Cycle Design on C3MR Process through Driver Selection
Lee, Inkyu ; Tak, Kyungjae ; Lim, Wonsub ; Moon, Il ; Kim, Haksung ; Choi, Kwangho ;
Journal of the Korean Institute of Gas, volume 17, issue 3, 2013, Pages 27~32
DOI : 10.7842/kigas.2013.17.3.27
Natural gas liquefaction process which is operated under cryogenic condition spends large amount of energy. Most of energy in the natural gas liquefaction process is consumed by compressors. Therefore, minimizing energy consumption of compressors is an important issue in process design and operation. Among various natural gas liquefaction processes, propane pre-cooled mixed refrigerant (C3MR) process consists of mixed refrigerant system and pure refrigerant system. In this study, to find the optimal design of pure refrigerant system, pure refrigerant cycle is simulated on different number of pressure levels and the necessary energy of each design is compared. After that, the driver selection model is applied to analyse each processes, which has different number of equipments, in terms of cost. As the result, the design using many equipments spends lower energy. Using this result, this study suggests standard of process design selection by the cost term.
A Study on Risk Analysis of Manufacturing Process Using the Bow-Tie Method
Tae, Chan Ho ; Lee, Heon Seok ; Byun, Chul Hyun ; Yang, Jae Mo ; Park, Chulhwan ; Ko, Jae Wook ;
Journal of the Korean Institute of Gas, volume 17, issue 3, 2013, Pages 33~38
DOI : 10.7842/kigas.2013.17.3.33
The chemical industries have used large amounts of chemicals. If an accident occurs, it caused physical and human damage. We intended to investigate risk assessment for the prevention of accidents. The risk assessment by HAZOP technique has been applide to major chemical industries, and that result has been utilized efficiently. In this study, we analyzed Bow-Tie and HAZOP technique, and risk assesment was performed by Bow-Tie on toxic material process. As a result, the risk that can not be found in the risk assessment of the other is derived, and improvements of 14 to remove the dangers derived. Bow-Tie risk assessment is suitable to derive the applicability of risk factors in the field and to establish the improvement measures.