• Journal of the Korean Institute of Gas
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• v.7 no.2 s.19
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• pp.42-47
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• 2003

To prevent major accident from toxic gas release, explosion, or fire in chemical processes, it needs dynamic control of human error with mechanical failure. Although most of major accidents occur with a coupling of human error and mechanical failure, numbers of researches have studied human error and mechanical reliability independently, but no where cross each other, to reduce the risk in the process. This work focuses on the coincidence of human error and mechanical failure for management of human error, and on some important performance shaping factors to propose a method for improving safety effectively of the process industries.

• Annual Conference of KIPS
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• 2009.11a
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• pp.485-486
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• 2009

도시가스 배관에서 노출배관 위험요소에 대한 모니터링이 필요하나 현재는 인위적으로 사람에 의해 확인하거나 유선 기반의 감시 시스템이 존재한다. 이에 대한 제반 비용을 감소시키면서 무선 기반의 감시 인프라를 구축하기 위해 본 연구에서는 노출배관의 위험요소 중에서 가장 중용한 응력과 진동을 측정하고 CDMA 방식을 이용하여 모니터링 시스템에 전달해주는 시스템을 구축하며 실제 환경에서 시험환경(Test-bed)을 조성하여 대상 시설 및 설치 환경에 따라 최적화된 기기 및 인프라를 구축하는 것을 본 연구에서 기밸반된 도시가스 안전 유비쿼터스 인프라에 통합시키는 것을 목적으로 한다.

• 한국가스학회:학술대회논문집
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• 1997.09a
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• pp.7-13
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• 1997

• 한국가스학회:학술대회논문집
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• 1998.09a
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• pp.55-64
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• 1998

• 한국가스학회:학술대회논문집
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• 2000.09a
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• pp.87-94
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• 2000

• 한국가스학회:학술대회논문집
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• 1999.09a
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• pp.34-40
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• 1999

• Journal of the Korean Society of Safety
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• v.21 no.1 s.73
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• pp.48-52
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• 2006

This study is a research of safety valve development for LP gas cylinder which use sintering metal. Re-searcher wishes to apply technology of sintering metal for safety valve development and do gas flow control. The basis of this study is most suitable fluid examination that to reduce gas accident. This research concluded following results. 1. When press pin length is 42mm to 45mm powder quantity is 0.25g, in case of press pin length 36mm to 42mm powder quantity is 0.2g, displayed fluid optimization. 2. When press pin length is 39mm and powder quantity is 0.25g, press pressure displayed fluid optimization at all interests from $1.2\;tons/cm^{2}\;to\;2\;tons/cm^{2}$. 3. When apparent density is about $5.0g/cm^{3}\;to\;4.5g/cm^{3}$, fluid optimization becomes.

• Journal of the Korean Institute of Gas
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• v.25 no.6
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• pp.98-105
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• 2021

Currently, the government's announcement of the Korean version of the New Deal Comprehensive Plan ('20.7.14), expanding the supply of hydrogen production and charging facilities, and major companies are rapidly building related facilities such as liquefied hydrogen plants and charging stations. However, safety standards for production, storage facilities, transportation, and utilization of liquefied hydrogen value chains in Korea are insufficient, and safety technologies and safety standards over the entire period of liquefied hydrogen are urgently needed. Accordingly, the Korea Gas Safety Corporation is trying to realize a safe hydrogen economy in Korea by enacting safety standards over the entire period, including liquefied hydrogen plants

• Journal of the Korean Institute of Gas
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• v.22 no.5
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• pp.124-132
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• 2018

The supply of renewable energy has become more vigorous due to Paris Agreement. In Korea, supply policies of renewable energy is being promoted with priority given to public buildings, so, the supply of fuel cell system that are relatively easy to install in buildings is expected to expand, so it is important that study on anti-islanding evaluation of grid-connected power conditioning system(PCS) for fuel cell. In this study, we consider that KGS AB934 PC53 in domestic certification standard of PCS for fuel cell correspond with abroad standard and analyze anti-islanding evaluation that important safety performance when connected grid. Additionally, we constructed a prototype for anti-islanding evaluation of PCS for fuel cell connected in parallel and carried out the demonstration evaluation, so, we have conducted ways that ensure safety performance in accordance with the circumstances where several fuel cell systems are installed.

• Journal of Hydrogen and New Energy
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• v.31 no.5
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• pp.453-458
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• 2020

In this study, ethylene-propylene-diene monomer (EPDM) rubbers reinforced with various particle size of carbon black were prepared and tested. We followed recently published CSA/ANSI CHMC2 standard "the test methods for evaluating material compatibility in compressed hydrogen applications-polyemr". Measurement of change in hardness, tensile strength and volume were performed after exposure to maximum operating pressure, 87.5 MPa, for 168 hours (1 week). Once EPDM was exposed to high-pressure hydrogen, the samples experience volume increase and degradation of the physical properties. Also, after the dissolved hydrogen was fully eliminated from the specimens, the hardness and the tensile properties were not recovered. The rubber reinforced with smaller sizes of carbon black particles showed less volume expansion and decrease of physical properties. As a result, smaller particle size of carbon black filler led to more resistance to high-pressure hydrogen.