• Proceedings of the Korea Institute of Fire Science and Engineering Conference
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• 2006.04a
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• pp.193-197
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• 2006

• Bulletin of the Korean Institute for Industrial Safety
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• v.1 no.1
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• pp.17-20
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• 2001

화학공장의 각종 공정설비의 규모가 커지고 복잡화됨은 물론 사용되는 화학물질의 다양화 및 사용량의 증대로 화재·폭발의 위험성이 잠재하고 있다. 이러한 중대 산업사고를 예방하기 위해 세계 각 국에서는 화재폭발에 관한 연구가 수행되고 있다. 본고에서는 최근 일본에서 화재폭발에 관한 연구동향을 일본 소방청 소방연구소와 산업안전연구소의 연구과제를 중심으로 소개하고자 한다.(중략)

• Proceedings of the Korea Institute of Fire Science and Engineering Conference
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• 2011.11a
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• pp.52-56
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• 2011

국내 재래시장 상가건축물은 타 상업지역 보다 노후화된 상업건축물이 상대적으로 많으며 밀집도 또한 높다고 할 수 있어 화재발생 시 화재확산 속도가 빠르고 화재진압이 어려워 인명 및 재산 피해의 가능성이 크다고 할 수 있다. 이에 따라 정부에서는 재래시장을 특정관리대상으로 지정하여 정기적으로 점검을 하고 있으나 소방시설에 비해 상대적으로 피난계획 및 피난설비에 대해서는 적절한 성능평가 및 점검이 이루어지고 있지 않고 있다. 이에 따라 본 연구에서는 대구시 소재의 특정관리대상으로 지정된 재래시장 상가건축물을 조사하여 재래시장의 평면유형분류를 하였고, 각 유형이 가지는 특성을 분석하였으며 대상건축물 피난설비의 실태조사를 통해 경년변화에 따른 설비의 노후화 특성을 분석하였다.

• Journal of the Korean Society of Mechanical Technology
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• v.13 no.4
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• pp.1-7
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• 2011

The paper concerns numerical study of fully developed laminar flow of a Newtonian water and non-Newtonian fluids, 0.2% aqueous of sodium carboxymethyl cellulose(CMC) solution in eccentric annuli with combined bulk axial flow and inner cylinder rotation. Pressure losses and skin friction coefficients have been measured when the inner cylinder rotates at the speed of 0~200 rpm. A numerical analysis considered mainly the effects of annular eccentricity and inner cylinder rotation. The present analysis has demonstrated the importance of the drill pipe rotation and eccentricity. In eccentricity of 0.7 of a Newtonian water, the flow field is recirculation dominated and unexpected behavior is observed. it generates a strong rotation directed layer, that two opposing effects act to create two local peaks of the axial velocity. The influences of rotation, radius ratio and working fluid on the annular flow field are investigated.

• Journal of the Korean Society of Mechanical Technology
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• v.13 no.4
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• pp.9-14
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• 2011

The flow rate analysis for sanitary fixtures has been studied to determine the water supply piping system and size. The study has been carried out to analyze for a various water supply pressure and piping size theoretically. Also, the study has been carried out to analyze for a various water supply piping system experimentally. The water supply pressure is varied from 0.01MPa to 0.07MPa, and the piping size is varied from 6mm to 15mm. The water supply piping systems are one-to-one, all-loop-type, and bathroom-loop-type water supply piping system. The results indicate that the piping size is able to supply water fully in case of smaller than 15mm if the water supply pressure keep an necessary minimum pressure. And the gap of flow rate is very little for the various water supply piping systems.

• Proceedings of the Korea Institute of Fire Science and Engineering Conference
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• 2007.04a
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• pp.214-219
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• 2007

• Proceedings of the Korea Institute of Fire Science and Engineering Conference
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• 2012.04a
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• pp.155-158
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• 2012

$CO_2$ 소화설비는 방호구역 내 적절한 설계농도를 확보하고 또한 일정 시간 유지해 주어야 충분한 소화성능을 발휘할 수가 있다. 따라서 시공 후에도 $CO_2$ 소화설비의 성능을 주기적으로 확인이 필요하다. 석유화학플랜트나 원자력발전소와 같은 국가 중요위험시설은 화재 발생시 대형피해가 발생할 수 있으므로 직접방사시험을 통해 소화성능을 검증할 필요가 있다. 본 연구는 국가 중요위험시설에 설치된 전역방출방식의 $CO_2$ 소화설비 중에서 표면화재 방호구역과 심부화재 방호구역을 각각 선정하여 $CO_2$ 소화설비의 소화성능을 검증해 보았다. 시험결과 표면화재와 심부화재 방호구역 모두 $CO_2$ 설계농도를 확보하고 있음을 확인하였으며, 심부화재의 경우 20분 이상 설계농도가 유지되었다. 본 연구를 통해 직접 방사시험 방법 및 판정방법을 소개하였으며, 국가 중요위험시설에는 직접 방사시험을 통한 소화설비 신뢰성 검증의 필요성을 제기하였다.

• Fire Science and Engineering
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• v.28 no.5
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• pp.14-22
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• 2014

Hydrocarbon fires and explosions in petrochemical plants have occurred repeatedly every year. But domestic law of fire protection system is insufficient for the worst case scenario. In this study, we analyzed domestic and foreign standards of fire protection system in petrochemical plants and surveyed firefighting equipment of 32 petrochemical plants in ulsan petrochemical complex. Finally, it is necessary to design fire water supply based on the worst case scenario in petrochemical plants and firefighting equipment such as fixed water spray system, elevated monitor nozzle, water curtain, large amount foam monitor system should be installed for the worst case scenario in petrochemical plants.

• Fire Science and Engineering
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• v.33 no.4
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• pp.130-139
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• 2019

The electronics factory fire, that occurred at 15:40 on August 21, 2018, killed nine people and injured six. This study analyzes the causes of many of the casualties from the fire, and is based on fire investigation results and so on. The findings suggest that major causes included failure of the automatic alarm system to function, failure of the emergency broadcasting system to function, the fire suddenly spreading due to polyurethane foam in a ceiling on the 4thfloor, a power outage immediately after the fire started, a sprinkler system that was not working, a delay in reporting the fire, and improper management of fire facilities by a fire safety management company.

• Proceedings of the Korea Institute of Fire Science and Engineering Conference
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• 2008.04a
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• pp.108-111
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• 2008

Emergency lantern is an escape equipment of fire fighting. This equipment of obligation installation in buildings. But, We cast doubt on this equipment's reliability. Therefor we have need to study of this equipment's reliability. This paper research general emergency lantern for up grade reliability. For connection to fire alarm system, alarm for get lost general emergency lantern, and pilot lamp for interruption of electric power, and charge to rechargeable battery in general emergency lantern from fire alarm system. Then view very good result in reliability.