• Journal of the Korea Institute of Information and Communication Engineering
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• v.17 no.1
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• pp.255-261
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• 2013

In this paper, we developed and tested a program for prediction flash fire in a combat system. Purposes of the program are flash fire prediction of combat system for analysis vulnerability and survivability, and visualization for fire-related information. To do this, we defined critical components of the combat system which has probabilities of flash fire occurrence, and proposed Flash Fire Probability Tree which is based on Fault Tree Analysis(FTA). The program visualizes positions of critical components in combat system, positions of penetrated components, selected Flash Fire Probability Tree, temperature profile, and tables for properties of matters.

• Proceedings of the Korea Institute of Fire Science and Engineering Conference
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• 2013.11a
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• pp.208-209
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• 2013

본 연구에서는 철갑소이탄이 장갑을 관통한 후 전투시스템 내의 적재포탄(고폭탄 또는 추진제)에 피탄되었을 때 순간화재 발생확률에 대해 전산해석을 수행하였다. 장갑은 RHA 재질로 설정하였고, 장갑 두께를 5~30 mm까지 5 mm씩 증가시키며 전산해석을 실시하였다. 고폭탄은 COMPB, TNT, PBX가 사용되었으며 추진제는 ANB가 사용되었다. 본 해석은 Autodyn 프로그램을 사용하였으며, 순간화재 발생 여부를 해석하기 위해 Lee-Tarver ignition and growth model을 사용하였다. 해석 결과, 철갑소이탄이 고폭탄 TNT와 PBX에 피탄되었을 때, 순간화재 발생확률이 모두 100%를 나타내었으며, 고폭탄 COMPB의 경우, 0.8~0.08%로 나타났다. 추진제 ANB의 순간화재 발생확률은 3.8~3.6%로 나타났다.

• 방재와보험
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• s.111
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• pp.58-61
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• 2006

방직 공장은 섬유의 착화 용이성, 원료의 밀집도, 연속공정으로 발화순간 전체 공정으로 연소가 확대되기 쉬우며, 착화되면 다량의 연기와 유독가스를 발생하기 때문에 항상 화재에 대한 각별한 주의가 요구되는 곳이다. 공장 화재 사례를 통해 문제점 및 각종 대책에 대해 알아보자.

• Fire Science and Engineering
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• v.16 no.3
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• pp.8-11
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• 2002

Recently, the spark and the overheat due to in the failure of pressure contacts on connecting points and the momentary short circuit have been the major causes of electrical fire because these may cause the deposition and the graphite of insulating materials in electrical wiring system. Also, because in these cases the current is a surge one, the losses and faults of a communication, a home appliances, a computer and a measuring instrument may occur. Especially, in such cases, we are very difficult to detect the failure of pressure contacts on connecting points and the momentary short circuit. In this paper, we have developed an auxiliary control device, the electrical fire prevention control device(EFPCD), of an earth leakage breaker(ELB). And we can pre-vent the electrical fire caused by the spark and the overheat occurring in the failure of pressure contacts in connecting points and the momentary short circuit with the EFPCD.

• Fire Science and Engineering
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• v.10 no.4
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• pp.13-18
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• 1996

A general description of sprinkler activation time in compartment-fire-generated smoke layers is made. For calculation of the time hot layer temperature is obtained from two-layer zonal model and time constant of sprinkler is measured. Upper-layer thickness at the instant of sprinkler activation is also presented with changes of opening area. The output of the present study provide inputs for the interaction modeling of sprinkler spray and compartment fire environment, which simulates fire suppression phenomena. Futhermore, experiments are performed in mock-up with gasoline pool fire in order to evaluate the reliability of the model.

• Proceedings of the Korea Institute of Fire Science and Engineering Conference
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• 2003.10a
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• pp.142-145
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• 2003

• Proceedings of the Korea Institute of Fire Science and Engineering Conference
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• 2013.04a
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• pp.169-170
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• 2013

• Proceedings of the Korea Institute of Fire Science and Engineering Conference
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• 2013.04a
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• pp.165-166
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• 2013

• Proceedings of the Korea Institute of Fire Science and Engineering Conference
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• 2004.11a
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• pp.287-291
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• 2004

• Proceedings of the Korea Institute of Fire Science and Engineering Conference
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• 2013.11a
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• pp.204-205
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• 2013