• Title/Summary/Keyword: Fire engine

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An Experimental Study on the Automobile Engine Room Fire Using the Extinguishing Agents (소화약제를 이용한 자동차 엔진룸 화재 실험에 관한 연구)

  • Han, Yong-Taek;Kim, Dong-Ho;Kwon, Sung-Pil
    • Fire Science and Engineering
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    • v.28 no.4
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    • pp.1-7
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    • 2014
  • Several complex devices and equipments are installed in the car's engine room, including various kind of oils or other flammable materials. So re-ignition is very likely to take place in it. In addition, it is restrictive for the driver or the occupant to open the bonnet and to spray the fire extinguisher in the engine room due to the high possibility of explosion. Therefore, a fire extinguishing system, which can detect a fire and inject the fire extinguishing agent to extinguish it, and fire extinguishing agents including HFC-227ea, which can stand the high temperature within the engine room and hold the viscosity sufficient to keep it in the kind of foam, were developed and tested. And the suffocation effect and the cooling effect come from the fire extinguishing principle of the foam fire extinguishing agent and the inhibiter catalyst effect come from the one of HFC-227ea was led simultaneously, and fire extinguishing agents without the secondary damage caused by residuals after the fire extinguishment like a case of the powder fire extinguishing agent, were developed. And experiments using a vehicle collision after the discharge is complete, foreign material can be removed without extinguishing the advantage that experimental results obtained.

A Study on the Application of a Exhaust Engine in Basement Karaoke Fires (지하 노래방 화재 시 배연차의 활용에 관한 연구)

  • Lee, Sung-Ryong
    • Tunnel and Underground Space
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    • v.20 no.4
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    • pp.277-283
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    • 2010
  • In this study, an experiment was conducted to evaluate the effectiveness of a exhaust engine in a basement karaoke fire. Exhaust engine was used as ventilation equipment in the experiment. Experiment was carried out in a basement karaoke for redevelopment. Temperature distribution and smoke concentration were evaluated according to the operation of an exhaust engine. Temperatures were decreased below $50^{\circ}C$ at the corridor due to the operation of the exhaust engine. Visibility was also improved.

Application of a Turbojet Engine for Fire Extinguishing

  • Slitenko, A.F.;Kim, SooYong
    • International Journal of Aeronautical and Space Sciences
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    • v.1 no.1
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    • pp.62-69
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    • 2000
  • Present study deals with performance analysis of an inert gas generator (IGG) which can be used as effective means to suppress fire. The IGG uses a turbo-jet engine to generate inert gas for fire extinguishing. It is generally known that a less degree of oxygen content in the product of combustion will increase the effectiveness of fire extinguishing. An inert gas generator system with water injection has advantages of suffocating and cooling effects that are very important factors for fire extinguishing. Some aspects of influencing parameters, such as, air excess coefficient, compressor pressure ratio, air temperature before combustion chamber, gas temperature after combustion chamber, mass flow rate of water injection etc. on the performance of IGG system are investigated.

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Analysis of an Automotive Fire Case that a Fire Broke out during Driving Immediately after DPF Cleaning (DPF 클리닝 직후에 주행 중 발생한 승용차화재 사례의 분석)

  • Lee, Euipyeong
    • Transactions of the Korean Society of Automotive Engineers
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    • v.24 no.5
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    • pp.556-565
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    • 2016
  • As a result of the enforced control of emission, many devices, including the diesel particulate filter, have been installed in diesel cars to reduce the emission of particulate matters. In this study, a car fire case has been investigated and analyzed. A car fire broke out after the vehicle traveled a distance of 1.4 km from a car service center. The car was provided with DPF cleaning when the DPF warning light came on. After being dismantled in the engine room, the car's engine and gearbox were investigated. The findings showed that the rear part of the DPF metal case was melted and punctured, while the honeycomb filter of the DPF was damaged. The car fire was caused by an overheated DPF associated with inaccurate maintenance practice. Therefore, the responsibility of the fire rested on the car service center that performed the DPF cleaning.

The Special Plan of the Traffic Accident Treatment in the Emergency Car Concerning Fire Fighting (소방관련 긴급자동차의 교통사고처리 특례방안)

  • Jeng, Gi-Sung
    • Fire Science and Engineering
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    • v.22 no.2
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    • pp.20-29
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    • 2008
  • The traffic accident of Fire engine takes place very much, compared with that of the past. The reason is that there is a lot of the increase of the demand in the fire, rescue, first aid, and the public request. Also, because the Fire engine should go out at the place of the accident very quickly, it should inevitably violate the traffic regulations. Therefore, this is due to the traffic accident. Despite the urgent situation in the infringement motive of traffic regulations, the outbreak of the traffic accident does not vary largely from the degree of the disadvantage. Accordingly, a fire officer should take charge of his social and economic disadvantage by himself. In this situation, a fire officer has no choice but to start moving passively not to be afflicted with his own disadvantage. Most of the situations concerning the fire fighting are the ones to be controlled urgently. Nevertheless, because of the disadvantage of the traffic accident, passive mobilization of the fire fighting equipment is the heavy burden of all the people of the nation. Therefore, Special institutional safety device should be ready for the protection of the life and property of all people. The special law concerning the processing in the accident of the emergency car needs to be revised. By establishing this special law, the government should not provide the officer who drives the fire engine with the disadvantage caused by traffic accident.

Fire Simulation for Vent Flow and Temperature in Engine Room of Small Ship: Effects of Ceiling Duct Location and Side Vent Size (소형선박 기관실의 개구부 유동 및 온도에 대한 화재시뮬레이션: 천장 통풍통 위치 및 측면 개구부 크기 영향)

  • Jeong, Lee-Gyu;Lee, Chi Young
    • Journal of the Korean Society of Marine Environment & Safety
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    • v.26 no.5
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    • pp.454-465
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    • 2020
  • Fire simulations were performed using the Fire Dynamics Simulator (FDS) software to examine the vent flow and temperature in the engine room of a small ship. A diesel fire with a heat release rate of 10 kW was targeted, and the effects of the ceiling duct location, side vent existence and nonexistence, and side vent size were investigated. The existence or nonexistence of the side vent and its size considerably affected the smoke behavior, mass flow rate through the vent, and temperature. When the side vent was not installed or was small, the smoke layer reached the floor in the engine room. In addition, as the side vent size increased, the mass flow rate through the vent increased with decreasing temperature value. However, the effects of the ceiling duct location on the smoke behavior, mass flow rate through the vent, and temperature seemed to be relatively minor compared to those of the side vent size. Therefore, to improve the fire safety of the engine room in a small ship, the side vent size is considered to be a more important design factor than the ceiling duct location.

A Study on the Friction Loss Reduction in Fire Hoses Used at a Fire Scene (화재현장에서 사용하는 소방호스의 마찰손실 감소 방안에 관한 연구)

  • Min, Se-Hong;Kwon, Yong-Joon
    • Fire Science and Engineering
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    • v.27 no.3
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    • pp.52-59
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    • 2013
  • It was described the measured friction loss depending on pressure used and changes in water flow rates for a fire hose used at a fire scene on this study. As a result of actual measurement based on the result obtained by analyzing the use situation of a fire hose such as the kind, quantity, pressure used, etc. of a fire hose, the friction loss in a fire hose under the condition of using by a fire officer at a fire scene was measured as up to 56.8 %. This is much different from the equivalent length of a fire hose used to calculate the pump head in an indoor and outdoor fire-fighting facility. There is no related restrictive regulation on friction loss, there are even no data on friction loss measured by fire hose makers, and spreading a fire hose without considering friction loss at a fire scene can result in an increased length of hose used and a high-pressure water discharge from a fire engine, so this study aims to establish a standard for an equivalent length to friction loss in a fire hose and to propose a spreading method considering friction loss in a fire hose at a fire scene.

THE DEVELOPMENT OF A UV FLAME DETECTOR FOR THE AUTOMATIC FIRE SUPPRESSION SYSTEM FOR ENGINE COMPARTMENT FIRES

  • Lim, Sung-Mook;Jung, Ki-Chang;Kim, Eung-Sik;Kim, Hong
    • Proceedings of the Korea Institute of Fire Science and Engineering Conference
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    • 1997.11a
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    • pp.590-597
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    • 1997
  • In this work, a new type of UV flame detection system was developed. In order to measure the performance of UV flame detector, various kinds of experiments was performed. The results show that the maximum response time of the UV flame detector is 0.2 seconds when the detection distance is one meter The advantages of this system include wide area, high speed response and high sensitivity. After testing the W flame detector in engine compartment it detected fire within 0.09 seconds and extinguished within 5 seconds. Hence, the UV flame detector can be applied in automatic fire suppression system for automobiles.

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