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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
> Journal Vol & Issue
Fire Science and Engineering
Journal Basic Information
Journal DOI :
Korea Institute of Fire Science and Engineering
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Volume & Issues
Volume 20, Issue 4 - Dec 2006
Volume 20, Issue 3 - Sep 2006
Volume 20, Issue 2 - Jun 2006
Volume 20, Issue 1 - Mar 2006
Selecting the target year
A Study on the Toxic Gases and Smoke Hazard of PASCON Trough
Lee, Chang-Woo ; Hyun, Seong-Ho ; Choi, Don-Mook ;
Fire Science and Engineering, volume 20, issue 2, 2006, Pages 1~7
The aim of the research is to estimate the effect of smoke and combustion gases on humane body indirectly through measuring the toxicity of those. For this purpose, the toxic index of smoke and combustion gases was investigated by smoke hazard test and analysis of smoke which were conducted by KS F 2271 and NES 713 method respectively. It i s proved by KS F 2271 method that PASCON trough is suitable to the testing standard of interior material and construction of building. In addition, it is identified by NES 713 method that combustion gases occurring in PASCON product were only carbon dioxide and carbon monoxide, and the smoke index of those was 0.944. This value means that the hazard effect of smoke gases on humane ! body can possibly happens when exposed to the smoke gases for more than 30 min. In aspect of the domestic situation that have not regulated the hazard estimation and the emissions of smoke when the flame retarding ability of the products have been requested, the toxic indexes of PASCON products are comparatively low.
Simulation of a Clean Room Fire II. Needs of Smoke Control System and Springkler System
Park, Woe-Chul ; Lee, Man-Geun ; Park, Hun-Sik ;
Fire Science and Engineering, volume 20, issue 2, 2006, Pages 8~13
Numerical simulations were carried out for a fire in a clean room to confirm needs of a smoke control system and a sprinkler system, and to investigate a possible smoke spread-out. For a 1 MW methanol fire in a space of
floor and 4 m high, smoke spread-out was scrutinized for failure of the sprinkler system and/or the smoke control system. It was shown that the smoke control system removes smoke safely without the sprinkler system and that the sprinkler system is required to suppress smoke generation and spread of the fire, and to remove the smoke quickly. It was also confirmed that highly reliable sprinkler heads and automatic fire detection system are required for the sprinkler and smoke control systems.
The Applicable Investigation of Response Surface Methodology(RSM) for the Prediction of the Ignition Time, the Heat Release Rate and the Maximum Flame Height of the Interior Materials
Ha, Dong-Myeong ;
Fire Science and Engineering, volume 20, issue 2, 2006, Pages 14~20
The aim of this study is to predict the ignition times and the HRR(heat release rate) for building interior materials. By using the literature data and RSM(response surface methodology), the new equations for predicting the ignition time and the HRR of building interior materials are proposed. The A.A.P.E.(average absolute percent error) and the A.A.D.(average absolute deviation) of the reported and the calculated ignition times by means of the thickness and the density were 4.35 sec and 1.57 sec, and the correlation coefficient was 0.987. The correlation coefficient of the reported and the calculated the net HRR by means of burner width and power was 0.983. Also the correlation coefficient of the reported and the calculated the total HHR by means of burner width and power was 0.999. The correlation coefficient of the reported and the calculated the maximum flame height by means of burner width and power was 0.999. The values calculated by the proposed equations were in good agreement with the literature data.
A Study on the Early Response System Subway Cabin Arson Fire
Roh, Sam-Kew ; Ham, Eun-Gu ; Kim, Si-Gon ;
Fire Science and Engineering, volume 20, issue 2, 2006, Pages 21~30
Since Daegu subway arson fire disaster in 2003, there have been several copycat crimes such as at Seoul Metro line number seven and Hongkong Chuiwan line cases. Oil and gas were used for fire propagation in most cases as in Daegu case and such fire could be expanded to a whole subway cabin within several minutes. The fire may eventually cause the whole subway system stop. Fire damage can be minimized when fire occurrence and diffusion are blocked by stages or isolated rapidly. This study suggests an effective early response system that separates passengers from fire and a real-time fire extinguishment program by stages. Based on the subway arson case studies, the early response scenario has been structured by three stages, i.e., confirmation of fire and damage, early fire extinguishment, and information dissemination and passengers evacuation.
A Study on the Public-Private Partnership in the Emergency Medical System in Korea
Kim, Kook-Rae ; Kim, Tae-Yun ;
Fire Science and Engineering, volume 20, issue 2, 2006, Pages 31~43
In Korea, the Emergency Medical Service, EMS is provided by Fire Services with 119 EMS and all the public uses the service for free. Although it appears very successful and is respected nationally, structural problem EMS exist and are worsening. First of all, the "free riding effect" becomes increasingly problematic. Some argue that 30% of the demands is not urgent or emergent. The total number of demands is increasing even without the free riding effect. The Current EMS system itself cannot meet the increasing EMS demand. The medical aspect is so poor that the EMS cannot dispatch a medical specialist to the scene. The cardiac arrest resuscitation rate is only
, compared to 40% in Boston, MA, USA. But due to the regulations and limitations of the Fire Service organization, it is difficult to secure enough EMS resources. To work out these problems, it needs a structural innovation. To secure enough resources and achieve higher medical performance we should invite the medical sector and the private sector into EMS arena by contracting partnerships with Fire Services and charging a reasonable EMS fee. We found through statistical test that any partnership system is more effective than fire-alone system and most countries around the world have partnership system rather than fire-alone system.
A Numerical Simulation of the Effect of the Injection Angle and Velocity of the
Agent Nozzle on the Characteristics of
Park, Chan-Su ;
Fire Science and Engineering, volume 20, issue 2, 2006, Pages 44~53
We have conducted a numerical simulation under two-dimensional unsteady conditions in order to analyze the effect according to the injection angle and velocity of the
agent nozzle which is one of the elements for the fixed type
fire extinguishing system installed in a ship on the characteristics of flow and
concentration distribution. The flow fields and concentration fields were measured and analyzed. We can found that the difference of flow patterns according to the conditions of
agent injection nozzle, and in all the conditions of
agent injection nozzle, the iso-concentration line was expanded from the region at which vortex was generated to the surroundings. We can expected that the intensity of the wall jet on the bottom floor was generated differently and the iso-concentration lines were expanded or shrunk according to the angle of
agent injection nozzle. In case of increasing
agent injection velocity maintaining the flow quantity of the
agent injection equally, the iso-concentration line of
agent on bottom floor can be formed more higher than in case of decreasing
agent injection velocity.
Analysis of Forest Fire Occurrence in Korea
Lee, Si-Young ; Lee, Hae-Pyeong ;
Fire Science and Engineering, volume 20, issue 2, 2006, Pages 54~63
The number of forest fire under various conditions such as year, month, time, day of the week, region, damaged species, cause, and damaged area are checked, and the statistics of the forest fire causing materials in recent 14 years ('91-'04) are analyzed. The result shows that the year majority of forest fires had happened in last 14 year was 2001 and most of forest fire occurred in April, Sunday, around 14:00 to 15:00. The most damaged region is Gyeongsangbuk-Do, followed by Gangwon-Do, Jeollabuk-Do, and Gyeonggi-Do. The most damaged species is pine tree. The main causes of forest fires are accidental fire and incineration of a field boundary; however, recently, incendiarism is increased. The result of analysis on the damaged area shows that small fires under 5 ha occurred most frequently and large fires (over 30 ha) occurred mostly in Kangwon province (44.2%). The result also shows that the large forest fires (1,113 minutes) require 7.5 time more than the small forest fires (148 minutes). Especially, since average damaged area caused by large forest fire was about 470 ha per incident.
A Study on the Disaster Prevention Countermeasures of Tradition Buddhist Temple Cultural Treasure - A Case Study of the Fire Damage of the Naksansa which was due to Yangyang Forest Fire -
Back, Min-Ho ; Lee, Hae-Pyeong ;
Fire Science and Engineering, volume 20, issue 2, 2006, Pages 64~71
After destruction of the Naksansa which was due to Yangyang forest fire, this the fundamental research about the disaster prevention countermeasures of tradition buddhist temple cultural treasure was performed. The present condition of tradition buddhist temple and related laws were investigated and the present damage condition of the Naksansa was surveyed. Also, the fire damage cases of tradition buddhist temple and the fire laws and regulations were investigated, and the survey about disaster prevention countermeasures was carried out. This research drew up the basic material about the disaster prevention countermeasures of traditional buddhist temple.
A Numerical Study for the Operation of Partial Smoke Extraction System in Tunnel Fire
Yoo, Yong-Ho ; Lee, Eui-Ju ; Shin, Hyun-Jun ; Shin, Han-Chol ;
Fire Science and Engineering, volume 20, issue 2, 2006, Pages 72~79
The objective of this study is to analyze the smoke extraction efficiency using by the partial extraction system with CFD simulation for case of tunnel fire. The Comparison of CFD results with the preceding scaled model test results, it is equal to the smoke extraction efficiency and smoke stratification in tunnel by the partial smoke extraction system (distributed damper). It shows that the smoke extraction efficiency is increased about 7% by the distributed damper which is opened near fire, compare with the distributed damper which is all opened. The case of the fire occurs on a traffic jam in a tunnel, it is proposed that the operating method of partial smoke extraction system for the escaping passengers.
A Review on Spalling Phenomenon of High Strength Concrete during a Fire Accident
Kim, Hyung-Doo ;
Fire Science and Engineering, volume 20, issue 2, 2006, Pages 80~86
This study focuses on spalling phenomenon which is the one of the main issues of high strength concrete. The definition, classification and characterization, causes and the reaction mechanism of the spalling were investigated on the basis of previous literatures. The spalling phenomenon occurs when several factors such as sharp temperature increase, high water content, low water/cement ratio and local stress concentration in material combine in the concrete material. On the basis o f the factors, the preventing methods from the spalling are known as decrease of temperature increase, preventing of concrete fragmentation and fast drying of internal moisture. In this study, the controlling method of water content below some critical value was proposed as the most effective spalling-preventing method among the spalling-preventing methods. The spalling phenomenon can be prevented by adjusting the water content in the high strength concrete. Therefore, an enforced drying method is needed to decrease the water content below a critical value. Additional experimental data should be generated to determine the critical value of water content for preventing the spalling.