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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 25, Issue 6 - Dec 2011
Volume 25, Issue 5 - Oct 2011
Volume 25, Issue 4 - Aug 2011
Volume 25, Issue 3 - Jun 2011
Volume 25, Issue 2 - Apr 2011
Volume 25, Issue 1 - Feb 2011
Selecting the target year
Analysis of Propagation of Deflagration and Fire Cause in the Busan lndoor Shooting Range
Song, Jae-Yong ; Sa, Seung-Hun ; Nam, Jung-Woo ; Kim, Jin-Pyo ; Kim, Dong-Hwan ;
Fire Science and Engineering, volume 25, issue 3, 2011, Pages 1~7
This paper studied analysis of deflagration rapid propagation of burning through only a few second and fire cause into the Busan indoor shooting range. We carried out combustion experiment of sound-absorbing materials extensively used, to analyze propagation path of burning in indoor shooting range. From the experimental results, general sound-absorbing materials were rapid burned simultaneously with ignition and in case of attached gunpowder residue, they were burning about tripled by comparison with general sound-absorbing materials. The incombustibility sound-absorbing materials had all gone out simultaneously with ignition, but they were burning similar to general type materials in case of attached gunpowder residues. In order to analysis of the cause of fire, we calculated kinetic energy of bounced off bullet, from result, if the bounced off bullet impacted gunpowder residues, the gunpowder residues were possible to ignite by the bullet.
An Experimental Study on the Radiant Heat of the Firedoors in Fire
Jeon, Jun-Pyo ; Jeon, Soo-Min ; Cho, Nam-Wook ; In, Ki-Ho ; Rie, Dong-Ho ;
Fire Science and Engineering, volume 25, issue 3, 2011, Pages 8~13
The fire compartments which are composed of fire walls and fire doors for buildings are compulsorily required to minimize the fire damage in Korea. The performance standards of fire doors for compartments are regulated by the notification of the ministry of land, transport and maritime affairs and are mainly about the Integrity of the doors not insulation. In this study, we measured the radiant heat of six different kinds of fire doors in fire and analyzed the results and presented the reasons of the need to consider adding the radiant heat standard for fire doors to the notification.
A Study on the Arson Characteristic by the Economic Variable
Park, Nam-Kwun ; Yoon, Myong-O ;
Fire Science and Engineering, volume 25, issue 3, 2011, Pages 14~19
This research was conducted with goals to reducing arson and finding its relationship with social phenomenons. Especially, unlike previous researches, focus has been on the economic indicators, and the effect of economic indicators on arson. As a result, we were able to find the relationship between economic indicators and arson. When growth rate and consumer index prices decrease, the economy stagnates and thus incidents of arson increases. In contrast, when growth rate increases and consumer index prices increase, the rate in which arson occurred decreased. Also, we have found that when personal debt rate increases, the numbers of arson incidents increased as well.
A Study on Combustion Characteristic of Sponge Type Sound-absorbing Materials
Song, Jae-Yong ; Sa, Seung-Hun ; Nam, Jung-Woo ; Kim, Jin-Pyo ; Park, Jong-Taek ; Lee, Doo-Hyung ;
Fire Science and Engineering, volume 25, issue 3, 2011, Pages 20~27
This paper studied combustion characteristics of the sponge type sound-absorbing materials extensively used on building interior. To estimate of the combustion characteristics, we carried out combustion experiment of general type and incombustibility type sound-absorbing materials. And then to evaluate the suitability of the sponge type sound-absorbing materials, we measured heat release rate (HRR) and smoke density (Ds) of the sound-absorbing materials using by a cone-calorimeter. From the combustion experimental results, general type sound-absorbing materials were rapid burned simultaneously with ignition and the incombustibility type sound-absorbing materials had all gone out simultaneously with ignition. Measured results of HRR and Ds were not satisfied KS F ISO 5660-1 and IMO FTP Code, form the results, the sponge type sound-absorbing materials were ill-suited for using building interior.
A Study on Evaluating the Fire Safety of the Regulation of Escape and Fire-Prevention from Enacting to Now - Focusing on the Hotel Building -
Lee, Se-Myong ; Yoon, Myong-O ;
Fire Science and Engineering, volume 25, issue 3, 2011, Pages 28~41
Regulation of Escape and fire-prevention of Building of South Korea were enacted as a part of building codes in 1962. Since it was enacted, the law has gone through many changes. In this study, evaluated the fire safety of the law about the case of a hotel that the fire risk are expected to be higher whenever it was changed. As a result, the current law has gotten better in tire safety since it was enacted. However, especially it could be confirmed that the evacuation safety is insufficient in the lower level of hotel building. In the case of accommodation, because the occupants become aware of fire lately, they have not enough time to escape. Therefore, this study suggests that it is needed to come up with an effective counterplan about the interior finish materials, fire door and fire compartments that the smoke layer descending time is longer.
A Study on Necessity of Expansion and Reorganization of Courses Related to Fire Investigation
Choi, Jin-Man ; Kim, Kil-Hwan ; Lee, Chang-Woo ; Choi, Don-Mook ;
Fire Science and Engineering, volume 25, issue 3, 2011, Pages 42~50
To foster fire investigation professionals and expand career opportunities for graduates of fire science majors, it is extremely important to expand and reorganize courses which are related to fire investigation. Only 30 percent of universities have fire investigation related courses, and the courses only offer theoretical materials. As a result, it has a great limitation to teach essential knowledge which is required at a fire scene. This study suggests to classify fire investigation-related-courses in to fire investigation course and fire identification course. In addition, the study proposes ways to standardize curricula which enables students to acquire Certified Fire and Explosion Investigator (CFEI).
Full-scale Fire Suppression Test for Application of Water Mist System in Road Tunnel
Han, Yong-Shik ; Choi, Byung-Il ; Kim, Myung-Bae ; Lee, Yu-Whan ; So, Soo-Hyun ;
Fire Science and Engineering, volume 25, issue 3, 2011, Pages 51~56
The full-scale experiments are carried out to investigate the fire suppression characteristics of water-based fire fighting systems in a road tunnel. Applied systems are the low-pressure water spray system at 3.5 bar and the high-pressure water mist system at 60 bar. The water flow rate of the high-pressure system is one sixth only of the water spray system. A passenger car and a heptane fuel pan with area of
are used as fire sources. A blower system is installed at the tunnel exit to realize the longitudinal ventilation conditions (0.9~3.8 m/s) in the tunnel. Temperatures from the fire source to the down-stream direction are measured by K-type thermocouple trees. The experimental results show that the cooling effect of the high pressure water mist system in the test conditions were equivalent to that of the low pressure water spray system for B-class fire.
A Study on Combustion Characteristics of Flame Retardant Treated Pinus Densiflora
Choi, Jung-Min ; Ro, Ho-Seung ; Jin, Young-Hwa ;
Fire Science and Engineering, volume 25, issue 3, 2011, Pages 57~62
The combustion characteristic was evaluated for Pinus densiflora, used as a building material in Hanok, which were treated with two different flame retardant method. The specimen was brushed with flame retardant liquid two or three times and then let the specimen dehydrated during 24 h for spreaded treating. And the other specimen was soaked in the liquid for 72 h. The test methods were inflammability test using meker burner and heat release rate test using cone calorimeter. As a result for the tests, flame retardant treated specimens met the requirements of the inflammability and the spreaded treated method was more efficient than immersed method. The spreaded treated specimen had lower combustive properties than immersed specimen in TTI (time to ignition), PHRR (peak heat release rate), MLR (mass loss rate) and THR (total heat release).
An Experimental Study on the Fire Risk of Electric Heaters According to Contact of Flammable Materials
Lee, Sung-Ryong ;
Fire Science and Engineering, volume 25, issue 3, 2011, Pages 63~71
In this study, it was evaluated the fire risk of an electric heater as representative seasonal appliances. Two type of electric heaters were used in experiments. When electric heaters were operated, temperature variation was measured around the heater. Internal structure was understood by Nondestructive inspection. It was evaluated the tire risk of electric heaters, when flammable materials were positioned ear a heater. It was also estimated the probability of a tire in case of malfunction of a safety tip-over witch. When a heater was operated in a normal condition, temperature was maintained under
around the heater. The possibility of a fire is very high, when a heater is covered with flammable materials or malfunction of safety parts (safety tip-over switch, anti-overheating devices).
Study of the Effective Management and Care System on in-Use Fire Fighteris Turnout Gear
Son, Bong-Sae ; Choi, Kye-Youn ;
Fire Science and Engineering, volume 25, issue 3, 2011, Pages 72~77
This study aims to provide fundamental information required to establish an efficient maintenance and management system for fire fighting clothing which takes into account the domestic fire protection environment and situation. There aren't any detailed regulations and appropriate pre-inspection systems which would be required for proper maintenance of fire fighting clothing, as well as any test methods to determine the life spans of fire fighting clothing properly. Thus, this study tries to analyze the problems in use of fire fighting clothing and its maintenance situation and summarize overseas maintenance situation for fire fighting clothing. As a result, it is found that domestic fire fighting clothing is washed, repaired, and stored without any systematic management regulations. It is also found that the life spans of fire fighting clothing are determined, based on part of overseas management regulations on fire fighting clothing. Therefore, it is imperative to set up efficient management regulations and test methods for fire fighting clothing which would be required for efficient use of the fire fighting budgets and the life safety of fire fighters.
An Experimental Study on the Charring Rate of Solid Sawn Timber Exposed to Fire
Yeo, In-Hwan ; Park, Kyung-Hoon ; Cho, Kyung-Suk ; Min, Byung-Yeol ; Yoon, Myung-O ;
Fire Science and Engineering, volume 25, issue 3, 2011, Pages 78~84
In this study, we have measured the charring rate of solid sawn timber as a preceding step for develop performance based fire safety design method of wood framed building structures. The follows are the summary of fire test results carried out with
mm cross-section Douglas-fir in varied of thickness and grain directions. I) When the timber thickness increase under same dimension, the charring rate decreases gradually. It is seemed the charring layer up on a thickness roles as a insulation, gives combustion delaying time to specimen. 2) The charring rates measured at different depths (10, 20, 30, 40 mm) in timber which varying thickness (20, 40, 80, 120 mm) when exposed maximum 1 hour standard fire increase by 30 mm depth, but decrease at 40 mm. It is seemed the minimum charr layer should be 30 mm for having role of insulation. 3) The charring rate of cross section surface (direction of perpendicular to grain) was more high than that of grain direction. It can be explained by the cracks and gaps from greater charr contraction made more heat flux incident into timber.
Study on Measurement Method of Air Egress Velocity in Vestibule of Smoke Control System
Lee, Su-Kyung ; Hong, Dae-Hwa ;
Fire Science and Engineering, volume 25, issue 3, 2011, Pages 85~90
This study of the vestibule of pressurizing smoke control system installed in domestic high-rise buildings for evacuation in case of fire, when the door is open to forming characteristics of the air flow was analyzed using fire dynamics simulator and analyzed of variance. Vestibule which is compartment of the design condition, air flow in the exhaust damper was formed severe turbulence confirming preceding research. The door position is in the range of formed vortex, unsteady flow of air occurs at the point that the door could be confirmed. According to the NFSC 501A, door to symmetrically separate the average of 10 points or more as measured from the average of wind speed to do is based. Under these conditions, it is difficult to measure the characteristics of the upper air flow of upper points. so measuring points are subdivided by more than 64 points method presented in TAB because severe deviation of wind speed.
A Study on the Fire Resistance Performance of Wood Framed Lightweight Wall which Including a Middle Lintel
Yeo, In-Hwan ; Cho, Bum-Yean ; Min, Byung-Yeol ; Yoon, Myung-O ;
Fire Science and Engineering, volume 25, issue 3, 2011, Pages 91~98
This study is about fire resistance performance of wood framed lightweight wall including a middle lintel as a traditional wall form in Korea. The target wall is non-loadbearing system which constructed with
) wood frame and fireproof gypsum board covering, including a middle lintel made of
mm section glue-laminated timber. As a test results, all specimens have showed fire resistant performance over 90 minutes and tests were maintained until flame occuring on Specimen-l, 2, 3 at 91 min, 97 min and 98 min respectively. Fire resistance of the heat side gypsum board was 45 minutes and charring rate of middle lintel was equivalant with that of usual timber. The wood stud inside wall system showed relatively quick combution characteristic when exposed to high temperature with no temperature rising delaying time caused by moisture evaporation because of the dehydration preceded during the early period of fire side gypsum board resist to heat.
A Study on Combustion Experiments of Color Nonwoven
Min, Se-Hong ; Im, Sang-Bum ;
Fire Science and Engineering, volume 25, issue 3, 2011, Pages 99~106
Experiments of Cone calorimeter test and Lift spread flame apparatus test are carried out in order to appraise fire hazard in color nonwoven used mostly on the spot in construction works. As the result, in color nonwoven combustibility is discovered not firing flame in surface, but firing under state of combustible gas occuring in the state of melting. In the case of Lift spread flame apparatus test, color nonwoven is very brittle which almost no flame spread owing to contracting and break by firing strength. The following data are agree with basis: total heat release is 2.66 MJ/
, limited combustible material (10 min) of incombustible rating appraisal in interior material of building, and incombustible materials (5 min) 8 MJ/
in spite of the above data mentioned, those data are only as basis of interior finish, and so I cannot judge color nonwoven have incombustible rating retain through the above data. Accordingly, the basis of incombustible rating and experiment method about exterior finish must be arranged also.
A Study on Firing Risk Assessment of Film Manufacturing Process
Min, Se-Hong ; Heo, Won-Il ;
Fire Science and Engineering, volume 25, issue 3, 2011, Pages 107~112
We have considered the fire hazard by the static in anti-static film manufacturing factory on this study. Solvents that the flash point as ethanol, methanol and iso-propyl alcohol is low are used on the manufacturing process of anti-static film, and the minimum ignition energy of these solvents is ignited easily despite less discharge energy form 0.16 mJ to 0.65 mJ. After the static electric potential produced on each of the manufacturing plants was measured, electric potential on films of paste board is measured form 17 kV to 20 kV. But this exceeds 5 kV, which is electrifiable of objective of nonconductor for fire & explode protection. Therefore, We figure out the fire hazard was high by a static discharge in anti-static film manufacturing factory.
The Measurement of Minimum Flash Point Behaviour (MFPB) for Binary Mixtures
Hong, Soon-Kang ; Yoon, Myung-O ; Lee, Sung-Jin ; Ha, Dong-Myeong ;
Fire Science and Engineering, volume 25, issue 3, 2011, Pages 113~118
The flash point is an important indicator of the flammability of a chemical. The minimum flash point behaviour (MFPB) is exhibited when the flash point of a mixture is below the flash points of the individual components. The identification of this behaviour is critical, because a hazardous situation results from taking the lowest component flash point value as the mixture flash point. In this study, the flash points for the n-butanol + n-decane and n-octane + n-propanol systems which exhibit MFPB, were measured by Tag open-cup apparatus. The experimental data were compared with the alues calculated by the Raoult's law, the van Laar equation and the Wilson equation. The calculated values based on the van Laar and Wilson equations were found to be better than those based on the Raoult's law. It was concluded that the van Laar and Wilson equations were more effective than the Raoult' law at describing the activity coefficients for non-ideal solution such as the n-butanol + n-decane and n-octane + n-propanol systems. The predictive curve of the flash point prediction model based on the Wilson equation described the experimentally-derived data more effectively than was the case when the prediction model was based upon the van Laar equation.
A Study on the Analysis of Smoke Density Characteristics for Wood-Plastic Composites
Shin, Baeg-Woo ; Song, Young-Ho ; Rie, Dong-Ho ; Chung, Kook-Sam ;
Fire Science and Engineering, volume 25, issue 3, 2011, Pages 119~124
In this study, we measured the smoke density characteristics to find the fire risk of Wood-Plastic composites (WPCs) which are one of spotlighting materials for landscape architecture and residential construction material with the cone calorimeter tester (by ISO 5660-2) and the smoke density tester (by ASTM E 662). In addition, the identical test was implemented to compare the smoke density characteristics between the red pine and the antiseptic wood. The result of cone calorimeter test showed that emissions of carbon monoxide, carbon dioxide and total smoke production rate of WPCs were higher than those of red pine and antiseptic wood. And the result of smoke density test showed that maximum specific optical smoke density(Dm) of WPCs was higher than that of red pine and antiseptic wood as well.