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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
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Fire Science and Engineering
Journal Basic Information
Journal DOI :
Korea Institute of Fire Science and Engineering
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Volume & Issues
Volume 24, Issue 6 - Dec 2010
Volume 24, Issue 5 - Oct 2010
Volume 24, Issue 4 - Aug 2010
Volume 24, Issue 3 - Jun 2010
Volume 24, Issue 2 - Apr 2010
Volume 24, Issue 1 - Feb 2010
Selecting the target year
A Combustion Analysis of Surface Fuel Burning Experiment According to Density Variation
Kim, Eung-Sik ; Kim, Jang-Hwan ; Kim, Dong-Hyun ; Park, Hyung-Ju ; Kim, Jeong-Hun ;
Fire Science and Engineering, volume 24, issue 1, 2010, Pages 1~7
This paper shows combustion characteristics of fallen leaves of Quercus variabilis and Pinus densiflora according to variation of mass densities. Combustion temperature, mass loss rate, flame height, duration of combustion and velocity of hot gas are measured and analyzed. For the experiment 10cm heighted baskets with varying diameters of 20, 30, 40 and 50cm are used for the combustion and the pilot ignition is carried on the top of the fuel. In case of Pinus densiflora mass loss rate, duration of flame, flame height and combustion time become larger as the mass density and diameter of basket increase, on the other hand Quercus variabilis shows saturation characteristics in mass loss rate and flame height. Velocity of hot gas is proportional to flame height.
A Study on the Consideration Factors for the Calculation of Elevator Evacuation Time
Kim, Hak-Joong ; Park, Yong-Hwan ;
Fire Science and Engineering, volume 24, issue 1, 2010, Pages 8~14
It is more important to study for reducing the evacuation time of occupant in fire, because the building has been taller and deeper. It has known that elevator was not safe in fire situation. So, the using elevator for evacuation has been prohibited. But the study of elevator evacuation is progressed with designing the elevator safe from flame and smoke. This study analyze the consideration factors for the calculation of elevator evacuation time. The factors for elevator evacuation calculation is starting time, round trip time. And round trip time is divided into standing time and travel time. The elevator evacuation time can be calculated by compounding these factors and adding the efficiency. For using elevator to evacuate, we need additional study for smoke control, compartment, water proof and safe electric power supply.
Automatic Fire Detector Spacing Calculation for Performance Based Design
Park, Dong-Ha ;
Fire Science and Engineering, volume 24, issue 1, 2010, Pages 15~23
Placement method for fire detectors prescribed in current fire safety regulation is just about placing a prescribed number of detectors according to the areas. However, this regulation has no scientific basis and standards from foreign countries are just introduced and fire detectors are installed complying with them. There are two standards in designing fire protection systems; Prescriptive-Based Design that follows stipulated regulations like fire safety standards and Performance-Based Design based on engineering knowledge such as fire dynamics, structural dynamics, mechanics of materials, fluid mechanics, and thermo dynamics. Recently, Fire Protection System Construction Business Act was revised so that fire protection systems can be designed using Performance-Based Design method ('05. 8. 4), though the method has not activated until now. In addition, the enforcement decree defines the range for specific objects of fire protection to which Performance-Based Design is applied ('07, 1. 24). At the moment, by manufacturing simulator so that formulas can be introduced and calculated with software in order to install fire detector of automatic fire detection systems keeping optimized distance, comparing the results with the state of fire detector placed according to Performance-Based Design and analyzing them, this study was intended to settle Performance-Based Design method in the future.
A Study on the Development of Integrated Type Fire Alarm Control Panel for Ubiquitous Environment
Park, Se-Hwa ;
Fire Science and Engineering, volume 24, issue 1, 2010, Pages 24~30
An integrated type fire alarm control panel which is for the purpose of the ubiquitous environment application is reported. For the ubiquitous environments, mainly three additional functions upon its inherent capabilities are implemented. That is, wireless technology with ZigBee capability is applied for the interface of ZigBee detectors. Camera images can be displayed in the fire alarm control panel in which images are transferred via ethernet. For the time synchronization of the distributed fire alarm control panel, GPS module is introduced and implemented in the system.
A Study on the Economic Utility Analysis of Sprinkler System Installation
Kim, Yong-Dal ; Choi, Young-Hwa ; Yoon, Myung-O ;
Fire Science and Engineering, volume 24, issue 1, 2010, Pages 31~39
Although the subject of sprinkler installations in Korean regulations is less strict than in other advanced countries, many building owners and managers tend to install sprinklers only in the types of buildings designated by law or create building designs for which sprinkler installation standards are not applied. This is because priority is given to cutting installation expenses rather than providing building fire safety. In this study, the benefit is estimated for various expenses from installation and maintenance of sprinklers as an investment. As a result of comparing sprinkler system installation expense and the financial benefit by efficiency analysis, the payback period is 1/20 of the building life expectancy and its efficiency is twice the expense. Therefore, installation of sprinklers by regulation has financial efficiency and it is desirable to broadly encourage the installation of sprinklers.
An Experimental Study on the Fire Resistance Capacity of Asymmetric Slimflor Beam
Park, Won-Sup ; Kim, Heung-Youl ; Kim, Hyung-Jun ;
Fire Science and Engineering, volume 24, issue 1, 2010, Pages 40~45
Asymmetric Slimflor Beam had been unveiled with Thor beam (Hat beam) in Sweden since the late 1970s and had been developed by British Steen and SCI. In the major advanced countries in Europe after the early 1990s have interested in and developed this method, it has been concrened as the absence of hot-rolled section steel in the United Kingdom and welded of asymmetric section steel in Finland in the 2000s. It can be increase total floor area about 10%, save the interior and exterior materials, reduce the waste through reduction of the floor height. And it has more excellent fire resistance performance because less exposed than a regular composite steel beam in fire. This study is purpose that, a fire resistance performance of the Asymmetric Slimflor Beam in fire, it compared the temperature range with deflection of structure by fire behavior and load ratio of structure through change the shape of the steel cross-section in standard fire condition.
A Study on the Development of the Photo-electric Single Station Smoke Alarm of Low Power Consumption for Residential Fire Prevention
Park, Se-Hwa ; Cho, Jae-Cheol ;
Fire Science and Engineering, volume 24, issue 1, 2010, Pages 46~53
This is a case report of a photo-electric single station alarm for residential fire prevention. The detector was developed for the certification in Japanese market which is more than 100 times bigger than Korean market. A comparison and review for test standard owned by KFI (Korea Institute of Fire Industry & Technology) and JFEII (Japan Fire Equipment Inspection Institute) respectively is also conducted. The detector alarms with a buzzer and an indicating LED. Operating period and time in alarm, low battery and fire situation is stated. The electronics circuit part to reduce its current and the detector's characteristics are described. It is explained that the measured current and experimental result of the battery discharge can meet the 10 years operation.
The Legal Problems and Improvement in the Performance Based Design of Fire-fighting
Yi, Jong-Yeong ; Baek, Ok-Sun ;
Fire Science and Engineering, volume 24, issue 1, 2010, Pages 54~63
The buildings relevant to the law should be designed performance-based necessarily according to "Fire-Fighting System Installation Business Act" amended, January 1. 2009. Performance based design means that building design reflects structure, size, purpose, and building capacity to achieve the most effective design of fire-fighting system. Performance based design has meaning to buildings that it is insufficient to control fire-fighting by previous law-oriented design or inappropriate by uniform design, because of buildings becoming bigger and higher. However, it is difficult to implement the system actually, because laws relevant to fire-fighting prescribe only the object and the required qualifications of performance based design, but they don't have rules to enforce performance based design for specific parts. This study suggests improvements for a desirable implementation of performance based design in legal aspects, by analyzing the current legal regulations related to performance based design.
An Analysis of the 119 EMS System using the Standardized Record on the Efficient Emergency Medical Information Delivery Media
Rho, Sang-Gyun ;
Fire Science and Engineering, volume 24, issue 1, 2010, Pages 64~71
Records of 255 patients was analyzed statistically according to the contents of the record form. T patients' records were collected through the visit of emergency department in one hospital by the 119 Emergency Medical Services system from January 1 to February 8, 2009. In conclusion, the total entry was the investigation of 119 ambulance run report in 62.1% of subjects. The highest record of receiving hospital item was 100.0% and the lowest record of medical control item was 0.4% of subjects. Increasing the entry of 119 ambulance run report in efficient emergency medical information delivery media needed to suggest that increasing the number of specialists on the staff, medical staffs have an active interest and feedback, rule to item arrangement of prehospital ambulance run report, continuous education in the importance of record.
A study on the Design of a u-railroad Disaster Prevention System for Urban Disaster Prevention Management
Ham, Eun-Gu ; Roh, Sam-Kew ;
Fire Science and Engineering, volume 24, issue 1, 2010, Pages 72~80
This study suggests ubiquitous railway disaster prevention system that gearing Ubiquitous Sensor Network system information take to the subway fire accident information which emergency response procedure as occurring subway fire accident scenario. Also it is proposed that emergency response system though fire scenario. collected Information was analyzed each system over providing information and it is designed to exchanging information structure though relation system. The ubiquitous railway disaster prevention system basically consists by four unit stages as prevention, preparedness, response and recovery system. Especially, in this system can supply real time accident information to the relevant government offices and public through forecasting and warning system by utilizing recognition of the five senses in case of accident. also, it is build that to make decisions as linking 2-dimension and 3-dimension space information interface of ubiquitous sensor networks and expected scenarios.
Cost Analysis for Fire Protection on Structural Members of Residential Steel Building using Fire Engineering Design
Kwon, In-Kyu ; Chung, Yeong-Jin ;
Fire Science and Engineering, volume 24, issue 1, 2010, Pages 81~89
In general, fire resistance is determined through the building' uses and stories. But recently a fire engineering design that is done by the calculation of design fires from the fire cell and an evaluation of stabilities for structural behavior at fire condition have applied to almost of countries as a major alternative against a prescriptive fire design. To adopt and utilize the fire engineering design into Korea, at first, we evaluated structural stability of 21st stories steel residential building at fire condition through fire engineering design and secondly the fire protection cost was analyzed with fire engineering design method and the prescriptive one, respectively. No fire protection materials for satisfaction of building law at structural members such as columns and beams were needed and about 90 % of fire protection cost was saved.
A Study on the Effective Fire and Smoke Control in Semi-Transverse Ventilation
Jeon, Yong-Han ; Kim, Jong-Yoon ; Seo, Young-Ho ; Yoo, Oh-Ji ; Han, Sang-Pil ;
Fire Science and Engineering, volume 24, issue 1, 2010, Pages 90~94
In this study it is intended to review the moving characteristics of smoke by performing visualization simulation for the calculation of the optimal smoke exhaust air volume in case a fire occurs in tunnels where transverse ventilation is applied, and to obtain basic data necessary for the design of smoke exhaust systems by deriving optimal smoke exhaust operational conditions under various conditions. As a result of this study, if it was assumed 0 critical velocity in the tunnel, the smoke exhaust air volume was limited within 250 meter in the road-tunnel disaster prevention indicator and the exhaust efficiency was from 55.1% to 95.8% in the result of this study. If the wind velocity is in the tunnel, the exhaust rate intends to increase rapidly and the exhaust efficiency is decreased. In addition, if the wind velocity is increased, the exhaust rate should be increased in compared with the generation rate of smoke in maximum 1.8 or 1.04 times. In this study, when the wind velocity is in the tunnel, the limited exhaust rate is
. And if it was assumed 1.75 m/s critical velocity in the tunnel, the exhaust rate would be defined
= 80 + 5Ar).
A Study on Characteristics of Roof 'Jucsim' Structure Combustion Real Scale Fire Test on Wooden Structure Heritage Building
Roh, Sam-Kew ; Ham, Eun-Gu ;
Fire Science and Engineering, volume 24, issue 1, 2010, Pages 95~102
The combustion characteristics of roof 'Jucsim' structure was analysed using real scale fire test on wooden structure heritage building. the fire test model was made to consider roof timberling internal structure for a Sunglemun. Structure of test body layed lime, soil, 'Jucsin' and ceiling board excepting roof tile to find heat propagation process by setting thermocouples. The first test to find fire growth and heat propagation process in the part of ceiling. The second test organized to find the efficiency of fire proof paint between ceiling board and inside of Jucsim structure. The third test try to get the performance level of fire proof fabric with the same manner. The result showed from the test proof the heavy smoke exposure with limited effect of fire proof paint however, reliable fire resistance effect showed in case of fire proof fabric.
Forest Fire Ignition Patterns Caused by Farming Activities
Koo, Kyo-Sang ; Lee, Byung-Doo ; Lee, Myung-Bo ; Lee, Si-Young ; Kim, Jeong-Hun ; Park, Houng-Sek ; ParK, Geon-Young ;
Fire Science and Engineering, volume 24, issue 1, 2010, Pages 103~110
Farming activity was the second cause of forest fire following the carelessness. In this study, 74 forest fires caused by farming activity and waste burning in 2009 was investigated for analyzing ignition patterns. The main cause to bring about forest fire was the farming waste burning as 25 cases, burning of farming waste matter after product and household waste burning were the second causes as 19 cases. Landcovers which transfer flame from ignition point to forest were fallow field graveyard, field fruit farm, field levee fallow field. The average distance between ignition point and forest sleeve was 19 m, and the maximum distance was 130 m. The probability of forest fire ignition was high in the 100 m buffer zone from the forest sleeve that is the prohibition rule of fire use for forest fire prevention at the forest fire season.
The Study of Fire Detector Circuit with Wireless Communication
Baek, Dong-Hyun ; Kim, Jang-Won ;
Fire Science and Engineering, volume 24, issue 1, 2010, Pages 111~115
For the development of fire detector equipments that was fused independent type of fire detector and a wireless communication function, this paper adopted a signal processing method of an independent formation fire sensor by a ZigBee communication method, and it was designed that the combinations of fire detector and wireless communications network were enabled. When a fire occurred, output voltage of a fire detector was 0.4 V, the movement pulse width was
, and that was confirmed by an experiment. When it has lookout state, LED worked by 30 s cycle and working current is 0.12 mA. When a fire occurred, LED worked by 0.5 s cycle and working current was 7 mA, and through this experiment of power source, Chamber tester, smoke tester,IRED, LED lighting, the propriety of the method that we showed in this paper confirmed.
Ignition Characteristics of n-Dodecane Fuel Droplet on a Hot Surface
Kim, Sung-Chan ;
Fire Science and Engineering, volume 24, issue 1, 2010, Pages 116~121
The present study has been performed to investigate the ignition characteristics of a n-dodecane fuel droplet on the hot surface. Simplified bench scale test setup was built to examine the effect of air flow on the ignition temperature of fuel droplet. IR pyrometric sensor was used to measure the surface temperature, the measured temperature using IR pyrometer was directly compared with k-type thermocouple. The ignition of n-dodecane fuel droplet was divided into two stage - cool flame and hot flame - with the air flow rate except the case of air flow rate 3.0 lpm. The ignition temperature and probability was greatly affected by the air flow rate and the MHSIT of the present study was about
for air flow rate of 0.5 lpm.
A Study on the Combustion Characteristics of Phenol Foam
Park, Hyung-Ju ;
Fire Science and Engineering, volume 24, issue 1, 2010, Pages 122~127
The combustion characteristics of phenol foam were analysed using variable external irradiation level (20, 25, 35, 50, and
) and in the mixture gas of oxygen/nitrogen. The oxygen index were carried out from the oxygen index tester (KS M ISO 4589-2) and ignition time, critical heat flux, and mass loss rate were carried out from the mass loss calorimeter (ISO 5660-1). As the results of this study, the critical heat flux and average mass loss rate were
respectively at the variable external irradiation level. And the limited oxygen index were 45.1% in mixture gas of oxygen/nitrogen. In conclusion, we knew that phenol foam had the best performance than other foam materials in fire safety from all data of this study.
Effect of Weight of Fire-protective Equipment for Physical Activity Ability
Huh, Man-Dong ; Bang, Chang-Hoon ;
Fire Science and Engineering, volume 24, issue 1, 2010, Pages 128~133
The aim of study intends to investigate effect of weight of fire fighting protective equipment for physical activity ability and to provide the base data for the safety of firefighter. The results of the study are as follows. The maximum all-out time is short about 18.8% in weight-jacket case which weight is same with fire-protective equipment than case of gym suit. The maximum oxygen consumption increased 17.6% in gym suit case than case of weight-jacket. The maximum heart rate is high 5.4% in gym suit case than case of weight-jacket.
Numerical Study on the Effect of Range Surrounding Environment on Detecting Time for Cooking Oil Fire in Kitchen
Lee, Jin-Woo ; Ko, Gwon-Hyun ; Ryou, Hong-Sun ; Jang, Yong-Jun ; Jung, Woo-Sung ;
Fire Science and Engineering, volume 24, issue 1, 2010, Pages 134~139
According to the "Yearbook of disaster response, fire safety and fire statistics (NEMA: National Emergency Management Agency)", approximately 34% of all fire is interior fire such as hotel, restaurant and residence and more than 53% of which is occurring in the kitchen. The evaluation of fire extinguishing system in the kitchen is performed in accordance with the "Korea Fire Equipment Inspection Standard (KOFEIS 0101-1)" which is using one environmental condition. However, only using one environmental condition is not enough to evaluate the performance of the automatic fire extinguisher in kitchen fire. So the study of fire detecting characteristic about various environmental condition needs. In this study, the numerical analysis is carried out about detecting time characteristic for various range's surrounding environment. As a result, it showed up to 100 s difference in the detection time depending on the position of the range. And detecting time also showed difference for on-off hood operation. From this results, it can be verify and improve the evaluation standard for the fire extinguishing system in kitchen fire.