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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
Editor in Chief :
Volume & Issues
Volume 27, Issue 6 - Dec 2013
Volume 27, Issue 5 - Oct 2013
Volume 27, Issue 4 - Aug 2013
Volume 27, Issue 3 - Jun 2013
Volume 27, Issue 2 - Apr 2013
Volume 27, Issue 1 - Feb 2013
Selecting the target year
Numerical Analysis on Pressurization System of Smoke Control in Consideration of Stack Effect
Kim, Jung-Yup ;
Fire Science and Engineering, volume 27, issue 4, 2013, Pages 1~6
DOI : 10.7731/KIFSE.2013.27.4.1
When the pressurization system that uses difference of pressure for smoke control is designed, the factors influencing on the pressure field in building should be applied to design process and the stack effect is one of the main factors. Numerical analysis based on network model in 20-story building is carried out to analyze the pressurization system of smoke control in consideration of stack effect. Calculations are conducted for three conditions, that is, stack effect only, pressurization only and stack effect plus pressurization. Results including the detailed pressure field and flow rate at each floor are represented and the stack effect are effectively visualized. Meanwhile, the pressure of stairwell is increased as much as the summation of the stack effect and pressurization, and the problem induced by rise of pressure is pointed out.
A Study on the Properties of SM 400 for Evaluation of Structural Stability at High Temperature
Kwon, In-Kyu ;
Fire Science and Engineering, volume 27, issue 4, 2013, Pages 7~12
DOI : 10.7731/KIFSE.2013.27.4.7
Recently, the risk of fire outbreak is going up because of newly developed combustible materials are intended to apply more. Especially the steel framed structure can lose its load-bearing capacity when it is exposed to higher temperature condition such as a fire. So the pre-evaluation of fire resistance of the structure is very essential that the mechanical properties of yield strength and elastic modulus and thermal properties such as conductivity and linear expansion be required. To get the databases for SM 400 or welding structural steels at high temperature, various temperature conditions were used for deriving the yield strength, elastic modulus, linear expansion, and conductivity and the results were compared to those of SS 400, ordinary structural steel, respectively.
A Comparison Study on Fire Water Supply Duration and Capacity of Water Based Fire Suppression System of the United States, Japan, China and Korea
Min, Se-Hong ; Nam, Yu-Hyun ;
Fire Science and Engineering, volume 27, issue 4, 2013, Pages 13~20
DOI : 10.7731/KIFSE.2013.27.4.13
Buildings in Korea have been getting higher recently and been being changed environmentally since the Korean fire standard was released in 1968. It should be established to make a appropriate correspondence of fire fighting against the those environmental changes. Most of all, fire water capacity which is basis of fire fighting service is a very significant factor. In this paper, the Korean fire water capacity and fire water duration were compared with China, Japan and the United states. Furthermore, fire water capacity, fire water duration, flow rate were compared by hazard classification, occupant use, number of floor and area with water based fire suppression system. This study has been surveyed to show what are difference, similarity, advantage and disadvantage on fire water capacity in the Korean standard comparing with neighboring countries like China, Japan as well as the United states. This study could be found what level the Korean fire water capacity is. So it suggests about more developed standard on fire water capacity with the result of analysis and comparison.
Combustion Chracteristics of Wood Treated with Bis-(dialkylaminoalkyl) Phosphinic Acids
Jin, Eui ; Chung, Yeong-Jin ;
Fire Science and Engineering, volume 27, issue 4, 2013, Pages 21~26
DOI : 10.7731/KIFSE.2013.27.4.21
This study was performed to test the combustive properties of Pinus rigida plates treated with bis-(dimethylaminomethyl) phosphinic acid (DMDAP), bis-(diethylaminomethyl) phosphinic acid (DEDAP), and bis-(dibuthylaminomethyl) phosphinic acid (DBDAP). Pinus rigida specimens were painted in three times with 15 wt% bis-(dialkylaminoalkyl) phosphinic acid solutions at the room temperature. After drying specimen treated with chemicals, combustive properties were examined by the cone calorimeter (ISO 5660-1). It is supposed that the combustion-retardation properties were improved by the partial due to the treated bis-(dialkylaminoalkyl) phosphinic acids in the virgin Pinus rigida. Especially, the specimens treated with chemicals showed both the lower total smoke release rate (TSRR) (
) and lower
production (1.98~2.09 kg/kg) than those of virgin plate. However the specimens treated with chemicals showed both the higher peak mass loss rate (PMLR) (0.1250~0.1297 g/s) and higher 1st-smoke production rate (SPR) (0.0153~0.0167 g/s) than those of virgin plate. Compared with virgin Pinus rigida plate, the specimens treated with the bis-dialkylamimoalkyl phosphinic acids showed partially low combustive properties.
Measurement of the Device Properties of a Ionization Smoke Detector to Improve Predictive Performance of the Fire Modeling
Kim, Kyung-Hwa ; Hwang, Cheol-Hong ;
Fire Science and Engineering, volume 27, issue 4, 2013, Pages 27~34
DOI : 10.7731/KIFSE.2013.27.4.27
The high prediction performance of fire detector models is essentially needed to assure the reliability of fire and evacuation modeling in the process of PBD (Performance Based fire safety Design). The main objective of the present study is to measure input information in order to predict the accurate activation time of smoke detector into a Large Eddy Simulation (LES) fire model such as FDS (Fire Dynamics Simulator). To end this, FDE (Fire Detector Evaluator) which can measure the device properties of detector was developed, and the input information of Heskestad and Cleary's models was measured for a ionization smoke detector. In addition, the activation times of smoke detectors predicted using default values into FDS and measured values in the present study were systematically compared. As a result, the device properties of smoke detector examined in the present study showed a significant difference compared to the default values used into FDS, which resulted in the considerable difference of up to 15 minutes or more in terms of the activation time of smoke detector. The database (DB) on device properties of various smoke and heat detectors will be built to improve the reliability of PBD in future studies.
The Evacuation Characteristics of Elementary School Student According to Working of Single Unit Fireproof Shutter for Fires
Lee, Seung-Chul ; Hong, Yi-Pgo ; Kim, Sang-Il ;
Fire Science and Engineering, volume 27, issue 4, 2013, Pages 35~40
DOI : 10.7731/KIFSE.2013.27.4.35
This study investigated the evacuation characteristics of student of elementary school with single unit fireproof shutter. In particular, we gathered the data about fireproof shutter and checked the data. And we made comparison and did an analysis of the evacuation characteristics of elementary school student according to working of single unit fireproof shutter for fires. As a result, it took the last occupant 130 seconds to escape from the school with no fire shutter case. But it took time 190 seconds to escape when the single unit fireproof shutter worked. Some of elementary school students could not open the door installed on the shutter when the single unit fireproof shutter worked. Considering this circumstance, it can be led to time delays of escaping when the single unit fireproof shutter work. And many students can be exposed to the fire hazards. Therefore, the study on the power to open the door installed on the shutter must be done in the future.
Estimation of Pyrolysis Properties for Fire Propagation Analysis of Furniture Materials
Kim, Sung-Chan ;
Fire Science and Engineering, volume 27, issue 4, 2013, Pages 41~46
DOI : 10.7731/KIFSE.2013.27.4.41
The present study has been conducted to investigate the reaction kinetics and pyrolysis parameters for flame propagation analysis of furniture material components. TGA measurement for component materials such as MDF (medium density fiberboad) panel including coating material, synthetic leather and foam cushion are performed under maximum temperature of
and heating rate of
. The results of TGA have shown that the peak temperature of MDF panel was
and the initial peak temperature of coating material decreased by
. In the case of synthetic leather and foam materials, the reference temperature and reference rate depend on the type of polymer consisting the sample, the initial kinetic characteristics was classified into 2 categories of about
of reference temperature for the tested synthetic materials. The present study showed the pyrolysis parameters of reference temperature and reference rate proposed by Lyon to evaluate the pre-exponential factor and activation energy. The present study can contribute to improve the reliability of computational fire analysis and enhance the understanding of fire propagation phenomena based on the thermal properties study of material.
A Study on the Fire Organization of the Effectiveness Life Safety Services
Chae, Jin ; Woo, Seong-Cheon ; Go, Gi-Bong ;
Fire Science and Engineering, volume 27, issue 4, 2013, Pages 47~55
DOI : 10.7731/KIFSE.2013.27.4.47
The importance of fire safety services has increased expanding its services into prevention of danger and the reinforcement of safety services. The purpose of this study is to suggest a way for effective safety service by surveying fire fighters and residents of Gyeonggi Province and examining theories of safety services and actual status of 119 safety units. This study suggests the use of social capital by local community, establishment of cooperation between organizations, supports by citizens, cooperative activities by organizations, difference between emergency report and non emergency report and social safety net role of safety fire services.
Physiological Changes According to Workload Wearing Aluminized Firefighter's Protective Clothing
Bang, Chang-Hoon ; Lee, Jun-Kyoung ; Kwan, Jung-Suk ;
Fire Science and Engineering, volume 27, issue 4, 2013, Pages 56~60
DOI : 10.7731/KIFSE.2013.27.4.56
The aim of study intends to investigate physiological changes according to workload wearing aluminized firefighter's protective clothing and to provide the base data for the safety of firefighter. The results of the study are as follows. To increase work intensity 4 to 8 METs after experiment (20 min), mean skin temperature change (33.3 %), tympanic temperature change (57.1 %) heart rate (32.5 %), RPE (75.6 %) is statistically significantly higher and thermal Sensation, weight loss are not statistically significant. It was concluded that physiological changes of human body varied considerably by increase of workload wearing aluminized firefighter's protective clothing.
A Case Report of ROSC for Out-of Hospital Cardiopulmonary Resuscitation: Based on one Area Heart Saver
Bang, Sung-Hwan ; Kim, Jee-Hee ; Kim, Gyoung-Youg ; Roh, Sang-Gyun ;
Fire Science and Engineering, volume 27, issue 4, 2013, Pages 61~67
DOI : 10.7731/KIFSE.2013.27.4.61
This study was to investigate the cardiopulmonary resuscitation (CPR) outcomes and the clinical characteristics of outof- hospital cardiac arrest (OHCA) by analyzing date in one region. A total 8 patients, survived over 72 hours after ROSC. The cardiac arrest were caused by unknown (5 cases), cardiac disease (3 cases). The most common place of cardiac arrest was in the home (6 cases), witnessed cardiac arrest (8 cases), cardiopulmonary resuscitation by bystander was performed (4 cases), agonal respiration (3 cases). The initial electrocardiogram (ECG) showed ventricular fibrillation (VF) in 7 cases, pulseless electrical activity (PEA) other rhythms in 1 cases. Average time from call to scene arrival 6.1 minutes, call to hospital arrival 23.0 minutes, duration of total CPR was 8.7 minutes. The certificate of them were level 1 emergency medical technician (EMT) 6 cases, level 2 EMT 3 cases, total 3 members 7 cases. To improve the rate of survival for out-ofhospital cardiac arrest victims, development of continuous CPR educational program for lay rescue.