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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
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Fire Science and Engineering
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Journal DOI :
Korea Institute of Fire Science and Engineering
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Volume & Issues
Volume 28, Issue 6 - Dec 2014
Volume 28, Issue 5 - Oct 2014
Volume 28, Issue 4 - Aug 2014
Volume 28, Issue 3 - Jun 2014
Volume 28, Issue 2 - Apr 2014
Volume 28, Issue 1 - Feb 2014
Selecting the target year
Study on the Thermal Protective Performance Measurements of Fire Fighter`s Protective Clothing for Low Level Radiant Heat Exposures
Lee, Jun-Kyoung ; Bang, Young-Jun ; Bang, Chang-Hoon ; Kwon, Jung-Suk ;
Fire Science and Engineering, volume 28, issue 2, 2014, Pages 1~8
DOI : 10.7731/KIFSE.2014.28.2.001
Despite advancements in the development of synthetic fibers and materials that provide better insulation, fire burn injuries remain a significant issue. To ensure adequate protection, clothing and equipment must be selected on the basis of performance. There are different standards like ISO standards applicable to each of the various types of clothing used by fire fighters. But, in most cases, the tests are performed in the conditions of high heat flux exposure, the clothing material can be destroyed easily. Thus the effective way to investigate the protective performance for the low (radiant) heat flux conditions should be needed. Therefore improved RPP (Radiant Protective Performance) test method based on the onset of pain burn injury was suggested. Experiments were performed to verify the proposed method with current protective clothing for fire fighters and the transient heat transfer characteristics were identified, also. Moreover, several protective performance indices were acquired from experimental results to analyze their relations.
Optical Properties for Smoke Particles of Fire Sources According to UL 268
Jee, Seung-Wook ; Lee, Jong-Hwa ;
Fire Science and Engineering, volume 28, issue 2, 2014, Pages 9~13
DOI : 10.7731/KIFSE.2014.28.2.009
This paper is basic study for development of the photoelectric-type smoke detector that is able to distinguish fire source as well as fire detection. For this subject, Light source and sensor which is normally used for the conventional smoke detector are assembled for the optical chamber. Using 3 type of the test fires (the paper fire, the wood fire, the flammable liquid fire) this paper attempts to find optical properties of each fire. These 3 type of fire are used in the testing of smoke detector according to UL 268 standard. As the result, there are disambiguated between the paper fire and the wood fire in scattering and reason of extinction in the flammable liquid fire is different from that of the paper and the wood fire.
Validity Analysis of Scale Model Experiment for Wetting Agent Performance Evaluation
Kim, Nam-Kyun ; Lim, Kyung-Bum ; Rie, Dong-Ho ;
Fire Science and Engineering, volume 28, issue 2, 2014, Pages 14~19
DOI : 10.7731/KIFSE.2014.28.2.014
A current standard exist only on the surface tension in the current domestic wetting agent technology standards, so it is difficult to the performance evaluation of the wetting agent through the standard. So this study presents the optimized performance evaluation methods by scale model experimental equipment in order to present techniques for performance evaluation of wetting agents. The purpose of this study is to investigate validity of experimental results of the self-designed scale model experiment equipment by a comparative analysis of experimental results of the NFPA 18 experiment and the experiment using the self-designed scale model experiment equipment. As a result of a comparative analysis of experimental results of the NFPA 18 experiment that evaluate only the permeation performance on the contton and the experiment using the self-designed scale model experiment equipment that evaluate the permeation performance and fire extinguishing performance on wood flour, the discrimination of the permeation performance was confirmed in both the NFPA 18 experiment and the self-designed scale model experiment equipment. And a result of self-designed experiment equipment have clear discriminatory more than NFPA 18 by internal temperature measurement using the thermocouples.
Wetting Agent Performance Evaluation Using Scale Model
Kim, Nam-Kyun ; Lim, Kyung-Bum ; Rie, Dong-Ho ;
Fire Science and Engineering, volume 28, issue 2, 2014, Pages 20~25
DOI : 10.7731/KIFSE.2014.28.2.020
In this study, the extinguishing performance evaluation of wetting agent for wood crib was conducted by using a scale model equipment that we designed. To confirm the optimal conditions of the experiment, a test was changed amount of fire extinguishing water and the number of timber. As a result, the discrimination of the fire extinguishing performance was seen only when 20 pieces of wood and the extinguishing water of 100 mL were used. After evaluating the extinguishing performance of domestic and foreign wetting extinguishing agents under these conditions, a reignition was occurred in only when we used water. In addition, the discrimination of extinguishing performance was seen through the temperature distribution according to the time of watering. Based on the results of this experiment, this study is expected to be able to use as a basis on presenting a method of optimized performance evaluation of wetting extinguishing agent.
The Experimental Study for Radiant Heat Flux of Non-insulated Glazed Window in Fire
Park, Soo-Young ; Seo, Hee-Won ; Kim, Dae-Hoi ; Wang, Nam-Woong ; Yeo, In-Hwan ; Choi, Dong-Ho ;
Fire Science and Engineering, volume 28, issue 2, 2014, Pages 26~33
DOI : 10.7731/KIFSE.2014.28.2.026
Recently in Korea, the interest for using window and window-wall in building picks up due to the beauty and utilization of space. But, interior space of the buildings shall be compartmentalized by fire resistance structures in accordance with the Korean building codes to prevent the spread of flame and damage of human life in fire. In case of installing non-insulated glazed window in compartment wall, the flame spread to adjacent space and the damage of human life by radiant heat can occur in fire. On this study, to confirm the risk of radiant heat for non-insulated glazed window in fire, the fire resistance tests were conducted. The temperature rise and heat flux on unexposed space was measured and analyzed.
A Study on the Burning Characteristics of Interior Boards and Louvers
Nam, Dong-Gun ; Kim, Sung-Chan ;
Fire Science and Engineering, volume 28, issue 2, 2014, Pages 34~39
DOI : 10.7731/KIFSE.2014.28.2.034
It is necessary to enhance its availability and reliability of performance based fire design of building with various type of database such as experiments, survey and fire properties and so on. In order to utilize to the performance based fire design, the present study has been performed a series of experiments to investigate the burning characteristics of building materials for two types of interior board and three types of interior louver. The burning test has been also conducted for different thickness because it may show different characteristics of burning behavior such as flame spread rate and flame propagation time. The result shows that the effective heat release per unit mass of interior materials were almost constant with 15.3~16.9 MJ/kg regardless of its thickness while the peak heat release rate and maximum
concentration was varied with thickness.
A Proposal on the Pipe Schedule Sprinkler System of NFSC 103
Jeong, Keesin ;
Fire Science and Engineering, volume 28, issue 2, 2014, Pages 40~47
DOI : 10.7731/KIFSE.2014.28.2.040
Design by means of the pipe schedule sprinkler system of NFSC 103 results in insufficient pressure and flow rate about 50% sprinklers of operating area. In order to solve the lack of pressure and flow rate, This paper compare and analyzed NFSC 103, National Fire Safety Code of Sprinkler System, with NFPA 13, Standard for the Installation of Sprinkler Systems, and suggested an alternative proposal. Changing the flow rate of each sprinkler from existing 80 L/min to 120 L/min, All of the operating sprinklers are fulfilled the minimum demands on 80 L/min and 1 bar. It is easy for everyone to design of the pipe schedule sprinkler system and it is optimum method that all sprinklers in design area are satisfied with minimum criteria.
A Study on the Combustion Test of Artificial Turf Installed on Field
Min, Se-Hong ; Kim, Yeon-Hwang ;
Fire Science and Engineering, volume 28, issue 2, 2014, Pages 48~53
DOI : 10.7731/KIFSE.2014.28.2.048
In this study, we would evaluate fire risk by domestic standard for artificial turf installed on field and roofs. Today domestic regulation for artificial turf only applies to outdoor uses and especially KS M 3888-1 has compulsion but limited to school athletic facilities. Indoor regulation complying with National Emergency Management Agency (No. 2012-35) was enacted as recommendations. Thus this study did combustion test of artificial turf installed on field. Analyzed result by 45 degree flammability test, standard was inadequate to judge the fire risk so we compared and analysed its characteristic through combustion test of flame retardant finishing carpet used as flooring. Test and assessment result of its ignitionability by 45 degree flammability test showed that carpet was satisfied with flame retardant finishing performance standard contrary to artificial turf. For this reason, by conducting cone calorimeter test, the combustion property after ignition would be analyzed and evaluated and then this study will suggest a countermeasure for strengthening standard.
A Study on the Adaptability of the CO Sensor as A Fire Detection Sensor According to the Test Fire Source of UL 268
Lee, Chun-Ha ; Sung, Want-Ki ; Lee, Jong-Hwa ; Kim, Hyeong-Gweon ; Jee, Seung-Wook ; Kim, Si-Kuk ;
Fire Science and Engineering, volume 28, issue 2, 2014, Pages 54~63
DOI : 10.7731/KIFSE.2014.28.2.054
The purpose of this study is to test the adaptability of the CO sensor as a fire detector by analyzing its sensing characteristics on fire. In order to test the applicability, we designed and made a fire testing ground whose size is similar to that regulated by UL 268, carried out real fire tests suggested by UL 268, and conducted a comparison analysis on the sensing characteristics between the CO sensor and a photoelectric smoke detector by different types of fire source. The experiment result to the sensing characteristics of the CO sensor is about twice to three times faster than that of the photoelectric smoke detector, proceeding with incomplete combustion such as paper and wood fire source in the initial fire. Especially in case of wood smoldering fire, sensing characteristics of the CO sensor is very excellent.
The Measurement of Combustible Properties of Cyclohexanol
Ha, Dong-Myeong ;
Fire Science and Engineering, volume 28, issue 2, 2014, Pages 64~68
DOI : 10.7731/KIFSE.2014.28.2.064
For the safe handling of cyclohexanol, this study was investigated the explosion limits of cyclohexanol in the reference data. The flash points and auto-ignition temperatures (AITs) by ignition delay time were experimented. The lower flash points of cyclohexanol by using closed-cup tester were experimented in
. The lower flash points of cyclohexanol by using open cup tester were experimented in
. This study measured relationship between the AITs and the ignition delay times by using ASTM E659 tester for cyclohexanol. The AIT of cyclohexanol was experimented as
. The lower explosion limit (LEL) and the upper explosion limit UEL) by the measured the lower flash point and the upper flash point of cyclohexanol were calculated as 0.95 Vol% and 10.7 Vol%, respectively.
A Study on the Factors Affecting the Arson
Kim, Young-Chul ; Bak, Woo-Sung ; Lee, Su-Kyung ;
Fire Science and Engineering, volume 28, issue 2, 2014, Pages 69~75
DOI : 10.7731/KIFSE.2014.28.2.069
This study derives the factors which affect the occurrence of arson from statistical data (population, economic, and social factors) by multiple regression analysis. Multiple regression analysis applies to 4 forms of functions, linear functions, semi-log functions, inverse log functions, and dual log functions. Also analysis respectively functions by using the stepwise progress which considered selection and deletion of the independent variable factors by each steps. In order to solve a problem of multiple regression analysis, autocorrelation and multicollinearity, Variance Inflation Factor (VIF) and the Durbin-Watson coefficient were considered. Through the analysis, the optimal model was determined by adjusted Rsquared which means statistical significance used determination, Adjusted R-squared of linear function is scored 0.935 (93.5%), the highest of the 4 forms of function, and so linear function is the optimal model in this study. Then interpretation to the optimal model is conducted. As a result of the analysis, the factors affecting the arson were resulted in lines, the incidence of crime (0.829), the general divorce rate (0.151), the financial autonomy rate (0.149), and the consumer price index (0.099).
Evaluation of Structural Stability at High Temperature for H-section Beams Made of Ordinary Strength Steels by Analytic Method
Kwon, In-Kyu ;
Fire Science and Engineering, volume 28, issue 2, 2014, Pages 76~81
DOI : 10.7731/KIFSE.2014.28.2.076
Structural stability of structural beams at high temperature had been evaluated though a horizontal furnace and a standard fire curve. If a structural method and a material are satisfied with the fire test, those are seemed to be guaranteed the safety of residences, fire services men, and properties of the buildings. However, that requires not only longer period but higher cost for making and testing of each structural element. That restrained from developing new methods and new fire protective materials. In this study, an analytic method was executed to demonstrate whether the analytic method using mechanical properties of structural steel at high temperature with heat transfer theory works is working. In this paper, the surface temperature rising and variance of structural stability of a simple H-section beam with a standard fire curve were evaluated and structural stabilities of H-section beam according to differences from length of beam were suggested.
An Relational Analysis between Humidity, Temperature and Fire Occurrence using Public Data
Song, Dong-Woo ; Kim, Ki-Sung ; Lee, Su-Kyung ;
Fire Science and Engineering, volume 28, issue 2, 2014, Pages 82~90
DOI : 10.7731/KIFSE.2014.28.2.082
According to recent government`s 3.0 operating paradigm for the opening and sharing of public information, relationship between humidity, temperature and fire occurrence were analyzed using the data in National Weather Service and National Emergency Management Agency. In order to analyze the relationships between humidity, temperature and fire occurrence, hourly frequency of fire occurrence compared with humidity and temperature ranges was suggested as an analysis method. Tendencies of fire occurrence frequencies were examined through this and characteristics of detailed attributes could be statistically identified. Results about hourly frequencies of fire occurrence by classifying the humidity ranges in each region showed increasing frequencies in all areas where the humidity is lower. Hourly frequencies of fire occurrence according to temperature ranges were identified to be similar in each area as well. In addition, characteristics of objects` attributes were analyzed including types of fire, igniting source of fire, initial complex, reasons of fire occurrence, and distinctive directions were suggested. Suggested method in this paper could be practically used when suggesting the frequency in each category in fire occurrence statistics of National Fire Information System.
New Input Keyword Extraction of Equipments Involved in Ignition Using Morphological Analysis
Kim, Eun Ju ; Choi, Jeung Woo ; Ryu, Joung Woo ;
Fire Science and Engineering, volume 28, issue 2, 2014, Pages 91~97
DOI : 10.7731/KIFSE.2014.28.2.091
New types of fire accidents appear or the existing types disappeared because of rapidly changing society. We proposed a methodology of extracting new nouns from fire investigation data each of which is an accident report producted by fire investigators. The new nouns could be used in modifying the existing categories for classifying fire accidents. We analysed morphology of the product names and the ignition summaries using the proposed method for the fire accidents classified as the etc sub-category of the category of equipments involved in ignition. In this paper, we found "dryer" as a new sub-category of the agricultural equipment category and "boiler" in the seasonal appliance category from the product names of the fire accidents. We also extracted the new input keywords of "aquarium" and "monitor" in the commercial facilities category and the video, audio apparatus category from the ignition summaries respectively. Using the four subcategories, we reclassified 548 (14.39%) of 3,808 fire accidents assigned to the etc sub-category.
A Suggestion for Effectiveness Secure of Fire Servant`s Three Shift Working System
Song, Yong-Sun ;
Fire Science and Engineering, volume 28, issue 2, 2014, Pages 98~104
DOI : 10.7731/KIFSE.2014.28.2.098
The fire servant`s three shift working system tried out from 2009, and the performance rate of the fire servant`s three shift working system is currently 98%. The Domestic study on fire servant`s three shift working system is very elementary and puerile level, and its study is almost zero. Accordingly, this study aimed to sort through problems and prior task of the three shift working system implementation, and to suggestion for effectiveness secure of Fire servant`s three shift working system.