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        건물 내장재의 화재위험성 평가 방법

        김운형,Quintiere, James G. 韓國火災 ·消防學會 1998 한국화재소방학회논문지 Vol.12 No.2

        건물 화재시 예상되는 내장재의 실제 화재성능을 기준으로 한 위험성 평가방법을 제시하였다. 이를 위해 ISO Room Corner Test (9705)를 기준으로 Quintiere의 화재확산 모델을 이용하여 내장재의 열적 특성과 플래쉬 오버 도달시간과의 상관성을 유도하고 스웨덴의 실제 시험결과와 비교 분석하였다. 이 결과, 내장재의 상대적인 화재위험성은 화재확산 변수 b를 기준으로 평가될 수 있었다. To propose a new fire hazard assessment criteria of interior finish materials, the properties and incident heat flux of interior finish materials in a compartment fires are investigated and compared b using flame spread model developed by Quintiere. The properties considered on which fire growth depend are including flame heat flux and thermal inertia, lateral flame spread parameter, heat of combustion and effective heat of gasfication. ISO Room Corner Test (9705) is applied in the model and the time for total energy release rate to reach 1MW is examined. The results are compared for the 24 different materials tested by EUREFIC. Dimensionless parameter a, b and ?b are used to develope a new method in which fire hazard of interior finish materials can be classified resulting from correlation between b and flashover time. Results show that if b greater than about zero, flashover time in the ISO Room Corner Test is principally proportional to ignition time only.

      • KCI등재
      • KCI등재

        ISO 9705 Room-Corner Test와 모델 평가

        김운영,S,E,Dillom,J,G Quintiere 한국화재소방학회 1999 한국화재소방학회논문지 Vol.13 No.2

        ISO 9705 room-corner test 기준에 따른 가연성 내장재의 화재위험성 평가를 위해 개발된 Quintiere 모델의 검증을 위해 이태리 L. S. F의 실대 화재 실험 결과와 비교 분석하였다. ISO 9705 시험은 최초 10분간은 100 kW, 이후 10분간은 300 kW의 화원에 노출된 벽, 천장재의 화염확산 성능 평가방법으로 열 방출비율이 1 MW에 이르면 플레쉬오버가 발생한다고 판단한다. 총 13개의 재료 중 실제 화재 시 용융, 박락, 변형 등이 나타나는 경우는 단위 면적 당 발생 열량 수정 값을 적용하였다. 바탕 면에 계속 부착되어 있는 마감재의 예측결과는 실험 결과에 근접하였다. 또한 Large-scale Test의 실험결과와 모델의 예측성능도 비교 분석하였다. New examination of a predictive model for the ISO 9705 room-corner test have been m made for materials studied by L S Fire Laboratories, Italy. The ISO 9705 test subjects wall a and ceiling mounted materials to a comer ignition source of 100 kW for a duration of 10 m minutes; if flashover does not occur this is followed by 300 kW for another 10 minutes. The m materials that did not stay in place during combustion because of melting, dripping, or d distorting were simulated by an adjustment to the material's total available energy. For m mat려als that remain in place the simulation model appears to do well in its prl어ictions. A l large-s떠Ie room test results 뾰 compar벼 with the m여el’s prediction also.

      • Igniter and Thickness Effects on Upward Flame Spread

        J,Q,Quintiere,Lee,C,H 한국화재소방학회 1997 한국화재소방학회 학술대회 논문집 Vol.1997 No.-

        Several studies have developed upward flame spread models which use somewhat different features. However, the models have not considered the transient effects of the igniter and the burning rate. Thus, the objective of this study is to examine a generalized upward flame spread model which includes these effects. We shall compare the results with results from simpler models used in the past in order to examine the importance of the simplifying assumptions. We compare these results using PMMA, and we also include experimental results for comparison. The results of the comparison indicate that flame velocity depends on the thermal properties of a material, the specific model for flame length and transient burning rate, as well as other variables including the heat flux by igniter and flame itself. The results from the generalized upward flame spread model can provide a prediction of flame velocity, flame and pyrolysis height, burnout time and position, and rate of energy output as a function of time.

      • APPLICATIONS OF A MODEL TO COMPARE AFLAME SPREAD AND BEAT RELEASE PROPERTIES OF INFERIOR FINISH MATERIALS IN A COMPARTMENT

        Kim,Woon-Hyung,James G,Quintiere 한국화재소방학회 1997 한국화재소방학회 학술대회 논문집 Vol.1997 No.-

        Flame spread and heat release properties and incident heat flux of interior materials subject to an igniter heat flux in a compartment are investigated and compared by using computer model. A comer fire ignition source is maintained for 10 minutes at 100 kw and subsequently increased to 300kw. In executing the model, base-line material properties are selected and one is changed for each run. Also 4 different igniter heat flux conditions and examined. Results are compared for the 12 different materials tested by the ISO Room Comer Test (9705). The time for total energy release rate to reach 1MW is examined. The parameters considered include flame heat flux and thermal inertia, lateral flame spread parameter, heat of combustion and effective heat of gasfication. The model can show the importance of each property in causing fire growth on interior Hnish materials in a compartment. The effect of ignitor heat flux and material property effects were demonstrated by using dimensionless parameters a, b and Tb. Results show that for b greater than about zero, flashover time in the ISO Room-Corner test is principally proportional to ignition time and nothing more.

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