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논문 기본 정보

자료유형
학술저널
저자정보
저널정보
대한기계학회 대한기계학회 논문집 B권 대한기계학회논문집 B권 제26권 제5호
발행연도
2002.5
수록면
703 - 709 (7page)

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초록· 키워드

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In order to investigate the smoke movement in three dimensional room fires, the center fire, wall fire and comer fire plume in different sized fires were studied experimentally by rectangular pool fire using methanol as a fuel. As the fire size became larger for the center fires placed at the center of the floor, the air flow rate entrained through the opening, average hot layer temperature, flame angle deflected backwards and mean flame height was observed to increase. On the other hand, as the fire size became smaller. the neutral plane height in the door and time reached steady-state was observed to decrease. The average hot layer temperature, mean flame height and doorway neutral plane height obtained from comer fire were higher than those produced by wall fires and center fires. The simple model for describing the effect of walls on the mean flame height was presented. It was shown that the model provides a good description of the present measurements, when used with the assumption by Hansell( 1993), that the increase of the average flame height is equal to the ratio of the open to the total perimeters of the trays. Also the two models for predicting the effects of walls on the mean flame height were presented. These models overestimated the measured values of the mean flame height above fuel trays close to a wall and in a comer by approximately 19-26%, respectively.

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Abstract

1.서론

2.실험 장치

3.이론 해석

4.결과 및 토의

5.결론

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UCI(KEPA) : I410-ECN-0101-2009-550-014041883