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Lee, Y. P., Delichatsios, M.A., Ohmiya, Y., Wakatsuki, K., Yanagisawa, A. and Goto, D., 2007. Flame Heights And Heat Fluxes On A Building Facade And An Opposite Building Wall By Flames Emerging From An Opening. AOFST 7
An opening in a fully developed burning room is the main path of a fire spreading from floor to floor and to an adjacent building. Even though the issue of fire spread to an adjacent building has been incorporated in fire safety engineering design guidelines, a performance-based design provides an alternative and accurate method to optimize the distance between the burning building faÃ§ade and an adjacent building. This situation was simulated by performing a series of smallâ€“scale experiments having a faÃ§ade wall with flames and an opposite parallel wall representing an adjacent building in order to investigate the physics of the flame behaviour and measure the heat fluxes between two walls. The outcome of this research provides unique information for engineering design for separation distances between adjacent buildings. A new length scale, l 3 , representing the length after which the flames turn from horizontal to vertical was developed in this research. The significance of this length scale has been verified by the experimental results for flame heights and heat fluxes and by observations. A similarity correlation for flame heights between the two parallel walls were developed in this research. Similarity correlations for radiative heat fluxes on facade walls were developed by dividing the data into two groups. One is for the distance between two walls being larger than length scale l 3 , the other is for the distance being less or equal to length scale l 3.
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