加圧煙制御における給気方式の差異が遮煙性能に与える影響に関する研究:実大模型を用いた常温給気実験による測定面に直交する風速成分および動圧存在下での静圧と遮煙性能との関係

摘要

本報では，前報で考察した遮煙に必要な要素と既報で得られた遮煙性能の関係を明らかにすべく，火災実験に用いた実大模型を用いて常温給気実験を行った．実験では，前報で提案した測定手法を用いて，給気室と外部の静圧差，遮煙開口部の垂線面および上部面に対する直交風速成分を測定した．その結果，以下のことを示した．%Influence on Smoke Shield Performance which the Difference of the Air Supply Systems Causes in Pressurized Smoke Control-Relations with the Performance of Smoke Shield and Orthogonality Ingredient of the Wind Velocity and Static Pressure under the Dynamic Pressure Existence by Aeration Experiment at the Normal Temperature Using Full-scale Model-For the purpose of elucidating the influence that the difference in aeration method gave in smoke shield performance,an aeration experiment at the normal temperature was carried out using a full-scale model like the fire experiment.By the experiment,static pressure differences between aeration room and outside and The wind velocity of the ingredient vertical for the upper surface and the perpendicular surface in the smoke shield opening were measured.As a result,the following things were shown. 1)Non-dimensional static pressure difference P*is almost proportion to smoke shield performance. 2)Upper aspect non-dimensional wind velocity ratio Vu* is almost proportion to smoke shield performance. 3)The achievement of smoke shield requires the thrust from the perpendicular surface and the upper surface which are orthogonally crossing.