Numerical Analysis of Natural Smoke Ventilation Design System under External Wind Effect in Factory Compartment

作     者：Chen-Wei Chiu Yi-Hong Chang Yi-Liang Shu 

作者机构：Department of Fire Safety National Taiwan Police College Taipei 11696 Taiwan R. O. C. Department of Safety Health and Environmental Engineering National Yunlin University of Science and Technology Yunlin64002 Taiwan R.O.C. Department of Safety Health and Environmental Engineering Central Taiwan University of Sciences and Technology Taichung40601 Taiwan R.O.C. 

出 版 物：《Journal of Civil Engineering and Architecture》 (土木工程与建筑（英文版）)

年 卷 期：2015年第9卷第12期

页      码：1474-1482页

摘      要：This study applied the numerical simulator tool FDS （fire dynamics simulator）, Version 5.53, and focused on the simulation of the natural smoke flow ventilation design system, an innovative ventilation design using the parallel processing technology MPI （message passing interface）. The design was then compared with the exhaust efficiency of a typical natural smoke vent. The natural smoke flow ventilation design system was located at the top of the factory, where smoke streams effectively converged. Therefore, the source of fire was designed to be 2 MW, which has a better exhaust efficiency than typical natural smoke vent with same area. The simulation discovered that the exhaust efficiency of the natural smoke ventilation design systems is higher than that of typical natural smoke vent with 2 times the opening area and that was not affected by external wind speed, Instead, external wind speed can help to enhance the exhaust efficiency. Smoke exhaust of typical natural smoke vents was affected by external wind speed, even leading them to become air inlets which would disturb the flow of air indoors, leading to smoke accumulation within the factory.

主 题 词：FDS MPI natural smoke flow ventilation design system wind effect. 

学科分类：1305[艺术学-设计学类] 13[艺术学] 08[工学] 080203[080203] 081304[081304] 0813[工学-化工与制药类] 0802[工学-机械学] 0814[工学-地质类] 080201[080201] 

馆 藏 号：203243754...