NUMERICAL-SIMULATION ON COOLING OF THE FIRE-INDUCED AIR-FLOW BY SPRINKLER WATER SPRAYS

被引：27

作者：

CHOW, WK

FONG, NK

机构：

[1] Department of Building Services Engineering, Hong Kong Polytechnic, Hung Hom

来源：

FIRE SAFETY JOURNAL | 1991年 / 17卷 / 04期

关键词：

D O I：

10.1016/0379-7112(91)90023-R

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

By the air drag and cooling effect of water droplets, the cooling of the fire-induced hot air flow by sprinkler water sprays is studied by using a three-dimensional field modelling technique. This gives a 'microscopic' description of visualizing how the sprinkler interacts with a smoke layer. Macroscopic parameters, such as drag-to-buoyancy ratio, convective cooling rate, etc., can be computed accordingly. With such a model, it is possible for the fire-safety engineers to design proper location, type and performance of sprinkler systems. Since experimental data for validating the model are absent, it is concluded that measurement from full-scale burning tests in a sprinklered compartment is needed.

引用

页码：263 / 290

页数：28

共 37 条

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