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A Study on the Radiation Effect of the Smoke Movement in Room Fires |

Jeong, Jin-Yong
(Department of Mechanical Engineering, Chung-Ang University)
Ryou, Hong-Sun (Department of Mechanical Engineering, Chung-Ang University) |

Publication Information

International Journal of Air-Conditioning and Refrigeration
/ v.10, no.3,
2002
, pp.
162-175
More about this Journal

Abstract

To investigate smoke movement with radiation in a room fires, a numerical and experi-mental analysis were performed. In this paper, results from a field model based on a self-developed SMEP (Smoke Movement Estimating Program) were compared with Stockier's ex-periment and the experiments on various sized pool fires in a room with door The SMEP using PISO algorithm solves conservation equations for mass, momentum, energy and species, together with those for the modified k- turbulence model with buoyancy term. Also it solves the radiation equation using the S-N discrete ordinates method (DOM). The result of the cal-culated smoke temperature considering radiation effect has shown good agreement compared with the experimental data, although there are large discrepancy in the hot smoke layer be-tween the temperature predicted by the SMEP with only convection effect and obtained by the experimental result. This large discrepancy is caused from the radiation effect of and gas under smoke productions. Hence the radiation effect under smoke in fire is the point to be specially considered in order to produce more realistic result.

Keywords

SMEP; PISO algorithm; Discrete ordinate method; Radiation effect;

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