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Numerical Analysis of the Movement of Smoke and Transformation of Flammable Material in High Rack Warehouse Fire(PDF)

南京师范大学学报（工程技术版）[ISSN:1006-6977/CN:61-1281/TN]

Issue:
2013年01期
Page:
30-
Research Field:
Publishing date:

Info

Title:
Numerical Analysis of the Movement of Smoke and Transformation of Flammable Material in High Rack Warehouse Fire
Author(s):
Bao Jingyun1; Zhang Hairu2; Fan Hongtu2; Liu Hao3; Yang Hongmin3
(1.Safety and Security Team/Security Part,LG.Display(Nanjing)Co.,Ltd,Nanjing 210046,China) (2.Design Institute,Nanjing Shengnuo Heat Pipe Co.Ltd.,Nanjing 210009,China) (3.School of Energy and Mechanical Engineering,Nanjing Normal University,Nanjing 210042,China)
Keywords:
high warehouse fire; occurrence pattern; numerical simulation
PACS:
TK223
DOI:
-
Abstract:
Aiming at the inflaming property of flammable materials in a high rack warehouse,a geometrical model was established.ED(Eddy Dissipation Model)mode is used to make simulation on the speed and temperature of fire smoke under mechanical ventilation,and on distribution character of combustion reaction.The results show that the behaviors about the cool and hot fluid make a Low speed reflux zone in the center of the warehouse.The smoke is low in flow rate around the fuel storage tanks,and is high in flow rate in the inlets of cold air and the exhausted gas outlet of the system.The temperature distribution is influenced by cool air,behavior of the flue gas and chemical reactions.The lower value is near the floor,while the higher zones are near the center of the warehouse and the outlet of the extractor fans.Combustion reactants are mainly distributed near the storage tanks,and the higher concentrations of the products including CO2 and H2O in the center lead to a disadvantage over the fire fighting.

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Last Update: 2013-03-31