2003, Volume 5, Issue 8
Strategic Study of CAE >> 2003, Volume 5, Issue 8
Cell-Zone Method: An Engineering Approach to Predict Smoke Movement in Large Scale Building Fire
State Key Laboratory of Fire Science , University of Science and Technology of China , Hefei 230027 , China
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Abstract
In large scale building fire, it is improper to predict smoke descending using traditional simple two-layer zone model, which divides the total space of the building into upper hot smoke layer and lower cool air layer. In this paper, an improved method, named Cell-Zone Method, is used to solve this problem, which first divides the total space into some small subspaces and then uses traditional two-layer zone model in each subspace. Comparison is carried out between these two methods in fire smoke development simulation in typical large space buildings by CFAST4.02 software package. Results show that Cell-Zone Method demonstrates more applicability than traditional simple two-layer zone model in large scale building, especially in buildings having large scale in one direction.
Keywords
large scale building ; smoke movement ; cell-zone method ; zone-model
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References
[ 1 ] 霍 然, 胡 源, 李元洲.建筑火灾安全工程导论[M].合肥:中国科学技术大学出版社, 1999 link1
[ 2 ] 范维澄, 刘乃安.火灾安全科学—一个新兴交叉的工程科学领域[J].中国工程科学, 2001, 3 (1) :6～14 link1
[ 3 ] ChowWK .Simulationoftunnelfiresusingazonemodel[J], TunnellingandUndergroundSpaceTechnology, 1996, 11 (2) :221～236
[ 4 ] JonesWW .Stateoftheartinzonemodelingoffires, theVereinigungzurForderungdesdeutschenBrandschutzese.V . (VFDB) [A].InternationalFireProtectionSeminar, 9th.EngineeringMethodsforFireSafety.Proceedings[C ].MunichGermany, 2001.A 4/89～126
[ 5 ] 叶瑞标, 潘关新, 陈小军, 等.地下建筑公共娱乐场所火灾烟气防治[J].消防技术与产品信息, 1996, (2) :21～26 link1
[ 6 ] JonesWW , ForneyGP , PeacockRD , etal.ATechnicalReferenceforCFAST :AnEngineeringToolforEstimatingFireandSmokeTransport[M ].NationalInstituteofStandardsandTechnology, BuildingandFireResearchLaboratory, January2000
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