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The Analysis of Flow Field at the Staircase Door in the High rise Building When Firing(PDF)

《南京理工大学学报》(自然科学版)[ISSN:1005-9830/CN:32-1397/N]

Issue:
1999年01期
Page:
81-84
Research Field:
Publishing date:

Info

Title:
The Analysis of Flow Field at the Staircase Door in the High rise Building When Firing
Author(s):
Wang Dongfang He Jiapeng Shi Qingsheng
Nanjing Architectural and Civil Engineering Institute,Nanjing210009
Keywords:
air curtains flow fields f low lines potent ial f low prevent ing-smoke
PACS:
TU972.4
DOI:
-
Abstract:
The purpose of smokeproof design for high-rise building is to prevent harm f rom smoke and to cont rol smoke-dif fusing. The effect ive smoke-prevent ing installat ion should have the funct ions such as absolute smoke insulat ion, going into and coming off the smoke-prevent ing place f reely, no conf inement of sight. T hrough analyzing smoke-flow f ield theoret ically, it is discussed that the effect of air flow on a hig h-rise building is a result of gas ex pansion by the temperature, the chimney effect , the outdoor w ind pow er and the vent ilation and air-conditioning system when firing. The f low field at the staircase door is theoret ically found. The w ay in w hich the diffusion of smoke is cont rolled is adv anced according to the principle of f low line-flow rate and based on the previous experimental researches by others, the calculat ion method for the smoke-prevent ing air curtain is infered in this paper.

References:

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Memo

Memo:
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Last Update: 2013-03-29