期刊
BUILDING SERVICES ENGINEERING RESEARCH & TECHNOLOGY
卷 42, 期 1, 页码 112-124出版社
SAGE PUBLICATIONS LTD
DOI: 10.1177/0143624420964313
关键词
High rise buildings; pressure differential systems; smoke control; stairwell; stairwell leakage
This study tested the impact of leakage on pressure distribution in stairwells with different levels of leakage, finding that leakage affects the conditions for maintaining overpressure.
The task of fire pressure differential systems in a building is to prevent smoke from entering protected spaces such as stairwells and areas that should remain smoke-free in the event of fire. The required overpressure must consider leakage within the protected space. This article presents the results of testing to determine the impact of leakage of the protected space on the conditions for maintaining overpressure. The research was conducted in accordance with draft standard N161-prEN12101-6. The pressure distribution as a function of time was obtained for stairwells with different levels of leakage, using a constant flow aeration fan as well as systems with a variable airflow.
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