Study on the window spill fire plume trajectory of over-ventilated intermediate-scale compartment fires

Autor: Biao Zhou, Chenyang Jiang, Hideki Yoshioka, Kai Wang, Hongru Zhou, Yike Guo, Miaomiao Zhao, Kaijie Chen, Zhenxiang Tao, Yuwei Wang
Jazyk: angličtina
Rok vydání: 2024
Předmět:
Zdroj: Case Studies in Thermal Engineering, Vol 61, Iss , Pp 104955- (2024)
Druh dokumentu: article
ISSN: 2214-157X
DOI: 10.1016/j.csite.2024.104955
Popis: The fire plume behavior of over-ventilated compartment fire is believed to be related with the façade fire. When the fire plume is reattached to the façade wall, the combustible materials over building wall are potential to be ignited soon. To investigate the window spill fire plume trajectory of over-ventilated intermediate-scale compartment fires, a modeling of fire plume trajectory is set up by using the energy conservation equation and spread theory. The temperature history of over-ventilated compartment fire is conducted by using a 1.35 m (L) × 1.35 m (H) × 1.35 m (W) compartment with window opening aspect varied from 1.12 to 4.44 and HRR differed from 200 kW to 1000 kW. The temperature of fire plume is recorded by the thermocouple mesh and the IR camera. It shows that the modelling theory could be used to predict the shape of fire plume. It agrees well with experimental result. The heat release rate of compartment fire is found to impact little influence on the shape of fire plume regarding a fixed opening dimension. It could provide a reasonable method for fire plume trajectory prediction of the intermediate-scale enclosure fire under an over-ventilated condition.
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