Experimental Investigation on the Mass Loss Rates of Thin-Layered n-Heptane Pool Fires in Longitudinally Ventilated Reduced Scale Tunnel

Date

2017-01-01

Author

Shafee, Sina
Yamali, Uluc
Yozgatlıgil, Ahmet

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Thin-layered n-heptane pool fires are burned with varied pool depths under longitudinal ventilation velocities ranging between 0.5-2.5 m/s in a reduced scale tunnel model. The combined effects of ventilation, pool size, and depth are investigated on the heat release rate, temperature distribution, and mass loss rate of fire. The gas temperature distribution and heat release rate results indicate that the critical ventilation velocity is achieved around 1 m/s in the scaled model, corresponding to 3.6 m/s in the real scale tunnel. It is observed that the gas temperature downstream of the fire increases at 2.5 m/s ventilation due to an enhancing effect of oxygen supply to the fire and increased flame deflection towards the leeward side of the pan. Results show that maximum heat release rate and total heat release normalized by fuel amount tend to occur at critical ventilation velocity. The measured mass loss rates show a considerable increasing trend with pool depth.

Subject Keywords

Critical ventilation velocity, Thin-layered pool fire, Mass loss rate, Heat release rate

URI

https://hdl.handle.net/11511/33337

Journal

COMBUSTION SCIENCE AND TECHNOLOGY

DOI

https://doi.org/10.1080/00102202.2017.1338693

Collections

Department of Mechanical Engineering, Article

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Citation Formats

S. Shafee, U. Yamali, and A. Yozgatlıgil, “Experimental Investigation on the Mass Loss Rates of Thin-Layered n-Heptane Pool Fires in Longitudinally Ventilated Reduced Scale Tunnel,” COMBUSTION SCIENCE AND TECHNOLOGY, pp. 1907–1923, 2017, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/33337.