Safe Firefighting Distances Using FDS and ALOHA for Oil Tank Fires DOI Creative Commons

Meng-Feng Hung,

Ching‐Yuan Lin,

Gary Li-Kai Hsiao

et al.

Fire, Journal Year: 2024, Volume and Issue: 7(12), P. 445 - 445

Published: Nov. 29, 2024

Ensuring firefighter safety during oil tank fires is paramount, given the substantial risks posed by thermal radiation. This study employs both Fire Dynamics Simulator (FDS) and Areal Locations of Hazardous Atmospheres (ALOHA) software to simulate a severe fire scenario at Zhushan Branch Power Plant, where two heavy tanks multiple light are located. The simulation framework divides combustion into 22.4 million grids with grid size 0.5 m, allowing fine-resolution assessment Assuming worst-case involving n-Heptane combustion, FDS calculates essential parameters, including temperature, velocity, soot distribution fields, suggests minimum safe firefighting distance 22 m (equivalent one diameter, 1D) for those equipped personal protective equipment when exposed 5 kW/m2 heat flux. Meanwhile, ALOHA modeling extends assessment, recommending downwind 62 (approximately 2D) establish preliminary exclusion zone, crucial in early emergency response data may be incomplete. Additionally, sensitivity analysis was conducted validate accuracy numerical results. underscores importance coupling outputs develop balanced, adaptive approach safety, optimizing protocols high-risk environments. results provide guidance establishing zones, advancing standards within protection response, supporting strategy development large-scale petrochemical storage facilities.

Language: Английский

Safe Firefighting Distances Using FDS and ALOHA for Oil Tank Fires DOI Creative Commons

Meng-Feng Hung,

Ching‐Yuan Lin,

Gary Li-Kai Hsiao

et al.

Fire, Journal Year: 2024, Volume and Issue: 7(12), P. 445 - 445

Published: Nov. 29, 2024

Ensuring firefighter safety during oil tank fires is paramount, given the substantial risks posed by thermal radiation. This study employs both Fire Dynamics Simulator (FDS) and Areal Locations of Hazardous Atmospheres (ALOHA) software to simulate a severe fire scenario at Zhushan Branch Power Plant, where two heavy tanks multiple light are located. The simulation framework divides combustion into 22.4 million grids with grid size 0.5 m, allowing fine-resolution assessment Assuming worst-case involving n-Heptane combustion, FDS calculates essential parameters, including temperature, velocity, soot distribution fields, suggests minimum safe firefighting distance 22 m (equivalent one diameter, 1D) for those equipped personal protective equipment when exposed 5 kW/m2 heat flux. Meanwhile, ALOHA modeling extends assessment, recommending downwind 62 (approximately 2D) establish preliminary exclusion zone, crucial in early emergency response data may be incomplete. Additionally, sensitivity analysis was conducted validate accuracy numerical results. underscores importance coupling outputs develop balanced, adaptive approach safety, optimizing protocols high-risk environments. results provide guidance establishing zones, advancing standards within protection response, supporting strategy development large-scale petrochemical storage facilities.

Language: Английский

Citations

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