Haowei Yao^1,3,*, Youxin Li^1,3, Kefeng Lv^1,3, Dong Wang^2,3, Jinguang Zhang⁴, Zhenyu Zhan^2,3, Zhenyu Wang^2,3, Huaitao Song^1,3, Xiaoge Wei^1,3, Hengjie Qin^1,3

CMES-Computer Modeling in Engineering & Sciences, Vol.136, No.1, pp. 733-747, 2023, DOI:10.32604/cmes.2023.022155 - 05 January 2023

Abstract To thoroughly study the extinguishing effect of a high-pressure water mist fire extinguishing system when a transformer fire occurs, a 3D experimental model of a transformer is established in this work by employing Fire Dynamics Simulator (FDS) software. More specifically, by setting different parameters, the process of the high-pressure water mist fire extinguishing system with the presence of both diverse ambient temperatures and water mist sprinkler laying conditions is simulated. In addition, the fire extinguishing effect of the employed high-pressure water mist system with the implementation of different strategies is systematically analyzed. The extracted results… More > Graphic Abstract

Yongheng Ku¹, Jinguang Zhang^2,3, Zhenyu Wang^3,4, Youxin Li^3,5, Haowei Yao^3,5,*

FDMP-Fluid Dynamics & Materials Processing, Vol.17, No.6, pp. 1077-1090, 2021, DOI:10.32604/fdmp.2021.015779 - 08 September 2021

Abstract In order to study the extinguishing performance of high-pressure-water-mist-based systems on the fires originating from power transformers the PyroSim software is used. Different particle velocities and flow rates are considered. The evolution laws of temperature around transformer, flue gas concentration and upper layer temperature of flue gas are analyzed under different boundary conditions. It is shown that the higher the particle velocity is, the lower the smoke concentration is, the better the cooling effect on the upper layer temperature of flue gas layer is, the larger the flow rate is and the better the cooling More >