The effect of the height of the installation of a manual fire barrel with optimal geometric parameters on the consumption of extinguishing agent
DOI:
https://doi.org/10.33408/2519-237X.2022.6-4.429Keywords:
manual fire barrel, flow part, consumption of extinguishing agent, hydraulic calculation of pumping-hose systemsAbstract
Purpose. Conducting experimental studies to determine the consumption of extinguishing agent at different pump force when changing the height of the location of the manual fire barrel with optimal geometric parameters.
Methods. Numerical modeling by the finite element method, experimental studies according to the developed methodology using certified and calibrated equipment.
Findings. It is found that the dimension y of the first cell of the finite element grid significantly affects the calculation time – when the cell size is reduced by 2 times, the time increases by more than 5 times, while the calculation results change by less than 1 %. The influence of the height of the location of the fire barrel on the consumption of extinguishing agent at different fire pump forces is investigated. It was found that the calculated values differ from the experimental ones by no more than 8 %, which in practice does not affect the fire extinguishing process.
Application field of research. The results obtained are the basis for calculating the geometric parameters of the flow part of fire barrels and a comprehensive study of their tactical and technical characteristics.
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