Analyzing the gas temperature of a hydrogen jet fire in a compartment with the Fire Dynamics Simulator
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A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
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Date
2024-01-31
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Language
en
Pages
10
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International Journal of Hydrogen Energy, Volume 53, pp. 1097-1106
Abstract
This study presents a method to simulate hydrogen jet fire using the Fire Dynamics Simulator (FDS). To avoid modeling an actual nozzle, high-speed Lagrangian particles released from a virtual nozzle are introduced to simulate released hydrogen. The capability of this FDS model to predict gas temperature is validated by comparing simulation results with five existing experiments in a rectangular steel compartment with an open end. The effects of relevant parameters prescribed in the FDS model on the gas temperature are also analyzed, including numerical parameters (auto-ignition exclusion zone, offset, particle count, and grid) and physical parameters (particle velocity, spray angle, and auto-ignition temperature). The results show that gas temperatures near the nozzle are sensitive to these parameters. Based on the grey relational analysis, the auto-ignition temperature is the least important parameter to predict gas temperatures, while the grid is the most significant parameter for gas temperatures near the ceiling.Description
Funding Information: The authors gratefully acknowledge the financial support provided by the Fuel Cells and Hydrogen 2 Joint Undertaking (now Clean Hydrogen Partnership) under Hy-tunnel CS Project [grant numbers 826193 ]. The authors gratefully acknowledge the support from the European Union's Horizon 2020 Research and Innovation program , Hydrogen Europe and Hydrogen Europe Research, the Finnish Fire Protection Fund ( Palosuojelurahasto ) [grant numbers VN/14165/2021 ], the Nordic Five Tech Alliance , as well as Otto Mønsteds Fond. Publisher Copyright: © 2023 The Authors
Keywords
Fluid Dynamic Simulator, Gas temperature, Hydrogen jet fire, Lagrangian particles, Sensitivity analysis
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Citation
Liu, W, Markert, F, Giuliani, L & Hostikka, S 2024, ' Analyzing the gas temperature of a hydrogen jet fire in a compartment with the Fire Dynamics Simulator ', International Journal of Hydrogen Energy, vol. 53, pp. 1097-1106 . https://doi.org/10.1016/j.ijhydene.2023.11.306