Publicação
Towards a predictive model for incoming thermal fluxes during a fuel warehouse fire
| Resumo: | The prediction of released heat fluxes from fires is mandatory for any fire safety strategy. Indeed, the spreading time and directions of thermal fluxes are particularly critical in the situations of fuel warehouses, where temperature levels can induce primary and secondary inflammations in the neighbouring depots. Moreover, firefighters should operate in areas where the thermal environment is tolerable and in favour of efficient egress operations. Several correlative models provided by some industrial organizations are applied to the study case of Naftal-Chiffa fuel warehouse (Blida, Algeria). Various fire characteristics are predicted, in particular height and inclination of jet flames, in addition to the spatial distribution of heat fluxes on solid targets (human bodies and structures). The analyses reveal that the safety distances corresponding to the threshold fluxes of 3 kw/m2, 5 kw/m2 and 8 kw/m2 as provided by the IT-89 correlations, exhibit an important dispersion when relative humidity was different from 70% and the fuel tank was had no longer a square shape. In this direction, the present study was completed with a parametric analysis on the effects of climatic conditions (ambient temperature, relative humidity, wind speed) and storage tanks geometry on the distances relates to critical thermal fluxes. |
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| Autores principais: | Seman, Abdou |
| Outros Autores: | Benarous, Abdallah; Piloto, P.A.G. |
| Assunto: | Fire Liquid fuel Warehouse Correlative model Heat fluxes Safety distances |
| Ano: | 2021 |
| País: | Portugal |
| Tipo de documento: | documento de conferência |
| Tipo de acesso: | acesso aberto |
| Instituição associada: | Instituto Politécnico de Bragança |
| Idioma: | inglês |
| Origem: | Biblioteca Digital do IPB |
| Resumo: | The prediction of released heat fluxes from fires is mandatory for any fire safety strategy. Indeed, the spreading time and directions of thermal fluxes are particularly critical in the situations of fuel warehouses, where temperature levels can induce primary and secondary inflammations in the neighbouring depots. Moreover, firefighters should operate in areas where the thermal environment is tolerable and in favour of efficient egress operations. Several correlative models provided by some industrial organizations are applied to the study case of Naftal-Chiffa fuel warehouse (Blida, Algeria). Various fire characteristics are predicted, in particular height and inclination of jet flames, in addition to the spatial distribution of heat fluxes on solid targets (human bodies and structures). The analyses reveal that the safety distances corresponding to the threshold fluxes of 3 kw/m2, 5 kw/m2 and 8 kw/m2 as provided by the IT-89 correlations, exhibit an important dispersion when relative humidity was different from 70% and the fuel tank was had no longer a square shape. In this direction, the present study was completed with a parametric analysis on the effects of climatic conditions (ambient temperature, relative humidity, wind speed) and storage tanks geometry on the distances relates to critical thermal fluxes. |
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