Modeling and simulation of liquid pool fires with in-depth radiation absorption and heat transfer

Topi Sikanen (Corresponding Author), Simo Hostikka

    Research output: Contribution to journalArticleScientificpeer-review

    28 Citations (Scopus)

    Abstract

    In this paper we present a computational fluid dynamics model for predicting the heat release rates of liquid pool fires. The model makes use of the one-dimensional heat transfer solver to provide the liquid surface boundary condition for the gas phase solver. The in-depth radiation transport is solved by a one-dimensional radiation transport model together with effective absorption coefficients determined from experimental data. The model accounts for the convective heat transfer in the liquid phase by modifying the thermal conductivity. The model is implemented as a boundary condition in the fire dynamics simulator (FDS). The model is validated by comparing experimental and predicted evaporation rates for water and a range of hydrocarbon fuels. The sensitivity of the results to the modelling assumptions and model input parameters is studied. The in-depth heat transfer appears to have a significant effect on the fire dynamics, except for the peak burning rates, which depend most importantly on the gas phase combustion.
    Original languageEnglish
    Pages (from-to)95-109
    JournalFire Safety Journal
    Volume80
    DOIs
    Publication statusPublished - 2016
    MoE publication typeA1 Journal article-refereed

    Fingerprint

    radiation absorption
    Fires
    heat transfer
    Heat transfer
    Radiation
    Liquids
    liquids
    radiation transport
    simulation
    Gases
    Boundary conditions
    boundary conditions
    vapor phases
    hydrocarbon fuels
    burning rate
    evaporation rate
    liquid surfaces
    convective heat transfer
    Hydrocarbons
    computational fluid dynamics

    Keywords

    • burning rate
    • heat release rate
    • pool fire
    • fuel absorption
    • thermal radiation

    Cite this

    @article{7a9c650bea3f4e8197fab33d27475d12,
    title = "Modeling and simulation of liquid pool fires with in-depth radiation absorption and heat transfer",
    abstract = "In this paper we present a computational fluid dynamics model for predicting the heat release rates of liquid pool fires. The model makes use of the one-dimensional heat transfer solver to provide the liquid surface boundary condition for the gas phase solver. The in-depth radiation transport is solved by a one-dimensional radiation transport model together with effective absorption coefficients determined from experimental data. The model accounts for the convective heat transfer in the liquid phase by modifying the thermal conductivity. The model is implemented as a boundary condition in the fire dynamics simulator (FDS). The model is validated by comparing experimental and predicted evaporation rates for water and a range of hydrocarbon fuels. The sensitivity of the results to the modelling assumptions and model input parameters is studied. The in-depth heat transfer appears to have a significant effect on the fire dynamics, except for the peak burning rates, which depend most importantly on the gas phase combustion.",
    keywords = "burning rate, heat release rate, pool fire, fuel absorption, thermal radiation",
    author = "Topi Sikanen and Simo Hostikka",
    year = "2016",
    doi = "10.1016/j.firesaf.2016.01.002",
    language = "English",
    volume = "80",
    pages = "95--109",
    journal = "Fire Safety Journal",
    issn = "0379-7112",
    publisher = "Elsevier",

    }

    Modeling and simulation of liquid pool fires with in-depth radiation absorption and heat transfer. / Sikanen, Topi (Corresponding Author); Hostikka, Simo.

    In: Fire Safety Journal, Vol. 80, 2016, p. 95-109.

    Research output: Contribution to journalArticleScientificpeer-review

    TY - JOUR

    T1 - Modeling and simulation of liquid pool fires with in-depth radiation absorption and heat transfer

    AU - Sikanen, Topi

    AU - Hostikka, Simo

    PY - 2016

    Y1 - 2016

    N2 - In this paper we present a computational fluid dynamics model for predicting the heat release rates of liquid pool fires. The model makes use of the one-dimensional heat transfer solver to provide the liquid surface boundary condition for the gas phase solver. The in-depth radiation transport is solved by a one-dimensional radiation transport model together with effective absorption coefficients determined from experimental data. The model accounts for the convective heat transfer in the liquid phase by modifying the thermal conductivity. The model is implemented as a boundary condition in the fire dynamics simulator (FDS). The model is validated by comparing experimental and predicted evaporation rates for water and a range of hydrocarbon fuels. The sensitivity of the results to the modelling assumptions and model input parameters is studied. The in-depth heat transfer appears to have a significant effect on the fire dynamics, except for the peak burning rates, which depend most importantly on the gas phase combustion.

    AB - In this paper we present a computational fluid dynamics model for predicting the heat release rates of liquid pool fires. The model makes use of the one-dimensional heat transfer solver to provide the liquid surface boundary condition for the gas phase solver. The in-depth radiation transport is solved by a one-dimensional radiation transport model together with effective absorption coefficients determined from experimental data. The model accounts for the convective heat transfer in the liquid phase by modifying the thermal conductivity. The model is implemented as a boundary condition in the fire dynamics simulator (FDS). The model is validated by comparing experimental and predicted evaporation rates for water and a range of hydrocarbon fuels. The sensitivity of the results to the modelling assumptions and model input parameters is studied. The in-depth heat transfer appears to have a significant effect on the fire dynamics, except for the peak burning rates, which depend most importantly on the gas phase combustion.

    KW - burning rate

    KW - heat release rate

    KW - pool fire

    KW - fuel absorption

    KW - thermal radiation

    U2 - 10.1016/j.firesaf.2016.01.002

    DO - 10.1016/j.firesaf.2016.01.002

    M3 - Article

    VL - 80

    SP - 95

    EP - 109

    JO - Fire Safety Journal

    JF - Fire Safety Journal

    SN - 0379-7112

    ER -