Uneven gridding of thermal nodal networks in floor heating simulations

Riikka Holopainen, Pekka Tuomaala, Jouko Piippo

    Research output: Contribution to journalArticleScientificpeer-review

    34 Citations (Scopus)

    Abstract

    In this paper, the use of an uneven nodal network in floor heating simulation with finite difference heat balance method is examined. Two floor heating test cases, homogenous and multilayer floor, are presented. Temperature distributions on the floor surface and heat flows through the floor surface are simulated with even and uneven gridding approaches. It is shown that the total number of nodes can be reduced by placing the densest gridding in sections where the curvature of the temperature gradient is steepest.
    Original languageEnglish
    Pages (from-to)1107-1114
    JournalEnergy and Buildings
    Volume39
    Issue number10
    DOIs
    Publication statusPublished - 2007
    MoE publication typeA1 Journal article-refereed

    Fingerprint

    Heating
    Thermal gradients
    Multilayers
    Temperature distribution
    Hot Temperature
    Heat transfer

    Keywords

    • Thermal simulation
    • Floor heating
    • Uneven gridding
    • Thermal network

    Cite this

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    title = "Uneven gridding of thermal nodal networks in floor heating simulations",
    abstract = "In this paper, the use of an uneven nodal network in floor heating simulation with finite difference heat balance method is examined. Two floor heating test cases, homogenous and multilayer floor, are presented. Temperature distributions on the floor surface and heat flows through the floor surface are simulated with even and uneven gridding approaches. It is shown that the total number of nodes can be reduced by placing the densest gridding in sections where the curvature of the temperature gradient is steepest.",
    keywords = "Thermal simulation, Floor heating, Uneven gridding, Thermal network",
    author = "Riikka Holopainen and Pekka Tuomaala and Jouko Piippo",
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    Uneven gridding of thermal nodal networks in floor heating simulations. / Holopainen, Riikka; Tuomaala, Pekka; Piippo, Jouko.

    In: Energy and Buildings, Vol. 39, No. 10, 2007, p. 1107-1114.

    Research output: Contribution to journalArticleScientificpeer-review

    TY - JOUR

    T1 - Uneven gridding of thermal nodal networks in floor heating simulations

    AU - Holopainen, Riikka

    AU - Tuomaala, Pekka

    AU - Piippo, Jouko

    PY - 2007

    Y1 - 2007

    N2 - In this paper, the use of an uneven nodal network in floor heating simulation with finite difference heat balance method is examined. Two floor heating test cases, homogenous and multilayer floor, are presented. Temperature distributions on the floor surface and heat flows through the floor surface are simulated with even and uneven gridding approaches. It is shown that the total number of nodes can be reduced by placing the densest gridding in sections where the curvature of the temperature gradient is steepest.

    AB - In this paper, the use of an uneven nodal network in floor heating simulation with finite difference heat balance method is examined. Two floor heating test cases, homogenous and multilayer floor, are presented. Temperature distributions on the floor surface and heat flows through the floor surface are simulated with even and uneven gridding approaches. It is shown that the total number of nodes can be reduced by placing the densest gridding in sections where the curvature of the temperature gradient is steepest.

    KW - Thermal simulation

    KW - Floor heating

    KW - Uneven gridding

    KW - Thermal network

    U2 - 10.1016/j.enbuild.2006.12.006

    DO - 10.1016/j.enbuild.2006.12.006

    M3 - Article

    VL - 39

    SP - 1107

    EP - 1114

    JO - Energy and Buildings

    JF - Energy and Buildings

    SN - 0378-7788

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    ER -