Uneven gridding of thermal nodal networks in floor heating simulations

Riikka Holopainen, Pekka Tuomaala, Jouko Piippo

    Research output: Contribution to journalArticleScientificpeer-review

    36 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

    Keywords

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

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