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

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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",
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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

IS - 10

ER -