Thermal radiation in a room: An improved progressive refinement method

Research output: Contribution to journalArticleScientificpeer-review

5 Citations (Scopus)

Abstract

A new approach is described for the calculation of radiative heat transfer within buildings. The progressive refinement method together and a fast view factor estimation algorithm are introduced, implemented and tested. Results obtained by the Improved Progressive Refinement Method (IPRM) are compared with the results from the standard matrix method and an earlier study. This paper also demonstrates how the IPRM is capable of evaluating the distribution of heat flux on wall surfaces iteratively to a desired accuracy level, and with no need to store view factors between all sub-surfaces concurrently. In other words, IPRM allows a more realistic evaluation of nonuniform thermal radiation of a space into a desired accuracy level, while requiring less computer time and memory.

Original languageEnglish
Pages (from-to)11 - 19
Number of pages9
JournalBuilding Services Engineering Research and Technology
Volume21
Issue number1
DOIs
Publication statusPublished - 2000
MoE publication typeA1 Journal article-refereed

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Heat radiation
Heat flux
Heat transfer
Data storage equipment

Cite this

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title = "Thermal radiation in a room: An improved progressive refinement method",
abstract = "A new approach is described for the calculation of radiative heat transfer within buildings. The progressive refinement method together and a fast view factor estimation algorithm are introduced, implemented and tested. Results obtained by the Improved Progressive Refinement Method (IPRM) are compared with the results from the standard matrix method and an earlier study. This paper also demonstrates how the IPRM is capable of evaluating the distribution of heat flux on wall surfaces iteratively to a desired accuracy level, and with no need to store view factors between all sub-surfaces concurrently. In other words, IPRM allows a more realistic evaluation of nonuniform thermal radiation of a space into a desired accuracy level, while requiring less computer time and memory.",
author = "Pekka Tuomaala and Kalevi Piira",
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Thermal radiation in a room : An improved progressive refinement method. / Tuomaala, Pekka; Piira, Kalevi.

In: Building Services Engineering Research and Technology, Vol. 21, No. 1, 2000, p. 11 - 19.

Research output: Contribution to journalArticleScientificpeer-review

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T1 - Thermal radiation in a room

T2 - An improved progressive refinement method

AU - Tuomaala, Pekka

AU - Piira, Kalevi

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N2 - A new approach is described for the calculation of radiative heat transfer within buildings. The progressive refinement method together and a fast view factor estimation algorithm are introduced, implemented and tested. Results obtained by the Improved Progressive Refinement Method (IPRM) are compared with the results from the standard matrix method and an earlier study. This paper also demonstrates how the IPRM is capable of evaluating the distribution of heat flux on wall surfaces iteratively to a desired accuracy level, and with no need to store view factors between all sub-surfaces concurrently. In other words, IPRM allows a more realistic evaluation of nonuniform thermal radiation of a space into a desired accuracy level, while requiring less computer time and memory.

AB - A new approach is described for the calculation of radiative heat transfer within buildings. The progressive refinement method together and a fast view factor estimation algorithm are introduced, implemented and tested. Results obtained by the Improved Progressive Refinement Method (IPRM) are compared with the results from the standard matrix method and an earlier study. This paper also demonstrates how the IPRM is capable of evaluating the distribution of heat flux on wall surfaces iteratively to a desired accuracy level, and with no need to store view factors between all sub-surfaces concurrently. In other words, IPRM allows a more realistic evaluation of nonuniform thermal radiation of a space into a desired accuracy level, while requiring less computer time and memory.

U2 - 10.1177/014362440002100102

DO - 10.1177/014362440002100102

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JO - Building Services Engineering Research and Technology

JF - Building Services Engineering Research and Technology

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