Computational simulation of hygrothermal performance of hollow brick-based building envelopes

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F14%3A00218235" target="_blank" >RIV/68407700:21110/14:00218235 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Computational simulation of hygrothermal performance of hollow brick-based building envelopes

Popis výsledku v původním jazyce

Computational analysis of hygrothermal performance of several types of hollow-brick based building envelopes is presented, aimed at the optimal hygric properties of hollow brick and exterior plaster. In the simulations, Künzel?s mathematical model of coupled heat and moisture transport is used. Dynamic climatic data in a form of Test Reference Year for Prague are utilized as boundary conditions. The computational results show that for a suitable hygrothermal performance of the analyzed envelopes the keyfactor is the hygric properties of the exterior plaster, whose value of moisture diffusivity has to be reduced to at least 1 10-10 m2/s, e.g. using hydrophobic agents. In that case, moisture content can be held under the hygroscopic threshold for almostthe whole reference year, which ensures the elimination of the presence of liquid moisture inside the envelope..

Název v anglickém jazyce

Computational simulation of hygrothermal performance of hollow brick-based building envelopes

Popis výsledku anglicky

Computational analysis of hygrothermal performance of several types of hollow-brick based building envelopes is presented, aimed at the optimal hygric properties of hollow brick and exterior plaster. In the simulations, Künzel?s mathematical model of coupled heat and moisture transport is used. Dynamic climatic data in a form of Test Reference Year for Prague are utilized as boundary conditions. The computational results show that for a suitable hygrothermal performance of the analyzed envelopes the keyfactor is the hygric properties of the exterior plaster, whose value of moisture diffusivity has to be reduced to at least 1 10-10 m2/s, e.g. using hydrophobic agents. In that case, moisture content can be held under the hygroscopic threshold for almostthe whole reference year, which ensures the elimination of the presence of liquid moisture inside the envelope..

Druh

D - Stať ve sborníku

CEP obor

JN - Stavebnictví

OECD FORD obor

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Projekt

<a href="/cs/project/FR-TI3%2F085" target="_blank" >FR-TI3/085: Energeticky úsporné cihlové budovy</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2014

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

10th Nordic Symposium on Building Physics

ISBN

978-91-88722-53-9

ISSN

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e-ISSN

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Počet stran výsledku

8

Strana od-do

223-230

Název nakladatele

Lund University

Místo vydání

Lund

Místo konání akce

Lund

Datum konání akce

15. 6. 2014

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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