Exterior thermal insulation systems and their influence on surface hygrothermal conditions

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F20%3A00342925" target="_blank" >RIV/68407700:21110/20:00342925 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1063/5.0025888" target="_blank" >https://doi.org/10.1063/5.0025888</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1063/5.0025888" target="_blank" >10.1063/5.0025888</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Exterior thermal insulation systems and their influence on surface hygrothermal conditions

Popis výsledku v původním jazyce

The building envelopes with higher thermal resistance contribute to a better thermal protection of buildings. On the other hand, external surface temperature of walls have dropped due to a reduced heat flux through the walls which may result in increased risks of moisture condensation and creation of favorable conditions for biofilms growth. This paper therefore investigates the influence of various types of thermal insulations on hygrothermal conditions of the wall surface. Using computational modelling of coupled heat and moisture transport, the predicted hygrothermal patterns are confronted with the optimal zones given by isopleth growth models. Based on that it is revealed, that under climatic conditions of Brno and Hradec Kralove (Czech Republic), up to 184 favorable hours a reference year may be counted. The mineral wool under the lime plaster provides the most favorable conditions for the biofilms growth among all the investigated variations. However, the influence of the insulation type is not as significant as the weather conditions. From this point of view, Brno provides a better environment for the biofilms growth.

Název v anglickém jazyce

Exterior thermal insulation systems and their influence on surface hygrothermal conditions

Popis výsledku anglicky

The building envelopes with higher thermal resistance contribute to a better thermal protection of buildings. On the other hand, external surface temperature of walls have dropped due to a reduced heat flux through the walls which may result in increased risks of moisture condensation and creation of favorable conditions for biofilms growth. This paper therefore investigates the influence of various types of thermal insulations on hygrothermal conditions of the wall surface. Using computational modelling of coupled heat and moisture transport, the predicted hygrothermal patterns are confronted with the optimal zones given by isopleth growth models. Based on that it is revealed, that under climatic conditions of Brno and Hradec Kralove (Czech Republic), up to 184 favorable hours a reference year may be counted. The mineral wool under the lime plaster provides the most favorable conditions for the biofilms growth among all the investigated variations. However, the influence of the insulation type is not as significant as the weather conditions. From this point of view, Brno provides a better environment for the biofilms growth.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

20501 - Materials engineering

Projekt

<a href="/cs/project/GA19-01558S" target="_blank" >GA19-01558S: Vliv biofilmů na tepelně-vlhkostní chování fasádních materiálů</a><br>

Návaznosti

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

Rok uplatnění

2020

Kód důvěrnosti údajů

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

Název statě ve sborníku

AIP Conference Proceedings 2275

ISBN

978-0-7354-4005-0

ISSN

—

e-ISSN

1551-7616

Počet stran výsledku

6

Strana od-do

—

Název nakladatele

AIP Publishing, APL, the American Institute of Physics

Místo vydání

Melville, NY

Místo konání akce

Eger

Datum konání akce

2. 9. 2020

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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