PREDICTION OF BIOFILMS COLONIZATION PROCESS USING COMPUTATIONAL MODELLING TECHNIQUE

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F21%3A00373982" target="_blank" >RIV/68407700:21110/21:00373982 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.5593/sgem2021/6.1/s26.49" target="_blank" >http://dx.doi.org/10.5593/sgem2021/6.1/s26.49</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.5593/sgem2021/6.1/s26.49" target="_blank" >10.5593/sgem2021/6.1/s26.49</a>

Jazyk výsledku

angličtina

Název v původním jazyce

PREDICTION OF BIOFILMS COLONIZATION PROCESS USING COMPUTATIONAL MODELLING TECHNIQUE

Popis výsledku v původním jazyce

Biofilms on exterior plasters deserve an attention as they affect not only the aesthetical appearance of buildings, but also their hygric and thermal performance that can subsequently results in an initiation of degradation processes. Understanding of biofilms growth mechanisms can be therefore efficiently exploited to avoid such conditions that are convenient for their propagation. This paper therefore combines experimental and computational techniques to predict the biofilms growth rate on lime plasters when exposed to climatic conditions of two selected Central European cities. Various thermal insulations are considered to investigate their influence on the biofilms growth rate. Once a correlation between the growth rate and hygrothermal patterns is determined experimentally, the data are exploited in postprocessing of surface conditions (temperature, relative humidity) obtained using computational modelling. The results obtained have rather a comparative character as there are still some simplifications adopted, which are irrelevant when drawing a comparison between particular cases studied. It has been shown that the thermal insulation does not have a significant impact on the growth rate, wood fiberboard showed the best performance with a minimal difference, but the location of the wall assembly studied plays the key role. Within this research that considers two Czech cities, the difference in the growth rate was nearly 300%.

Název v anglickém jazyce

PREDICTION OF BIOFILMS COLONIZATION PROCESS USING COMPUTATIONAL MODELLING TECHNIQUE

Popis výsledku anglicky

Biofilms on exterior plasters deserve an attention as they affect not only the aesthetical appearance of buildings, but also their hygric and thermal performance that can subsequently results in an initiation of degradation processes. Understanding of biofilms growth mechanisms can be therefore efficiently exploited to avoid such conditions that are convenient for their propagation. This paper therefore combines experimental and computational techniques to predict the biofilms growth rate on lime plasters when exposed to climatic conditions of two selected Central European cities. Various thermal insulations are considered to investigate their influence on the biofilms growth rate. Once a correlation between the growth rate and hygrothermal patterns is determined experimentally, the data are exploited in postprocessing of surface conditions (temperature, relative humidity) obtained using computational modelling. The results obtained have rather a comparative character as there are still some simplifications adopted, which are irrelevant when drawing a comparison between particular cases studied. It has been shown that the thermal insulation does not have a significant impact on the growth rate, wood fiberboard showed the best performance with a minimal difference, but the location of the wall assembly studied plays the key role. Within this research that considers two Czech cities, the difference in the growth rate was nearly 300%.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

20506 - Coating and films

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

2021

Kód důvěrnosti údajů

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

Název statě ve sborníku

21th International Multidisciplinary Scientific Geoconference SGEM 2021 Conference Proceedings

ISBN

978-619-7603-30-9

ISSN

1314-2704

e-ISSN

—

Počet stran výsledku

8

Strana od-do

237-244

Název nakladatele

STEF92 Technology Ltd.

Místo vydání

Sofia

Místo konání akce

Albena

Datum konání akce

14. 8. 2021

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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