Retrofitting of building envelopes: Evaluation of effectiveness using weather-affected material parameters

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F18%3A00324472" target="_blank" >RIV/68407700:21110/18:00324472 - isvavai.cz</a>

Výsledek na webu

<a href="http://iopscience.iop.org/article/10.1088/1757-899X/415/1/012009" target="_blank" >http://iopscience.iop.org/article/10.1088/1757-899X/415/1/012009</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1088/1757-899X/415/1/012009" target="_blank" >10.1088/1757-899X/415/1/012009</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Retrofitting of building envelopes: Evaluation of effectiveness using weather-affected material parameters

Popis výsledku v původním jazyce

Thermal performance of a brick wall after retrofitting is investigated by means of computational modelling of coupled heat and moisture transport. In the first step, temperature and moisture distribution over a reference year (Prague) is estimated, being subsequently used for the calculation of heat transmission through the envelope. Then, the annual energy balance is expressed. The simulations are carried out using both reference material parameters and weather-affected data of the brick. The comparison of results indicates that weathering may have a positive effect on the thermal performance of brick walls as it can contribute to a decrease of annual energy balance by ~ 2%. It means that this change can be considered on the safe side, without a risk of overestimation of thermal insulating capabilities of brick walls after retrofitting. The thermal assessment of several retrofitting alternatives reveals that hydrophobic mineral wool applied on the exterior side presents the most favourable option.

Název v anglickém jazyce

Retrofitting of building envelopes: Evaluation of effectiveness using weather-affected material parameters

Popis výsledku anglicky

Thermal performance of a brick wall after retrofitting is investigated by means of computational modelling of coupled heat and moisture transport. In the first step, temperature and moisture distribution over a reference year (Prague) is estimated, being subsequently used for the calculation of heat transmission through the envelope. Then, the annual energy balance is expressed. The simulations are carried out using both reference material parameters and weather-affected data of the brick. The comparison of results indicates that weathering may have a positive effect on the thermal performance of brick walls as it can contribute to a decrease of annual energy balance by ~ 2%. It means that this change can be considered on the safe side, without a risk of overestimation of thermal insulating capabilities of brick walls after retrofitting. The thermal assessment of several retrofitting alternatives reveals that hydrophobic mineral wool applied on the exterior side presents the most favourable option.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

20501 - Materials engineering

Projekt

<a href="/cs/project/GBP105%2F12%2FG059" target="_blank" >GBP105/12/G059: Kumulativní časově závislé procesy ve stavebních materiálech a konstrukcích</a><br>

Návaznosti

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

Rok uplatnění

2018

Kód důvěrnosti údajů

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

Název statě ve sborníku

IOP Conference Series: Materials Science and Engineering

ISBN

—

ISSN

1757-899X

e-ISSN

1757-899X

Počet stran výsledku

6

Strana od-do

—

Název nakladatele

IOP Publishing

Místo vydání

London

Místo konání akce

Krakow

Datum konání akce

11. 9. 2018

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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