The Assessment of Construction Details in Terms of 3D Thermal Fields and the Impact on Building Design

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26110%2F19%3APU136293" target="_blank" >RIV/00216305:26110/19:PU136293 - isvavai.cz</a>

Výsledek na webu

<a href="https://iopscience.iop.org/article/10.1088/1755-1315/290/1/012097/pdf" target="_blank" >https://iopscience.iop.org/article/10.1088/1755-1315/290/1/012097/pdf</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1088/1755-1315/290/1/012097" target="_blank" >10.1088/1755-1315/290/1/012097</a>

Jazyk výsledku

angličtina

Název v původním jazyce

The Assessment of Construction Details in Terms of 3D Thermal Fields and the Impact on Building Design

Popis výsledku v původním jazyce

Thermal bridge is a very common and undesirable phenomenon in a building. Thermal joint (bridge) is usually based on material or geometry reasons or their combinations. Many types (connection of window – wall, pillar – wall), can be calculated and evaluated sufficiently in 2D section, but in some types it is necessary to take into account 3D heat conduction. For example: a corner with ceiling (roof) and two walls where is strong deformation of isotherms and the internal surface temperature is definitely lower than in 2D section. According to the Czech Technical Standard it is necessary to fulfil law requirement – Temperature Factor at internal surface lowest temperature "at each location". Recommendation is solving of "differential equation multi-dimensional of thermal field". In this case of "building corner" project engineer has to decide for 3D modelling. In the contribution there is presented a mistake in 2D model, the situation when it is necessary to use 3D model. Additionally, there are recommendations to eliminate the risk of condensation and mould.

Název v anglickém jazyce

The Assessment of Construction Details in Terms of 3D Thermal Fields and the Impact on Building Design

Popis výsledku anglicky

Thermal bridge is a very common and undesirable phenomenon in a building. Thermal joint (bridge) is usually based on material or geometry reasons or their combinations. Many types (connection of window – wall, pillar – wall), can be calculated and evaluated sufficiently in 2D section, but in some types it is necessary to take into account 3D heat conduction. For example: a corner with ceiling (roof) and two walls where is strong deformation of isotherms and the internal surface temperature is definitely lower than in 2D section. According to the Czech Technical Standard it is necessary to fulfil law requirement – Temperature Factor at internal surface lowest temperature "at each location". Recommendation is solving of "differential equation multi-dimensional of thermal field". In this case of "building corner" project engineer has to decide for 3D modelling. In the contribution there is presented a mistake in 2D model, the situation when it is necessary to use 3D model. Additionally, there are recommendations to eliminate the risk of condensation and mould.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

20103 - Architecture engineering

Projekt

<a href="/cs/project/2A-3TP1%2F090" target="_blank" >2A-3TP1/090: Speciální kompozitní materiály s vysokou schopností akumulace infračerveného záření.</a><br>

Návaznosti

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

Rok uplatnění

2019

Kód důvěrnosti údajů

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

Název statě ve sborníku

Central Europe towards Sustainable Building (CESB19), IOP Conference Series: Earth and Environmental Science

ISBN

9781510890770

ISSN

1755-1307

e-ISSN

—

Počet stran výsledku

7

Strana od-do

124-133

Název nakladatele

IOP Publishing Ltd

Místo vydání

Praha

Místo konání akce

Praha

Datum konání akce

2. 7. 2019

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

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