Roof windows – solutions and limitations

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21720%2F20%3A00346551" target="_blank" >RIV/68407700:21720/20:00346551 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1088/1755-1315/588/4/042023" target="_blank" >https://doi.org/10.1088/1755-1315/588/4/042023</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1088/1755-1315/588/4/042023" target="_blank" >10.1088/1755-1315/588/4/042023</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Roof windows – solutions and limitations

Popis výsledku v původním jazyce

Paper deals with the roof windows (skylights) from building physics point of view. Based on several introductory analyses an innovative solution of the frame and sash construction was developed in close cooperation with the industrial partner. Resulting parameters correspond to requirements set for passive house level windows (minimized heat transfer, avoided risk of water vapor condensation). The frame and sash consist of effective combination of soft wood and hardened plastics. Glazing unit can be traditional, triple glazed, or double glazed with additional two transparent foils dividing the space into 3 cavities. The analyses also showed that the effect of sloping, and the effect of thermal coupling between window and roof, play a significant role in the overall performance. Thermal transmittance of the roof window, Uw, in the best category developed here, is 0.50 W/(m2K). When both the effects are included, its real thermal transmittance, Ureal, is increased to 0.82 W/(m2K). Further development ideas and impulses for theoretical studies are mentioned in the final part of the paper.

Název v anglickém jazyce

Roof windows – solutions and limitations

Popis výsledku anglicky

Paper deals with the roof windows (skylights) from building physics point of view. Based on several introductory analyses an innovative solution of the frame and sash construction was developed in close cooperation with the industrial partner. Resulting parameters correspond to requirements set for passive house level windows (minimized heat transfer, avoided risk of water vapor condensation). The frame and sash consist of effective combination of soft wood and hardened plastics. Glazing unit can be traditional, triple glazed, or double glazed with additional two transparent foils dividing the space into 3 cavities. The analyses also showed that the effect of sloping, and the effect of thermal coupling between window and roof, play a significant role in the overall performance. Thermal transmittance of the roof window, Uw, in the best category developed here, is 0.50 W/(m2K). When both the effects are included, its real thermal transmittance, Ureal, is increased to 0.82 W/(m2K). Further development ideas and impulses for theoretical studies are mentioned in the final part of the paper.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

20101 - Civil engineering

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2020

Kód důvěrnosti údajů

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

Název statě ve sborníku

IOP Conference Series: Earth and Environmental Science

ISBN

—

ISSN

1755-1307

e-ISSN

1755-1315

Počet stran výsledku

6

Strana od-do

—

Název nakladatele

IOP Publishing Ltd

Místo vydání

Bristol

Místo konání akce

Gothenburg

Datum konání akce

2. 11. 2020

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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