The longwave sky radiation effect on the condensation risk of ventilated double-skin roof structures
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62156489%3A43410%2F20%3A43918465" target="_blank" >RIV/62156489:43410/20:43918465 - isvavai.cz</a>
Alternative codes found
RIV/00216305:26110/20:PU137907
Result on the web
<a href="https://doi.org/10.1063/5.0025698" target="_blank" >https://doi.org/10.1063/5.0025698</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1063/5.0025698" target="_blank" >10.1063/5.0025698</a>
Alternative languages
Result language
angličtina
Original language name
The longwave sky radiation effect on the condensation risk of ventilated double-skin roof structures
Original language description
The condensation risk of the top envelope of low sloped roofs with air ventilated cavity has an important factor in the designing phase of these building structures. The significance of sky radiation plays an important role in the radiation heat exchange specifically during night-time (winter and transient periods) with regard to heat loss and condensation risk at the top roof envelopes. Basically, the design principles and current development of standard requirements have limited and simplified implementation of this phenomenon. The importance of a relevant design of these types of roofs are being addressed as highly important issue in the building application to predict its reliable hygrothermal performance. In this context, the paper presents results of numerical study, where thy sky radiation effect is carefully taken into account. It provides a numerical analysis on the minimalization of the condensation risk at the top envelope of low sloped roofs with naturally ventilated air cavity. Based on this, a performance prediction of thermal properties degree and its influence due to condensation risk occurrence is obtained, where real climate data for location of Brno, Czechia, is specifically employed. The results demonstrate hour's quantity of condensation risk occurrence in terms of thermal resistance correlation for data obtained through the whole climatic year.
Czech name
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
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OECD FORD branch
20101 - Civil engineering
Result continuities
Project
<a href="/en/project/GA20-00630S" target="_blank" >GA20-00630S: Climate responsive components integrated in energy and environmentally efficient building envelope</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
AIP Conference Proceedings 2275
ISBN
978-0-7354-4005-0
ISSN
0094-243X
e-ISSN
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Number of pages
6
Pages from-to
020027
Publisher name
American Institute of Physics (AIP)
Place of publication
Melville
Event location
Eger
Event date
Sep 2, 2020
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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