Hygrothermal performance of wall segment under conditions allowing ice forming processes

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F19%3A00334529" target="_blank" >RIV/68407700:21110/19:00334529 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.5593/sgem2019/6.2/S26.020" target="_blank" >http://dx.doi.org/10.5593/sgem2019/6.2/S26.020</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.5593/sgem2019/6.2/S26.020" target="_blank" >10.5593/sgem2019/6.2/S26.020</a>

Result language
angličtina
Original language name
Hygrothermal performance of wall segment under conditions allowing ice forming processes
Original language description
This paper deals with validation of an enhanced mathematical model for description of coupled heat and moisture transport which is able to model ice forming processes. This phenomenon is usually neglected because of computational difficulties even if it has a significant influence on heat and moisture transport. For the sake of model validation, data gathered by means of semi-scale experiment was used, analyzing a hygrothermal performance of a real building assembly – an external wall. The wall was exposed to dynamic climatic conditions of Olomouc in form of test reference year between January and March, when the temperature drops often below zero. Assuming the water/ice phase change, the hygrothermal performance was determined experimentally as well as computationally and the data was compared. The low root mean square error (1.141 °C and 5.699 %RH) showed that the mathematical model provides precise results and can be applied for building energy calculations in cold region climates.
Czech name
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Czech description
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Project
<a href="/en/project/GA17-01365S" target="_blank" >GA17-01365S: Modelling and experimental verification of the effect of freeze-thaw cycles on the degradation of porous building materials</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
19th International Multidisciplinary Scientific Geoconference SGEM 2019
ISBN
978-619-7408-89-8
ISSN
1314-2704
e-ISSN
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Number of pages
8
Pages from-to
155-162
Publisher name
STEF92 Technology Ltd.
Place of publication
Sofia
Event location
Albena
Event date
Jun 30, 2019
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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