Physical and mathematical models of hygrothermal processes in historical building envelopes

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F17%3A00316222" target="_blank" >RIV/68407700:21110/17:00316222 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1063/1.5012416" target="_blank" >http://dx.doi.org/10.1063/1.5012416</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1063/1.5012416" target="_blank" >10.1063/1.5012416</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Physical and mathematical models of hygrothermal processes in historical building envelopes

Popis výsledku v původním jazyce

Hygrothermal performance of a sandstone wall is assessed using three different mathematical models fordescription of coupled heat and moisture transport in porous building materials. Diffusion types of mathematical modelsare considered as they are usually used in the field of building physics. While Grunewald’s and Künzel’s models providesimilar results, the enhanced Künzel’s model gives different data as it treats the moisture transport more sensitively,distinguishing the particular moisture phases. The different hygric performance is subsequently reflected also in the thermal performance of sandstone because of moisture dependency of its heat transport and accumulation properties. Being different by up to 10 percentage points of RH and 3 K, the enhanced Künzel’s model can be considered as significantly more precise. Therefore, it is recommended for further simulations of hygrothermal performance of historical building envelopes.

Název v anglickém jazyce

Physical and mathematical models of hygrothermal processes in historical building envelopes

Popis výsledku anglicky

Hygrothermal performance of a sandstone wall is assessed using three different mathematical models fordescription of coupled heat and moisture transport in porous building materials. Diffusion types of mathematical modelsare considered as they are usually used in the field of building physics. While Grunewald’s and Künzel’s models providesimilar results, the enhanced Künzel’s model gives different data as it treats the moisture transport more sensitively,distinguishing the particular moisture phases. The different hygric performance is subsequently reflected also in the thermal performance of sandstone because of moisture dependency of its heat transport and accumulation properties. Being different by up to 10 percentage points of RH and 3 K, the enhanced Künzel’s model can be considered as significantly more precise. Therefore, it is recommended for further simulations of hygrothermal performance of historical building envelopes.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

60101 - History (history of science and technology to be 6.3, history of specific sciences to be under the respective headings)

Projekt

<a href="/cs/project/DG16P02H046" target="_blank" >DG16P02H046: Vnitřní zateplovací systémy pro oblast architektonického dědictví</a><br>

Návaznosti

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

Rok uplatnění

2017

Kód důvěrnosti údajů

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

Název statě ve sborníku

Proceedings of the International Conference of Computational Methods in Sciences and Engineering 2017

ISBN

978-0-7354-1596-6

ISSN

—

e-ISSN

1551-7616

Počet stran výsledku

4

Strana od-do

—

Název nakladatele

AIP Conference Proceedings

Místo vydání

New York

Místo konání akce

Thessaloniki

Datum konání akce

21. 4. 2017

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

000419835900125