EXPERIMENTAL AND THEORETICAL ANALYSIS OF WATER VAPOR ACCUMULATION IN POROUS BUILDING MATERIALS

Kód výsledku v IS VaVaI

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Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

EXPERIMENTAL AND THEORETICAL ANALYSIS OF WATER VAPOR ACCUMULATION IN POROUS BUILDING MATERIALS

Popis výsledku v původním jazyce

In this paper, we focused on an experimental and theoretical analysis of the water vapor adsorption in several types of traditional porous building materials. The studied materials are characterized by their bulk density, matrix density, and total open porosity. A dynamic vapor sorption device is used to determine the sorption isotherms at 20 °C. The instrument measures the uptake and loss of vapor gravimetrically, using highly precise balances having the resolution of 1.0 μg. The experimentally accessed sorption isotherms are analyzed by several theoretical models and the mechanisms of vapor storage in studied materials are discussed. The generalized D’Arcy’s and Watt’s model (GDW) assuming any ratio of sorption on primary and secondary centers is identified as the most suitable theoretical model giving the best approximation of measured sorption data.

Název v anglickém jazyce

EXPERIMENTAL AND THEORETICAL ANALYSIS OF WATER VAPOR ACCUMULATION IN POROUS BUILDING MATERIALS

Popis výsledku anglicky

In this paper, we focused on an experimental and theoretical analysis of the water vapor adsorption in several types of traditional porous building materials. The studied materials are characterized by their bulk density, matrix density, and total open porosity. A dynamic vapor sorption device is used to determine the sorption isotherms at 20 °C. The instrument measures the uptake and loss of vapor gravimetrically, using highly precise balances having the resolution of 1.0 μg. The experimentally accessed sorption isotherms are analyzed by several theoretical models and the mechanisms of vapor storage in studied materials are discussed. The generalized D’Arcy’s and Watt’s model (GDW) assuming any ratio of sorption on primary and secondary centers is identified as the most suitable theoretical model giving the best approximation of measured sorption data.

Druh

D - Stať ve sborníku

CEP obor

JN - Stavebnictví

OECD FORD obor

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Projekt

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Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2016

Kód důvěrnosti údajů

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

Název statě ve sborníku

PROCEEDINGS OF THE CESBP Central European Symposium on Building Physics AND BauSIM 2016 September 14

ISBN

978-3-8167-9798-2

ISSN

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e-ISSN

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Počet stran výsledku

6

Strana od-do

739-744

Název nakladatele

Fraunhofer IRB Verlag

Místo vydání

Stuttgart

Místo konání akce

Drážďany

Datum konání akce

14. 9. 2016

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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