Water vapor adsorption in porous building materials: experimental measurement and theoretical analysis

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F12%3A00188791" target="_blank" >RIV/68407700:21110/12:00188791 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1007/s11242-011-9884-9" target="_blank" >http://dx.doi.org/10.1007/s11242-011-9884-9</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s11242-011-9884-9" target="_blank" >10.1007/s11242-011-9884-9</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Water vapor adsorption in porous building materials: experimental measurement and theoretical analysis

Popis výsledku v původním jazyce

An experimental and theoretical analysis of the water vapor adsorption in several types of porous building materials is presented. For the measurement of adsorption isotherms, a DVS-Advantage water sorption device is used. The experimental data is analyzed using theoretical formulas based on the BET, BSB, BDDT, and FHH isotherms, assuming a mono- as well as multi-layer water vapor adsorption. The BSB equation is found to provide a good approximation for the relative humidities below 0.6 - 0.7, whereas the FHH equation shows a sufficient accuracy for the relative humidities above 0.4 - 0.5. Based on a combination of BSB and FHH isotherms, a semi-empirical formula is proposed that allows one to obtain a very accurate approximation of experimental data for all analyzed materials and all values of the relative humidity.

Název v anglickém jazyce

Water vapor adsorption in porous building materials: experimental measurement and theoretical analysis

Popis výsledku anglicky

An experimental and theoretical analysis of the water vapor adsorption in several types of porous building materials is presented. For the measurement of adsorption isotherms, a DVS-Advantage water sorption device is used. The experimental data is analyzed using theoretical formulas based on the BET, BSB, BDDT, and FHH isotherms, assuming a mono- as well as multi-layer water vapor adsorption. The BSB equation is found to provide a good approximation for the relative humidities below 0.6 - 0.7, whereas the FHH equation shows a sufficient accuracy for the relative humidities above 0.4 - 0.5. Based on a combination of BSB and FHH isotherms, a semi-empirical formula is proposed that allows one to obtain a very accurate approximation of experimental data for all analyzed materials and all values of the relative humidity.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

JN - Stavebnictví

OECD FORD obor

—

Projekt

—

Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2012

Kód důvěrnosti údajů

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

Název periodika

Transport in Porous Media

ISSN

0169-3913

e-ISSN

—

Svazek periodika

91

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

16

Strana od-do

939-954

Kód UT WoS článku

000299328000012

EID výsledku v databázi Scopus

—