Application of Effective Media Theory for Determination of Thermal Properties of Hollow Bricks as a Function of Moisture Content

Kód výsledku v IS VaVaI

RIV/68407700:21110/13:00206074 - isvavai.cz

Výsledek na webu

http://dx.doi.org/10.1007/s10765-012-1183-3

DOI - Digital Object Identifier

10.1007/s10765-012-1183-3

Jazyk výsledku

angličtina

Název v původním jazyce

Application of Effective Media Theory for Determination of Thermal Properties of Hollow Bricks as a Function of Moisture Content

Popis výsledku v původním jazyce

The effective thermal conductivity and effective specific heat capacity of hollow brick blocks are investigated as a function of moisture content.While the effective specific heat capacity as a heat storage parameter is calculated using the linear theoryof mixtures, the effective thermal conductivity as a heat transport parameter is analyzed using the effective media theory. At first, the effective thermal conductivity of the dry hollow brick block is calculated using a combination of properties of thebrick body and air cavities, and verified using experimental data. Then, the effective thermal conductivity of the brick body is analyzed as a function of moisture content both theoretically and experimentally, and appropriate homogenization formulas are identified. Finally, the effective thermal conductivity of the whole hollow bricks is expressed as a function of moisture content from the dry state to water saturation.

Název v anglickém jazyce

Application of Effective Media Theory for Determination of Thermal Properties of Hollow Bricks as a Function of Moisture Content

Popis výsledku anglicky

The effective thermal conductivity and effective specific heat capacity of hollow brick blocks are investigated as a function of moisture content.While the effective specific heat capacity as a heat storage parameter is calculated using the linear theoryof mixtures, the effective thermal conductivity as a heat transport parameter is analyzed using the effective media theory. At first, the effective thermal conductivity of the dry hollow brick block is calculated using a combination of properties of thebrick body and air cavities, and verified using experimental data. Then, the effective thermal conductivity of the brick body is analyzed as a function of moisture content both theoretically and experimentally, and appropriate homogenization formulas are identified. Finally, the effective thermal conductivity of the whole hollow bricks is expressed as a function of moisture content from the dry state to water saturation.

Druh

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

CEP obor

JJ - Ostatní materiály

OECD FORD obor

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Projekt

FR-TI2/007: *Výzkum a vývoj nové generace cihelných prvků jednovrstvého zdiva

Návaznosti

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

Rok uplatnění

2013

Kód důvěrnosti údajů

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

Název periodika

International Journal of Thermophysics

ISSN

0195-928X

e-ISSN

—

Svazek periodika

34

Číslo periodika v rámci svazku

5

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

15

Strana od-do

894-908

Kód UT WoS článku

000320806100012

EID výsledku v databázi Scopus

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