Thermophysical properties of medium density fiberboards measured by quasi-stationary method: experimental and numerical evaluation

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62156489%3A43410%2F17%3A43909725" target="_blank" >RIV/62156489:43410/17:43909725 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1007/s00231-016-1793-6" target="_blank" >http://dx.doi.org/10.1007/s00231-016-1793-6</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s00231-016-1793-6" target="_blank" >10.1007/s00231-016-1793-6</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Thermophysical properties of medium density fiberboards measured by quasi-stationary method: experimental and numerical evaluation

Popis výsledku v původním jazyce

This paper presents an experimental measurement of thermal properties of medium density fiberboards with different thicknesses (12, 18 and 25 mm) and sample sizes (50 x 50 mm and 100 x 100 mm) by quasi-stationary method. The quasi-stationary method is a transient method which allows measurement of three thermal parameters (thermal conductivity, thermal diffusivity and heat capacity). The experimentally gained values were used to verify a numerical model and furthermore served as input parameters for the numerical probabilistic analysis. The sensitivity of measured outputs (time course of temperature) to influential factors (density, heat transfer coefficient and thermal conductivities) was established and described by the Spearman&apos;s rank correlation coefficients. The dependence of thermal properties on density was confirmed by the data measured. Density was also proved to be an important factor for sensitivity analyses as it highly correlated with all output parameters. The accuracy of the measurement method can be improved based on the results of the probabilistic analysis. The relevancy of the experiment is mainly influenced by the choice of a proper ratio between thickness and width of samples.

Název v anglickém jazyce

Thermophysical properties of medium density fiberboards measured by quasi-stationary method: experimental and numerical evaluation

Popis výsledku anglicky

This paper presents an experimental measurement of thermal properties of medium density fiberboards with different thicknesses (12, 18 and 25 mm) and sample sizes (50 x 50 mm and 100 x 100 mm) by quasi-stationary method. The quasi-stationary method is a transient method which allows measurement of three thermal parameters (thermal conductivity, thermal diffusivity and heat capacity). The experimentally gained values were used to verify a numerical model and furthermore served as input parameters for the numerical probabilistic analysis. The sensitivity of measured outputs (time course of temperature) to influential factors (density, heat transfer coefficient and thermal conductivities) was established and described by the Spearman&apos;s rank correlation coefficients. The dependence of thermal properties on density was confirmed by the data measured. Density was also proved to be an important factor for sensitivity analyses as it highly correlated with all output parameters. The accuracy of the measurement method can be improved based on the results of the probabilistic analysis. The relevancy of the experiment is mainly influenced by the choice of a proper ratio between thickness and width of samples.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20502 - Paper and wood

Projekt

<a href="/cs/project/EE2.3.20.0269" target="_blank" >EE2.3.20.0269: Vytvoření mezinárodního vědecko-výzkumného týmu pro vývoj nových materiálů na bázi dřeva</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 periodika

Heat and Mass Transfer/Waerme- und Stoffuebertragung

ISSN

0947-7411

e-ISSN

—

Svazek periodika

53

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

11

Strana od-do

115-125

Kód UT WoS článku

000391384700011

EID výsledku v databázi Scopus

2-s2.0-84962190499