Numerical analysis of temperature profiles during thermal modification of wood: chemical reactions and experimental verification

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62156489%3A43410%2F15%3A43906606" target="_blank" >RIV/62156489:43410/15:43906606 - isvavai.cz</a>

Výsledek na webu

<a href="http://www.degruyter.com/view/j/hfsg.2015.69.issue-3/hf-2014-0118/hf-2014-0118.xml" target="_blank" >http://www.degruyter.com/view/j/hfsg.2015.69.issue-3/hf-2014-0118/hf-2014-0118.xml</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1515/hf-2014-0118" target="_blank" >10.1515/hf-2014-0118</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Numerical analysis of temperature profiles during thermal modification of wood: chemical reactions and experimental verification

Popis výsledku v původním jazyce

Numerical analysis of temperature profiles during thermal modification of wood was carried out. The numerical solution - based on finite element analysis, FEA - of the 3D problem of transient nonlinear heat transfer model is presented for wood as a typical anisotropic material. The numerical model was enhanced for describing chemical reactions of cellulose, hemicelluloses and lignin (pyrolysis model), which takes into account the exothermic reactions as an internal source of heat energy. Experimental aswell as theoretical process schedules were applied and the influence of sample dimensions (sample geometry) and wood species was studied. The influence of wood species was negligible on heating time to reach the highest temperature, i.e., the temperature differences were about 2 degrees C during the drying phase. A expected, the sample size played an important role in the heating duration and in terms of the exothermic reactions of wood. The experimental and numerical data are generally

Název v anglickém jazyce

Numerical analysis of temperature profiles during thermal modification of wood: chemical reactions and experimental verification

Popis výsledku anglicky

Numerical analysis of temperature profiles during thermal modification of wood was carried out. The numerical solution - based on finite element analysis, FEA - of the 3D problem of transient nonlinear heat transfer model is presented for wood as a typical anisotropic material. The numerical model was enhanced for describing chemical reactions of cellulose, hemicelluloses and lignin (pyrolysis model), which takes into account the exothermic reactions as an internal source of heat energy. Experimental aswell as theoretical process schedules were applied and the influence of sample dimensions (sample geometry) and wood species was studied. The influence of wood species was negligible on heating time to reach the highest temperature, i.e., the temperature differences were about 2 degrees C during the drying phase. A expected, the sample size played an important role in the heating duration and in terms of the exothermic reactions of wood. The experimental and numerical data are generally

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

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

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

Rok uplatnění

2015

Kód důvěrnosti údajů

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

Název periodika

Holzforschung

ISSN

0018-3830

e-ISSN

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Svazek periodika

69

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

8

Strana od-do

321-328

Kód UT WoS článku

000351928400010

EID výsledku v databázi Scopus

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