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Ing. Jakub Dömény, Ph.D.
Identification number: 26568
University e-mail: jakub.domeny [at] mendelu.cz
 
Výzkumník projektu I - Department of Wood Science and Technology (FFWT)
Assistant Professor - Department of Wood Science and Technology (FFWT)

     
Lesson
     
Final thesis
     
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The following list contains all information available to the publication.

DÖMÉNY, J. -- HESS, D. -- SUCHOMELOVÁ, P. -- ČERMÁK, P. Experimental Analysis of Mass Loss Kinetics During Heat Treatment of Wood. In Proceedings of the 2020 Society of Wood Science and Technology International Convention . Monona: Society of Wood Science and Technology, 2020, p. 516--522. ISBN 978-1-73404-850-6.

Original name:
Experimental Analysis of Mass Loss Kinetics During Heat Treatment of Wood
Czech name:
Written by (author):
Ing. Jakub Dömény, Ph.D.
Ing. Dominik Hess
Ing. Pavlína Suchomelová
Ing. Petr Čermák, Ph.D.
Department:
Department of Wood Science and Technology
Kind of publication:
article in proceedings
Collection:
Proceedings of the 2020 Society of Wood Science and Technology International Convention
Nature of article:
paper
Part number:
Starting page:
516
Up to page:
522
Number of pages:
7
UT code by Web of Science:
EID code by Scopus:
Original language:
English
Description in original language:
The mass loss kinetics during heat treatment of selected wood species was experimentally analyzed. European beech (Fagus sylvatica L.), English oak (Quercus robur L.), Norwegian spruce (Picea abies L. Karst.) and Scots pine (Pinus sylvestris L.) wood specimens were heat treated at 140oC, 160oC, 180oC, 200oC and 220oC for 1 to 6 hours using atmospheric pressure and superheated steam environment. The process intensity was determined by mass loss (ML), based on oven-dry mass before and after the heat treatment. Furthermore, the equilibrium moisture content (EMC) was determined before and after heat treatment to analyze the effect of mass loss on the sorption properties. For the studied wood species, the ML was found to be less than 1-1.5% when temperature of 140oC and 160oC was applied. Differences between studied species were more significant at temperatures higher than 160oC. At higher temperature (220oC) a mass loss attained of 13.5% (beech), 18.8% (oak), 6.7% (spruce) and 13.5% (pine). The EMC was reduced after heat treatment within the range of 4 - 48%, 0.4 - 47%, 1 - 32% and 0.7 - 40% for beech, oak, spruce and pine, respectively. The reason for the decrease of the EMC is that less water is absorbed by the cell wall after the heat treatment as a result of chemical compounds degradation with a decrease of hydroxyl (OH-) groups. Further, the EMC correlates exponentially (R2=0.91-0.95) with the decrease of specimens' mass depending on the used wood species and modification temperature applied. This study provides experimental mass loss results of various heat treated wood species and obtained data can be used for heat treatment process optimization as well as for the modeling and prediction of the mass loss and required material properties (EMC) for designed wooden products.
Description in English:
Description in Czech:
Year of submission:
2020
Year of transmission:
RIV identification number:
 
Entry made by: Mgr. Kamila Zoufalá
Last change: 08/11/2020 08:10 (Mgr. Kamila Zoufalá)

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Source specification:

Proceedings of the 2020 Society of Wood Science and Technology International Convention . Monona: Society of Wood Science and Technology, 2020. ISBN 978-1-73404-850-6.

Original name: Proceedings of the 2020 Society of Wood Science and Technology International Convention
English name:
Czech name:
Editor:
Kind of publication:
conference proceedings
ISBN:
978-1-73404-850-6
Publisher:
Society of Wood Science and Technology
Place of publishing: Monona
Form of publication:
electronic version (online)
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Year of publication:
2020
Issue number:
Number of pages:
Entry:
2020 Society of Wood Science and Technology (SWST) International Convention
Original language:
Description in original language:
Description in English:
Description in Czech:
 
Entry made by: Mgr. Kamila Zoufalá
Last change:
08/04/2020 08:23 (Mgr. Kamila Zoufalá)

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Source specification:

2020 Society of Wood Science and Technology (SWST) International Convention. 2020, Portorož.

Original name:
2020 Society of Wood Science and Technology (SWST) International Convention
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Kind of publication: holding a conference
Venue:
Portorož
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Time scope of event: worldwide event
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Held in year : 2020
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RIV identification number:
 
Entry made by:
Mgr. Kamila Zoufalá
Last change:
08/04/2020 08:23 (Mgr. Kamila Zoufalá)

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