3D Modeling and Visualization of Non-Stationary Temperature Distribution during Heating of Frozen Wood

A 3-dimensional mathematical model has been developed, solved, and verified for the transient non-linear heat conduction in frozen and non-frozen wood with prismatic shape at arbitrary initial and boundary conditions encountered in practice. The model takes into account for the first time the fiber...

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Autor principal:	Nencho Deliiski
Formato:	article
Lenguaje:	EN
Publicado:	University of Zagreb, Faculty of Forestry and Wood Technology 2014
Materias:	3D mathematical model frozen wood finite difference method temperature distribution contour plots Forestry SD1-669.5
Acceso en línea:	https://doaj.org/article/46f4d15067274c21bb875f938dd42cda
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spelling	oai:doaj.org-article:46f4d15067274c21bb875f938dd42cda2021-12-02T04:17:01Z3D Modeling and Visualization of Non-Stationary Temperature Distribution during Heating of Frozen Wood10.5552/drind.2013.13060012-67721847-1153https://doaj.org/article/46f4d15067274c21bb875f938dd42cda2014-01-01T00:00:00Zhttp://hrcak.srce.hr/file/166357https://doaj.org/toc/0012-6772https://doaj.org/toc/1847-1153A 3-dimensional mathematical model has been developed, solved, and verified for the transient non-linear heat conduction in frozen and non-frozen wood with prismatic shape at arbitrary initial and boundary conditions encountered in practice. The model takes into account for the first time the fiber saturation point of each wood species, ufsp, and the impact of the temperature on ufsp of frozen and non-frozen wood, which are then used to compute the current values of the thermal and physical characteristics in each separate volume point of the material subjected to defrosting. This paper presents solutions of the model with the explicit form of the finite-difference method. Results of simulation investigation of the impact of frozen bound water, as well as of bound and free water, on 3D temperature distribution in the volume of beech and oak prisms with dimensions 0.4 x 0.4 x 0.8 m during their defrosting at the temperature of the processing medium of 80 oC are presented, analyzed and visualized through color contour plots.Nencho DeliiskiUniversity of Zagreb, Faculty of Forestry and Wood Technologyarticle3D mathematical modelfrozen woodfinite difference methodtemperature distributioncontour plotsForestrySD1-669.5ENDrvna Industrija, Vol 64, Iss 4, Pp 293-303 (2014)
institution	DOAJ
collection	DOAJ
language	EN
topic	3D mathematical model frozen wood finite difference method temperature distribution contour plots Forestry SD1-669.5
spellingShingle	3D mathematical model frozen wood finite difference method temperature distribution contour plots Forestry SD1-669.5 Nencho Deliiski 3D Modeling and Visualization of Non-Stationary Temperature Distribution during Heating of Frozen Wood
description	A 3-dimensional mathematical model has been developed, solved, and verified for the transient non-linear heat conduction in frozen and non-frozen wood with prismatic shape at arbitrary initial and boundary conditions encountered in practice. The model takes into account for the first time the fiber saturation point of each wood species, ufsp, and the impact of the temperature on ufsp of frozen and non-frozen wood, which are then used to compute the current values of the thermal and physical characteristics in each separate volume point of the material subjected to defrosting. This paper presents solutions of the model with the explicit form of the finite-difference method. Results of simulation investigation of the impact of frozen bound water, as well as of bound and free water, on 3D temperature distribution in the volume of beech and oak prisms with dimensions 0.4 x 0.4 x 0.8 m during their defrosting at the temperature of the processing medium of 80 oC are presented, analyzed and visualized through color contour plots.
format	article
author	Nencho Deliiski
author_facet	Nencho Deliiski
author_sort	Nencho Deliiski
title	3D Modeling and Visualization of Non-Stationary Temperature Distribution during Heating of Frozen Wood
title_short	3D Modeling and Visualization of Non-Stationary Temperature Distribution during Heating of Frozen Wood
title_full	3D Modeling and Visualization of Non-Stationary Temperature Distribution during Heating of Frozen Wood
title_fullStr	3D Modeling and Visualization of Non-Stationary Temperature Distribution during Heating of Frozen Wood
title_full_unstemmed	3D Modeling and Visualization of Non-Stationary Temperature Distribution during Heating of Frozen Wood
title_sort	3d modeling and visualization of non-stationary temperature distribution during heating of frozen wood
publisher	University of Zagreb, Faculty of Forestry and Wood Technology
publishDate	2014
url	https://doaj.org/article/46f4d15067274c21bb875f938dd42cda
work_keys_str_mv	AT nenchodeliiski 3dmodelingandvisualizationofnonstationarytemperaturedistributionduringheatingoffrozenwood
_version_	1718401307456307200

3D Modeling and Visualization of Non-Stationary Temperature Distribution during Heating of Frozen Wood

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