Numerical and experimental validation of thermo-hygro-mechanical behaviour of wood during drying process

Thibeault, F.; Marceau, Daniel; Younsi, R.; Kocaefe, Duygu

doi:10.1016/j.icheatmasstransfer.2010.04.005

Cited by 15 publications

(10 citation statements)

References 14 publications

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“…. .,(Δ ,̇) are determined recursively using (7) and (8). Therefore, the system characteristic curve can be readily determined by assuming different values oḟ1 within a range [0,̇1 ,max ], from which the corresponding total flow rate,̇, and pressure drop, Δ , are determined at the end of the recursive computation.…”

Section: Advances In Mechanical Engineeringmentioning

confidence: 99%

“…At the operating point, the flow rate,̇=̇, is computed at the entrance of the inlet plenum using the recurrence equation (8). Therefore, in addition tȯ, the corresponding flow rates,̇, , in each individual channel at stack level are also available, making it possible to estimate the individual channel velocities , =̇, / .…”

Section: Fan Performance Curve and Operating Pointmentioning

confidence: 99%

“…In a similar direction, Mohan and Talukdar [2] present a 3D computational model to study the convective drying of a moist object. More recently, two works assessing convective drying of wood have been reported in the literature [7,8]. Younsi et al [7] utilise a 3D model to compute the turbulent flow inside convective kilns and evolution of the temperature and moisture content.…”

Section: Introductionmentioning

confidence: 99%

“…Younsi et al [7] utilise a 3D model to compute the turbulent flow inside convective kilns and evolution of the temperature and moisture content. Thibeault et al [8] combine the Ansys CFX (heat and moisture transfer) and FESh++ (mechanical approximation) commercial codes to predict the thermo-hygro-mechanical behaviour of wood during convective drying. Most literature works involving convective drying focus only on the local physics of some particular moist object (small scale).…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Conjugated Heat and Mass Transfer in Convective Drying in Compact Wood Kilns: A System Approach

Vaz

Zdanski

Cerqueira

et al. 2013

Advances in Mechanical Engineering

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Drying is a required operation in timber manufacturing industries. Most drying processes utilise convective kilns, which involve coupling between transient heat and mass (moisture content) transfer in solids and convection in a flowing medium. In the present work, the flow field in the kiln is determined using a system approach based on a general head loss equation, whereas the coupling between transient heat and mass transfer in the timber is accomplished by a solution of a local differential model across the timber stack. The scheme is applied to study the effects of distinct geometric kiln configurations and air flow temperatures upon drying rates and moisture content.

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Section: Advances In Mechanical Engineeringmentioning

confidence: 99%

Section: Fan Performance Curve and Operating Pointmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Conjugated Heat and Mass Transfer in Convective Drying in Compact Wood Kilns: A System Approach

Vaz

Zdanski

Cerqueira

et al. 2013

Advances in Mechanical Engineering

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show abstract

“…In some cases the simultaneous 35 heat and mass transport of the moisture may even couple with the 36 mechanical behavior of the material to be dried, which will affect the 37 quality of the drying products [6][7][8]. Therefore, a well-designed system 38 and the proper operating conditions are essential for attaining high 39 quality drying [9][10][11][12][13].…”

mentioning

confidence: 99%

Experimental study and analysis of porous thin plate drying in a convection dryer

Sekone

Hung

Yeh

et al. 2015

International Communications in Heat and Mass Transfer

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A numerical model for chemo-thermo-mechanical coupling at large strains with an application to thermoresponsive hydrogels

Brunner,

Seidlhofer,

Ulz

2024

Comput Mech

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The aim of this work is the derivation and examination of a material model, accounting for large elastic deformations, coupled with species diffusion and thermal effects. This chemo-thermo-mechanical material model shows three key aspects regarding its numerical formulation. Firstly, a multiplicative split of the deformation gradient into a mechanical, a swelling and a thermal part. Secondly, temperature-scaled gradients for a numerical design comprising symmetric tangents and, thirdly, dissipation potentials for the modelling of dissipative effects. Additionally, the derived general material model is specialised to thermoresponsive hydrogels to study its predictive capabilities for a relevant example material class. An appropriate finite element formulation is established and its implementation discussed. Numerical examples are investigated, including phase transition and stability phenomena, to verify the ability of the derived chemo-thermo-mechanical material model to predict relevant physical effects properly. We compare our results to established models in the literature and discuss emerging deviations.

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Numerical and experimental validation of thermo-hygro-mechanical behaviour of wood during drying process

Cited by 15 publications

References 14 publications

Conjugated Heat and Mass Transfer in Convective Drying in Compact Wood Kilns: A System Approach

Conjugated Heat and Mass Transfer in Convective Drying in Compact Wood Kilns: A System Approach

Experimental study and analysis of porous thin plate drying in a convection dryer

A numerical model for chemo-thermo-mechanical coupling at large strains with an application to thermoresponsive hydrogels

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