Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Model of Moisture Transport in Wood, Taking Into Account Diffusion and the Accompanying Adsorption of Water Vapour Through the Skeleton

Version 1 : Received: 17 November 2020 / Approved: 19 November 2020 / Online: 19 November 2020 (10:34:08 CET)

How to cite: Kucharczyk, A.; Pawlik, K. Model of Moisture Transport in Wood, Taking Into Account Diffusion and the Accompanying Adsorption of Water Vapour Through the Skeleton. Preprints 2020, 2020110500 (doi: 10.20944/preprints202011.0500.v1). Kucharczyk, A.; Pawlik, K. Model of Moisture Transport in Wood, Taking Into Account Diffusion and the Accompanying Adsorption of Water Vapour Through the Skeleton. Preprints 2020, 2020110500 (doi: 10.20944/preprints202011.0500.v1).

Abstract

The paper presents a model of moisture transport in wood taking into account diffusion and the accompanying adsorption of water vapour through the skeleton. A two-parameter form of the source term was proposed, depending on the distance of the current mass concentration of bound water from the equilibrium state. The tests on cubic samples with a side of 2 cm were carried out which allowed to determine the coefficients of the proposed model on the basis of the reverse method. The tests were performed for pine, larch, oak and ash in all directions of orthotropy. Also the tests on thin samples were performed to verify the source term.

Subject Areas

water vapour; bound water; diffusion; adsorption; wood; sorption experiment

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