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Theoretical Determination of Pit Membrane Natural Frequency for Destruction by Resonance Effect

Terziev, Nasko and Daniel, Geoffrey and Torgovnikov, Grigori (2021). Theoretical Determination of Pit Membrane Natural Frequency for Destruction by Resonance Effect. Bioresources. 16 , 2683-2695
[Research article]

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Abstract

The low permeability of many wood species causes significant problems during processing. Industrial methods used for increasing wood permeability reduce strength properties, are energy consuming, and are not viable economically. Destruction of pit membranes in wood cell walls can provide an increase in wood permeability without affecting wood strength properties. It can be accomplished using resonance applied to the pit membranes. Theoretical analysis and calculations have been performed to determine pit membrane (torus and margo) natural frequency. Membrane natural frequencies of bordered pits of Norway spruce are in the range of 3 to 11 MHz. Water in the pit chamber did not have a significant effect on the resonant frequency of the membrane. The main limitation of the amplitude of membrane fluctuations inside the pit chamber was the width of the chamber. Two methods to initiate resonance frequency for pit membrane destruction have been suggested, namely, alternating electric field application and microwave energy pulsation.

Authors/Creators:Terziev, Nasko and Daniel, Geoffrey and Torgovnikov, Grigori
Title:Theoretical Determination of Pit Membrane Natural Frequency for Destruction by Resonance Effect
Series Name/Journal:Bioresources
Year of publishing :2021
Volume:16
Page range:2683-2695
Number of Pages:13
ISSN:1930-2126
Language:English
Publication Type:Research article
Article category:Scientific peer reviewed
Version:Published version
Full Text Status:Public
Subjects:(A) Swedish standard research categories 2011 > 2 Engineering and Technology > 205 Materials Engineering > Paper, Pulp and Fiber Technology
Keywords:Bordered pits, Margo, Microwave treatment, Resonance frequency, Torus, Wood permeability
URN:NBN:urn:nbn:se:slu:epsilon-p-110859
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-p-110859
Additional ID:
Type of IDID
DOI10.15376/biores.16.2.2683-2695
Web of Science (WoS)000647795200036
ID Code:23999
Faculty:S - Faculty of Forest Sciences
Department:(S) > Department of Forest Biomaterials and Technology
Deposited By: SLUpub Connector
Deposited On:28 May 2021 14:23
Metadata Last Modified:28 May 2021 14:31

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