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Evaluation of three...
Evaluation of three semi-empirical models for superheated steam vacuum drying of timbers
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- Elustondo, Diego (författare)
- Department of Wood Science, University of British Columbia, Vancouver
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- Oliveira, Luiz C De S (författare)
- Forintek Canada Corporation, Western Laboratory, Vancouver, BC
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- Avramidis, Stavros H. (författare)
- University of British Columbia, Department of Wood Science
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(creator_code:org_t)
- 2003
- 2003
- Engelska.
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Ingår i: Drying Technology. - 0737-3937 .- 1532-2300. ; 21:5, s. 875-893
- Relaterad länk:
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https://urn.kb.se/re...
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visa fler...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Superheated steam drying at sub-atmospheric pressure (SSV) has been successfully employed in Europe and Asia for drying some types of timbers, showing that drying time could be reduced by 50% with respect to conventional drying without significant losses in the quality of the final product. This reduction is the consequence of a different heat and mass transfer control mechanism. Since SSV drying is carried out in absence of gaseous air, diffusion of the generated vapor is not a limiting factor and drying rate becomes more dependent on heat transference. Therefore, classical interpretation of timber drying as a process based on moisture migration control is not applicable to SSV. This work is targeting the development and validation of a simplified semi-empirical model for SSV drying of timbers. Mathematical representation of the proposed model is uncomplicated and straightforward to apply, and the comparison between model predicted and experimental data showed a high degree of agreement under variable drying conditions.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Industriell bioteknik -- Biomaterial (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Industrial Biotechnology -- Bio Materials (hsv//eng)
Nyckelord
- Träfysik
- Wood Physics
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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