REDUCTION OF MOISTURE IN THE TIMBER ELEMENTS BY MICROWAVE RADIATION
DOI:
https://doi.org/10.51704/cjce.2016.vol2.iss2.pp145-150Keywords:
Microwave radiation, microwave drying, moisture transport, humidity, temperature fieldAbstract
Building construction drying using high-frequency electromagnetic radiation (EMW), or microwave technology (MW), is gaining more usage in practise. It is the quickest way of eliminating water content in construction (wall, ceiling, etc.). Microwave is a term for a part of the electromagnetic radiation of 300 MHz to 300 GHz frequency with a wavelength from 1 mm to 1 m. The frequency of 2,45 GHz and 122 mm wavelength is used for technical practice. Due to the effect of MW radiation a different homogeneity of temperature field can be observed. This article deals with physical factors changes depending on the water content as well as on mass humidity of the material (timber). Another factor is the spreading of the temperature field, which is monitored with thermal imaging FLIR i7. Measurement was carried out after a certain time cycles of irradiation.
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SOBOTKA, J., FYZIKÁLNÍ HODNOTY PŘI TECHNOLOGII VYSOUŠENÍ ZDĚNÝCH STAVEB, příspěvek na konferenci Juniorstav 2015, ISBN 978-80-214-5091-2, Vysoké učení technické v Brně, Fakulta stavební, Veveří 331/95, 602 00 Brno, Brno, 2015.
ŠUHAJDA, K.; NOVOTNÝ, M.; ŠKRAMLIK, J.; TICHOMIROV, V., Sterilization of biotic pests by microwave radiation, článek v Procedia Engineering, ISSN 1877-7058, Vilnius Gediminas Tech Univ, Fac Civil Engn, Vilnius, LITHUANIA, 2013.
NOVOTNÝ, M.; ŠUHAJDA, K.; SOBOTKA, J.; GINTAR, J., USE OF EMW RADIATION IN THE BUILDING INDUSTRY, článek v Advanced Materials Research, ISSN 1022-6680, Scientific.NET, Advanced Materials Research, Switzerland, 2014.
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Copyright (c) 2023 Martin Procházka, Jindřich Sobotka
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