Intensification of beech wood drying process using microwaves

• Autorzy: Rajewska Kinga , Smoczkiewicz-Wojciechowska Anna , Majka Jerzy

Identyfikatory

DOI

10.24425/cpe.2019.126110

• Języki publikacji: EN

Abstrakty

EN

This paper analyses the influence of the applied microwave power output on the intensification of drying in the context of process kinetics and product quality. The study involved testing samples of beech wood (Fagus sylvatica L.). Wood samples were dried in the microwave chamber at: 168 W, 210 W, 273 W, 336 W and 378 W power output level. For comparison, wood was dried convectively at 40 ◦C and 87% air relative humidity. The analysis of drying process kinetics involved nonlinear regression employing the Gompertz model. Dried samples were subjected to static bending tests in order to specify the influence of the applied microwave power on modulus of elasticity (MOE) and modulus of rapture (MOR). The obtained correlations of results were verified statistically. Analysis of drying kinetics, strength test results and Tukey’s test showed that the applied microwaves of a relatively low level significantly shortened the drying time, but did not cause a reduction in the final quality of dried wood, compared with conventional drying.

Słowa kluczowe

EN

beech wood; microwave drying; strength tests; nonlinear regression

PL

drewno bukowe; suszenie mikrofalowe; testy wytrzymałościowe; regresja nieliniowa

• Wydawca: Komitet Inżynierii Chemicznej i Procesowej Polskiej Akademii Nauk
• Czasopismo: Chemical and Process Engineering
• Rocznik: 2019
• Tom: Vol. 40, nr 2
• Strony: 179–--187
• Opis fizyczny: Bibliogr. 21 poz., rys., tab., wykr.

Twórcy

autor

Rajewska Kinga

• Poznań University of Technology, Faculty of Chemical Technology, ul. Berdychowo 4,60-965 Poznań, Poland

autor

Smoczkiewicz-Wojciechowska Anna

• Poznań University of Life Sciences, Faculty of Land Reclamation and Environmental Engineering, ul. Piątkowska 94e, 60-649 Poznań, Poland

autor

Majka Jerzy

• Poznań University of Life Sciences, Faculty of Wood Technology, ul. Wojska Polskiego 38/42,61-627 Poznań, Poland

Bibliografia

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Uwagi

PL

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2019).