Ultrasonic Impact on the Drying Process of Wood Biomass

Głowacki, Szymon; Tulej, Weronika; Sojak, M.; Bryś, Andrzej; Jaros, M.; Szulc, Daniel

doi:10.1007/978-3-030-13888-2_9

Cited by 1 publication

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“…Wood, energy crops, and agricultural and forest residues that belong to the most common resources of renewable energy can be classified as biomass [2,3]. The first type of biomass used by human beings was wood [4]. It has been utilized in the process of direct combustion, which people still rely on all over the world [1].…”

Section: Introductionmentioning

confidence: 99%

Some Aspects of the Modelling of Thin-Layer Drying of Sawdust

et al. 2021

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Drying of spruce, beech, willow, and alder sawdust was examined in a laboratory type dryer. The effect of drying air temperature T (25, 60, and 80 °C) and airflow velocity v (0.01, 0.15, and 1.5 m/s) was investigated. The obtained results demonstrated that drying air temperature and airflow velocity have impacts on the drying of sawdust. The experimental dehydration data of sawdust obtained were fitted to theoretical, semi-theoretical, and empirical thin-layer models. The accuracies of the models were estimated using the correlation coefficient (R), root mean square error (RMSE), and reduced chi-square (χ2). All models except the theoretical model of a sphere described the drying characteristics of sawdust satisfactorily. The effect of T and v on the parameters (constants and coefficients) of the drying models were determined. The effect, by the proposed equations, was also described. This work combines aspects of mechanical engineering and modelling of the drying process.

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