Modelling of Drying Curves of Spruce, Beech, Willow and Alder Particles

Górnicki, Krzysztof; Kaleta, Agnieszka; Bryś, Andrzej; Winiczenko, Radosław

doi:10.5552/drind.2017.1602

Cited by 2 publications

(2 citation statements)

References 13 publications

(12 reference statements)

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“…Some authors have described the effect of drying variables on the parameters of empirical models, in these cases such models may be considered to be more general. In the literature, the predicted parameter values were correlated as a function of drying air temperature (Alara et al, 2017;Kaleta et al, 2013;Mghazli et al, 2017), drying air temperature and airflow velocity (Hosseinabadi et al, 2012), characteristic particle dimension and initial material load (Kaleta et al, 2013), airflow velocity, drying air temperature, characteristic particle dimension and the initial height of the layer (Kaleta and Górnicki, 2010a), wood species and drying air temperature (Górnicki et al, 2017). No information was obtained concerning the examination of the effect of the vegetables species on the parameters of the drying models.…”

Section: Introductionmentioning

confidence: 99%

“…As mentioned previously, some authors have described the effect of drying variables on the parameters of the empirical models in order to make these models more widely applicable. The effect of the type of the material being dried was only determined for wood (Górnicki et al, 2017). Therefore, the authors investigated the effect of conditions of conducting drying process (air drying temperature, slice thickness) and also the effect of differences in the biological and mechanical structure of vegetables.…”

Section: Introductionmentioning

confidence: 99%

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Suitable model for thin-layer drying of root vegetables and onion

Górnicki¹,

Kaleta²,

Choińska³

2020

Int. Agrophys.

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The drying behaviour of carrot, parsley, red beetroot and onion slices of 5 and 10 mm thickness was investigated in a convective dryer at a drying temperature of 50, 60 and 70°C under natural convection conditions. The experimental drying data of the vegetables slices obtained were fitted to five empirical thin-layer models: Lewis (Newton), Henderson and Pabis, Page, Modified Page, Wang and Singh. The effects of the vegetable species, air drying temperature, and slice thickness on the model parameters were determined. Four statistical tools, namely, the determination coefficient, root mean square error, reduced chi-square, and t-statistic method were applied to determine the fittings. The Page model with the model parameters determined by a summation equation, a square type dependence for the drying air temperature and a rational one for the slice thickness is recommended as the most suitable model (R 2 = 0.9699, RMSE = 0.0587, χ 2 = 0.0035, t-stat = 0.6739). K e y w o r d s: root vegetables, onion, drying kinetics, modelling, drying models

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Suitable model for thin-layer drying of root vegetables and onion

Górnicki¹,

Kaleta²,

Choińska³

2020

Int. Agrophys.

Self Cite

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Mathematical model of the energy consumption calculation during the pine sawn wood (Pinus sylvestris L.) drying process

et al. 2021

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The article presents a modification of the existing mathematical model to calculate energy consumption during conventional drying process. Apart from energy consumption, the model permits to estimate the time of high-temperature drying process. The drying medium is air and superheated steam mixture. The obtained calculation results were compared with conducted experimental tests of drying square-edged sawn sapwood timber (Pinus sylvestris L.). The pine sawn wood samples were dried according to three different drying modes, namely mild, normal and intense. The experiments were performed in a semi-industrial scale drying chamber. On the basis of the experimental research available, existing mathematical models of drying wood have been improved. The developed model included the following changes: a different drying time for each mode and type of drying medium (moisturized air or air and superheated steam mixture). The use of an intensive drying mode significantly reduced the drying process time. The developed mathematical model revealed that the energy consumption of the drying process increases with the intensity of the mode used.

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Modelling of Drying Curves of Spruce, Beech, Willow and Alder Particles

Abstract: • Drying behaviour of spruce (Picea abies (L.) H. Karst.), beech (Fagus sylvatica L.), willow (Salix alba L.), and alder (Alnus glutinosa (L.) Gaertn.) particles was investigated in a convective

Cited by 2 publications

References 13 publications

Suitable model for thin-layer drying of root vegetables and onion

Suitable model for thin-layer drying of root vegetables and onion

Mathematical model of the energy consumption calculation during the pine sawn wood (Pinus sylvestris L.) drying process

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