Mathematical modelling of thin layer drying process under open sun of some aromatic plants

Open sun drying experiments in thin layers of crain-crain (CC), fever (FV) and bitter (BT) leaves grown in Abeokuta, Nigeria were conducted. The drying process took place in the falling rate period and no constant rate period was observed from the drying curves. Eight thin layer mathematical drying models were compared using the multiple determination coefficients (R2), reduced chi-square (χ2) and root mean square error (RMSE) between the observed and predicted moisture ratios. Accordingly, Midilli et al. model satisfactorily described the drying curves of the three leaves with R2 of 0.9980, χ2 of 2.0×10-4 and RMSE of 1.09×10-2 for CC leaves; R2 of 0.9999, χ2 of 2×10-6 and RMSE of 1.11×10-3 for FV leaves; and R2 of 0.9998, χ2 of 1.9×10-5 and RMSE of 3.3×10-3 for BT leaves. The effective diffusivity was found to be 52.91×10-10, 48.72×10-10 and 43.42×10-10 m2/s for CC, BT and FV leaves, respectively.

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Mathematical Modelling of the Thin Layer Drying of Tender Palm Shoots (Borassus flabellifer L.)

International Journal of Food and Fermentation Technology ◽

10.5958/2277-9396.2016.00004.0 ◽

2015 ◽

Vol 5 (2) ◽

pp. 237

Author(s):

M. Naveen Kumar ◽

L. Edukondalu ◽

Ch. Sai Supraja ◽

B. Jyothi ◽

J. Maheendra Reddy

Keyword(s):

Mathematical Modelling ◽

Thin Layer ◽

Thin Layer Drying

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Mathematical modelling of the thin-layer drying kinetics of some fruits

Journal on Processing and Energy in Agriculture ◽

10.5937/jpea1801001m ◽

2018 ◽

Vol 22 (2) ◽

pp. 1-4

Author(s):

Vangelce Mitrevski ◽

Cvetanka Mitrevska ◽

Mirko Babić ◽

Tale Geramitcioski ◽

Vladimir Mijakovski

Keyword(s):

Mathematical Modelling ◽

Thin Layer ◽

Drying Kinetics ◽

Thin Layer Drying ◽

Kinetics Of

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Drying Process Modelling for Heavy Clay Products Using a New Thin Layer Drying Model

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.371.323 ◽

2013 ◽

Vol 371 ◽

pp. 323-327

Author(s):

Miloš Vasić ◽

Zagorka Radojević

Keyword(s):

Thin Layer ◽

Mathematical Models ◽

Process Modelling ◽

Experimental Investigations ◽

Drying Process ◽

Thin Layer Drying ◽

Heavy Clay ◽

Drying Models ◽

Drying Model ◽

Thin Layer Drying Models

Drying results, determined on samples made of masonry clay from the locality "Banatski Karlovac", are presented in this study. Experimental investigations were carried out in a laboratory recirculation dryer in which drying parameters (humidity, temperature, and velocity) could be programmed, controlled and monitored during drying process. Several mathematical models were used for drying process modelling. New semi-theoretical thin layer drying model, for heavy clay products, was developed and presented in this study. It represents a modification of Page's and logarithm's thin layer drying models. Results presented in this study have shown that new thin layer drying model describes and correlates the best experimentally determined drying process.

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