Evaluation and Selection of Thin-layer  Drying Models for Paddy Dried in  Static Flat-bed Batch Dryer

Lubna Sadaf Anchal; Abhinav Dubey; Prassana Kumar

doi:10.9734/cjast/2020/v39i530546

Research Article Open access CC BY 4.0

Evaluation and Selection of Thin-layer Drying Models for Paddy Dried in Static Flat-bed Batch Dryer

Lubna Sadaf Anchal, Abhinav Dubey, Prassana Kumar

Current Journal of Applied Science and Technology · pp. 55–65 · Published 8 Apr 2020

10.9734/cjast/2020/v39i530546

Abstract

A Static flat-bed batch dryer was developed for drying paddy from harvesting moisture content (20 – 22%) to 12% for safe storage. The dryer mainly consisted of Blower, Heating chamber, Plenum chamber and drying chamber. Twenty kg paddy was dried in the developed dryer at two different inlet air flow rate (1 m3/min. and 1.26 m3/min). The machine has a capacity of 20 kg and temperature of drying air was 60 and 55°C respectively. The moisture content was recorded at every 15 minutes interval and moisture ratio plots were generated. The experimental data were fit in 8 different thin-layer drying models and statistical parameters along with the model constants were obtained. It was found that the Wang and Singh model with the highest values for R2 and the least values of RMSE in selected drying conditions has the best fit. Henderson & Pabis and Newton models were also found suitable for describing the drying kinetics of paddy in the developed dryer.

Static flat-bed batch dryer thin layer drying curve fitting mathematical modelling

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Lubna Sadaf Anchal, Abhinav Dubey, Prassana Kumar (2020). Evaluation and Selection of Thin-layer Drying Models for Paddy Dried in Static Flat-bed Batch Dryer. Current Journal of Applied Science and Technology , 55–65. https://doi.org/10.9734/cjast/2020/v39i530546

Affiliations

Lubna Sadaf Anchal — College of Agricultural Engineering, University of Agricultural Sciences-GKVK, Bengaluru, India.
Abhinav Dubey — College of Agricultural Engineering, University of Agricultural Sciences-GKVK, Bengaluru, India.
Prassana Kumar — College of Agricultural Engineering, University of Agricultural Sciences-GKVK, Bengaluru, India.

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