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Some remarks on evaluation of drying models of red beet particles

Some remarks on evaluation of drying models of red beet particles,10.1016/j.enconman.2010.06.040,Energy Conversion and Management,Agnieszka Kaleta,Krz

Some remarks on evaluation of drying models of red beet particles   (Citations: 2)
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Drying behaviour of red beet particles was investigated in a laboratory type dryer, at constant air velocity 1m/s and at constant temperature 60°C. The effect of initial material load, particle shape and size on the dehydration characteristics of red beet was investigated. The drying experiments were conducted at three levels of initial material load of 5.33, 10.67 and 16kg/m2. The following particle shapes were investigated: slices, cubes, and prisms. Red beet roots were cut into 3, 6 and 9mm slice thickness, 6, 9 and 12mm cube thickness, and 3, 6 and 9mm prisms thickness. Length of square based prisms equalled 50mm. The results have shown that, the initial material load, particle shape and size influence on the drying behaviour of red beet particles. The experimental dehydration data of red beet particles obtained were fitted to the semi-theoretical, empirical and theoretical models. The accuracies of the models were measured using the correlation coefficient (R), mean bias error (MBE), root mean square error (RMSE), reduced chi-square (χ2), and t-statistic method. All models except that used by Wang and Singh described the drying characteristics of red beet particles satisfactorily. The effect of the characteristic dimension of the particle and initial material load on the drying models parameters were also determined.
Journal: Energy Conversion and Management - ENERG CONV MANAGE , vol. 51, no. 12, pp. 2967-2978, 2010
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