期刊
RENEWABLE ENERGY
卷 150, 期 -, 页码 918-923出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.renene.2020.01.040
关键词
Activation energy; Banana slices; Effective moisture diffusivity; Heat pump drying system; Mathematical modelling
In this study, banana slices were dried at different temperatures in a closed-loop heat pump drying system. As the temperature and the slice thickness increased, the drying time also increased. Midilli & Kucuk model was found to be the best model to explain the experimental data. The effective moisture diffusivity ranged from 1.12 x 10(-10) to 1.64 x 10(-10) m(2)/s. The dependence of moisture diffusivity on temperature was described by an Arrhenius-type equation and the activation energy was found to be -51.45 kJ/mol. The highest mean specific moisture extraction ratio (SMER) and coefficient of performance (COP) of HPD system were obtained as 0.212 kg/kWh and 3.059, respectively, at the highest drying air temperature. (C) 2020 Elsevier Ltd. All rights reserved.
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