Determination of Effective Diffusion Coefficient and Activation Energy of Banana during Drying Process

摘要：

In this study, first, drying kinetics of banana was modelled and then effective diffusion coefficient and activation energy were determined.For this purpose, the experiments were done at four air temperature levels of (60, 70, 80, 90℃), two air velocity levels of (0.5 and 1 m/s), and two thickness levels of (3 and 5 mm).In drying kinetics modelling, the Midilli et al model due to its R2 (coefficient of determination), RMSE (root mean square error) and SSE (sum square error) factors had the best accordance with the experimental data.Increasing of air temperature was found to increase effective diffusion coefficient.Effective diffusion coefficient increased from 0.357E-07 to 1.305E-07 m2.s-1 and activation energy changed from 34.65 kj.mol-1 to 44.77 kj.mol-1 according to the different conditions tested.

关键词： Mathematical Modelling Effective Diffusion Coefficient Activation Energy

作者: M.A.Ebrahimi S.S.Mohtasebi Sh.Rafiee S.Hoseinpoor M.Khanali

作者单位: Agricultural Machinery Engineering,University of Tehran, Islamic Republic of Iran Mechanics Engineering ,University of Tehran, Islamic Republic of Iran Department of Bio-system Engineering, University College of Agriculture and Natural Resources, Unive

会议类型: 国际会议

会议名称: The 7th Asia-Pacific Drying Conference(第七届亚太地区干燥会议 ADC2011)

会议地点: 天津

会议语种:英文

页码: 1-5

在线出版日期: 2011-09-18（万方平台首次上网日期，不代表论文的发表时间）