Study of Thin Layer Drying Model for Cassava Pulp

摘要

This thesis article was purposes to study on the thin layer drying of cassava pulp using the Model BINDER Incubator BD 53 dryer. In experimental the cassava pulp sample with initial moisture content at 80 % w.b. was drying at temperature 50, 60 and 70 °C and collected mass of cassava pulp at interval 20 minute until mass not change. The experimental data was analyzed to evaluate the thin layer drying models and guideline for developed a new empirical drying equation to be suitable for predicting the moisture ratio of cassava pulp. From experimental, the moisture ratio was decreased with increased drying time and drying time was decreased with increased drying temperature. The results analysis of thin layer drying models, the Midilli model was good agreement predicted with experimental data. It had coefficient of determination (R2) and root mean square error (RMSE) better than another model. The newly developed equation had high accuracy with experimental data and had correlation values R~2 = 0.9938 and RMSE = 0.0264 for drying at temperature 50 °C - 70 °C.