AMA-AGRICULTURAL MECHANIZATION IN ASIA AFRICA AND LATIN AMERICA, cilt.46, sa.2, ss.53-60, 2015 (SCI-Expanded)
By adopting the central-composite experiment design, the response surface methodology was used to optimize operating conditions of potato drying in the industrial prototype shelf dryer. The independent variables are thickness of potato slices (3.64, 5.0, 7.0, 9.0, and 10.36 mm), air temperature (43.18, 50, 60, 70 and 76.8 degrees C) and air velocity (1.05, 1.6, 2.4, 3.2 and 3.74 m/s). The investigating responses are drying time, drying ratio and energy consumption. The analysis of variance (ANOVA) was performed to identify the significant parameters affecting the potato drying. Drying temperature of sliced potatoes is the most influential operating parameters that significantly control the drying time and ratio. Slice thickness is the most influential parameter that significantly controls energy consumption of potato.