TG-DSC method applied to drying characteristics and heat requirement of cotton stalk during drying

Drying characteristics of cotton stalk were investigated at four temperatures (60, 80, 100 and 120 °C) using a simultaneous thermal analyzer (TG-DSC). Heat requirements of cotton stalk during drying were calculated ranging from 189 to 406 kJ/kg. Consequently, Midilli-Kucuk model showed the best fit to experimental drying data. The values of effective diffusivity ranged from 4.38 × 10−9 to 8.15 × 10−9 m2/s, and the activation energy was calculated to be 11.6 kJ/mol.

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