Drying of toria (Brassica campestris var. toria). II. Drying conditions.

The deep bed drying characteristics of toria (Brassica campistris var.
toria) seeds were studied by considering the deep bed as a series of thin
layers. The effect of various operating variables (drying air velocity
temperature and initial moisture content of seeds) on the moisture ratio
was assessed. The air velocity was measured in terms of m s-’ (m of bed
height)- ’ to account for any variation in bed height. All the experimental
data from 27 runs were fitted to a single equation by multiple regression
analysis. The deep bed model permits the calculation of drying time for
any final moisture ratio, or the calculation of the moisture ratio after a
given drying time.