Journal of the Faculty of Fisheries and Animal Husbandry, Hiroshima University Volume 15 Issue 1
1976-07-20 発行

Studies of Drying-rate Equations based on Drying-shell Models

Kubota, Kiyoshi
Suzuki, Kanichi
Hosaka, Hideaki
Hirota, Reiko
Ihara, Kiyoshi
In order to design and automatically control various drying apparatuses, it is required to determine the drying-rate equations and to obtain the rate parameters for the equations. In this study, we postulated the integrated equations of the drying-rate equations based on the drying-shell models which considered the surface-shrinkage for the sphere, the long-cylinder and the infinite-slab, respectively. Then, we reported on the calculation methods of the rate parameters using a non-linear least square method.

The drying-rate equations in this paper are characterized by the convenience when the constant- and falling-rate periods are not dearly observed and the shrinkage of the surface becomes evident, and are used commonly in drying of foods.