TY - JOUR
T1 - Indirect Solar Drying Kinetics of Sheanut (Vitellaria paradoxa Gaertn)
Kernels
AU - Bup, Divine Nde AU - , Charles Fon Abi AU - , Dzudie Tenin AU - , Cesar Kapseu AU - , Clerge Tchiegang AU - , Zephirin Mouloungui
JO - Journal of Engineering and Applied Sciences
VL - 8
IS - 6
SP - 183
EP - 191
PY - 2013
DA - 2001/08/19
SN - 1816-949x
DO - jeasci.2013.183.191
UR - https://makhillpublications.co/view-article.php?doi=jeasci.2013.183.191
KW - Indirect solar drying
KW -modelling
KW - shrinkage
KW -modelling
KW - shrinkage
KW -temperature
AB - An indirect solar dryer was tested for drying sheanut kernels.
The influence of tray distance from heat source, airspeed and particle size
on drying kinetics was investigated. Optimum drying air parameters obtained
in the dryer were airspeeds of 1 and 1.4 m sec-1 and a temperature
of 40-45°C. Sheanut kernel slices dried entirely in the falling rate period.
Drying rate decreased with increase in particle size. The effect of particle
size on the drying rate suggested that the drying process was controlled by
internal mass transfer. Drying kinetics was modeled with characteristic drying
curve and diffusive models. Effective moisture diffusivities of sheanut kernel
slices calculated without shrinkage were greater than those calculated with
the incorporation of shrinkage by a value of about 50%. Acid and peroxide values
indicated that butter from the dryer could be classified either as category
1 or 2 irrespective of the drying conditions to which the kernels were subjected.
ER -