TITLE:
Experimental Study of Drying Process of COLZA Seeds in Fluidized Bed Dryer by Statistical Methods
AUTHORS:
Jamshid. Khorshidi, Hassan. Davari
KEYWORDS:
Fluidized Bed; Drying Process; Colza Seeds; Heat Transfer; Regression Model
JOURNAL NAME:
Advances in Chemical Engineering and Science,
Vol.2 No.1,
December
31,
2011
ABSTRACT: In this study the effect of initial parameters such as inlet gas temperature, initial particles temperature and gas velocity on temperature changes of solid particles and outlet gas temperature in a fluidized bed dryer was studied. For testing, an experimental setup was established. With combination of air and Colza seeds belonging to D groups of the Geldart classification (Geldart, 1986) fluidization regime was carried out. With five test series with maintaining the inlet gas temperature, solid particle temperature and outlet gas temperature during time were carefully measured. To analyze these data by using regression analysis to predict solid particle and outlet gas temperature, 2 correlations on initial pa-rameters were presented. The result has shown that temperature gradients in the beginning of fluidization, is very high and therefore the exponential functions in the regression model is used to predict the temperature changes.