Author(s)

C. I. Nwoye

Department of Materials and Metallurgical, Engineering Federal University of Technology,Owerri, Nigeria..

Model for predicting the quantity of water evaporated during drying of clay at a temperature range 80-110℃ has been derived. The model; E=exp[0.3424(LogT)^2.3529] indicates that the quantity of evaporated water during the drying process is dependent on the drying temperature, the evaporating surface being constant. The validity of the model is rooted in the expression (lnE x Log β)^N = Log T since both sides of the expression are correspondingly approximately equal to 2. The respective deviation of the model-predicted quantity of evaporated water from the corresponding experimental value is less than 20% which is quite within the acceptable deviation range of experimental results, hence depicting the usefulness of the model. Water evaporation per unit rise in the drying temperature evaluated from experimental and model-predicted results are 0.078 and 0.0502g/℃ respectively, indicating proximate agreement.

Model, Water Evaporation, Drying, Clay.

C. Nwoye, "Model for Predicting the Quantity of Water Evaporated during Initial Stage Drying of Wet Clay Designated for Production of Bricks," Journal of Minerals and Materials Characterization and Engineering, Vol. 8 No. 8, 2009, pp. 647-658. doi: 10.4236/jmmce.2009.88056.