A granular insoluble solid material wet with water is being dried in the constant$-$rate period in a pan and the depth of material is $.$ The sides and bottom are insulated. Air flows parallel to the top drying surface at a velocity of and has a dry bulb temperature of and wet bulb temperature of $.$ The pan contains of dry solid having a free moisture content of dry solid, and the material is to be dried in the constant$-$rate period to dry solid. After the drying process this product is to be frozen in an air blast freezer at $.$ Freezing temperature is solid material is $.$ Until solid material reaches freezing temperature the freezer must be worked for for decreasing. The heat transfer coefficient is $.$ Density of unfrozen solid is and thermal conductivity values of frozen solid is $1\mathrm{.}122.$ Predict the drying rate and the time in hours needed for the total process.