Through‐circulation drying of vegetable materials. V.—Barley grain

Abstract

AbstractThe drying characteristics of barley grain have been investigated, for both shallow and deep beds (Ld 2–10 lb. B.D.S./sq. ft.), under different conditions of dry‐bulb temperature, rate of air mass flow, wet‐bulb depression and of agitation.The rate of drying of shallow layers of grain has been shown to depend largely on the dry‐bulb temperature, mass air‐flow having a less marked effect and wet‐bulb depression almost no effect. In drying deep beds, mass air‐flow has a much greater influence on the drying rate.Drying times between moisture content limits of 0.7 and 0.1 have been used for correlation purposes and a method for the prediction of drying times of deep beds of grain is presented.Static pressure drops across beds of wet and dry material have also been studied.