Abstract
ABSTRACT LOW-TEMPERATURE, in-bin wheat drying has been studied through use of computer simulation and on-farm drying experiments involving in-bin drying with unheated and solar heated air. The simulation used is based on mathematical models which define moisture and heat transfers. A GASP IV computer program simu-lates drying of a bin of grain by thin-layers in discrete time steps by simultaneous solution of a set of four non-linear equations. Experimentally obtained drying data were used to validate the simulations. The simulations predicted moisture contents for most observations within 1 percent for the solar heated drying case and within 2 percent for the natural air drying case. Analyses indicate that slight variations in airflow and air moisture content appreciably affect drying.
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