Journal or Book Title
Transactions of the ASAE
Two years of field tests and computer simulation with 20 years of Des Moines, lA, weather data were used to compare performance of stirred and unstirred natural-air corn dryers. For bins with the same size fan, stirring reduced drying time, electric-energy use, and overdrying. Stirring also allowed successful drying with reduced fan power and airflow. Adding stirrers to 5.5-m diameter bins was cost effective for drying 24% moisture corn and for 20% moisture corn when electricity prices were greater than about $0.08/kWh. Cost effectiveness of adding stirrers to natural-air dryers improved as corn and electricity prices, and initial corn moisture increased.
American Society of Agricultural and Biological Engineers
Wilcke, Walter F. and Bern, Carl J., "Natural-Air Corn Drying with Stirring: II. Dryer Performance" (1986). Agricultural and Biosystems Engineering Publications. 465.