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| Water evaporates faster the higher the air temperature and warmer air has more capacity to extract water. 150 and up tends to toast the corn. 130 dries a lot of corn without darkening it much. 95 produces the brightest golden corn, but it takes longer. I had a neighbor (after I'd wired the bin and dryer) set the thermostat for ten degrees above the afternoon high. It took a month to dry a 10,000 bushel bin (with stirrators), but only one 1000 gallon tank of LP. I don't know why his wife didn't shoot us from running that screaming axial fan that long. It was louder in my yard nearly half a mile away than the centrifugal blower out behind my back yard.
Long ago, ISU book store had a good book on crop drying 35 years ago. There probably are better ones today that discuss drying rates vs temperature, corn moisture, and air humidity for many crops. The tables in such a reference can allow one to optimize drying for lowest fuel costs and to know when air drying won't work.
Gerald J. | |
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In-bin drying temps?
