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Description: The practice of drying hay and grain with unheated or tempered air in Western Canada is limited. The reluctance to use a system that provides low cost drying is due to a number of reasons, not the least of which is the opinion that the climate of Western Canada is not suitable. Difficulties, especially if the season is late, cannot be overlooked. On the other hand Moysey and Wilde (1) concluded for the Saskatoon area that nearly two batches of wheat at 18% moisture content could have been dried to 14% during September, 1959 with as little as 3 cfm of unheated air per bushel where 1959 was considered a poor harvest year. In addition, the opinion ignores the significant effect of tempering the air by adding small amounts of heat. One of the main difficulties experienced by the author in the promotion of drying with natural and tempered air was the inability to advise on the size of duct and fan system required which in turn is based on the quantity of air required. The common design figure is 3 cfm per bushel and which, as noted above, was used by Moysey and Wilde. The figure, however, must vary with the following independent variables

Keywords: air volume for drying grain
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Citation: Harmon, H. P. 1969. AIR VOLUME FOR DRYING GRAIN. Canadian Agricultural Engineering 11(2):58-61.
Volume: 11
Issue: 2
Pages 58 - 61
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Date: 1969
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Coverage: Canada
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