Stochastic Modelling of Grain Drying: Part 2. Model Development

Abstract In Part 1 of this series of three papers, it was shown that the moisture content in maize reaching a dryer is approximatelynormallydistributed. In Part 2, stochastic drying models are developed for grain with an initial normal distribution in moisture content. It is shown that the moisture content is still normally distributed after one-dimensional drying (i.e. concurrent- or counter-flow drying), but is skewed after two-dimensional drying (i.e. crossflow drying). The models predict, for dried grain, both the average moisture content and its standard deviation to an acceptable accuracy.