Analysis of bale temperatures using a finite difference heat transfer model indicated that sensible heat generation rate in rectangularly baled alfalfa hay was positively correlated with moisture and density. The rate increased during the first several days of storage and decreased thereafter. An empirical model of heat generation rate was developed from the experimental data. The model was integrated over a 6 month storage period to obtain an equation which predicts sensible heat generation as an exponential function of the initial moisture content and density of hay. An energy balance applied to a hay stack resulted in a theoretical model where dry matter loss is a function of sensible heat generated and moisture lost during storage.
|Original language||English (US)|
|Number of pages||7|
|Journal||Transactions of the American Society of Agricultural Engineers|
|State||Published - Jan 1 1989|
All Science Journal Classification (ASJC) codes
- Agricultural and Biological Sciences (miscellaneous)