Inner heat source and heat transfer in wine fermentation
Wine fermentation has a large amount of heat release in the fermentation course.One of the most important measures is to control the temperature effectively to get high quality wine.In this study,an experimental study of the heat characteristics in wine fermentation was made.Firstly,wild fermentation without temperature control was observed,and the heat release of wine fermentation was investigated.This heat release was defined as the inner heat source of wine fermentation.Then,the experiment with temperature control was made.With the consideration of the inner heat source investigated formerly,the unsteady heat transfer was analyzed,and the expression of temperature distributions for wine fermentation!was obtained.The results from computer calculation agreed with the experimental results.