Study / Bibliographical study and modelling of phenomena associated with drying in an industrial convective dryer

This study presents a general modelling of drying phenomena to cover a wide range of convective hot air dryers and products, in very different configurations.

The aim of this modelling work is to make the energy optimisation solutions proposed for convective dryers more reliable in the context of audits: for example, to analyse the impact of air recycling in the dryer on the drying quality of the manufactured product.

This modelling has two components:

1. Modelling of the product behaviour during dryin.
2. Modelling of the dryer and the air movements around the product.

The study identified and generalized a large number of existing models to take into account a wide product typology, including clay, wood, grains, fruits, vegetables, etc.

Executive summary