A new experimental device to monitor mass and dimensions of samples during convective drying

Giana G. Almeida Perré (1, 2) , Julia Parlatore Lancha (1, 2) , Floran Pierre (3) , Joel Casalinho (3) , Patrick Perre (4)

1 INRA - Institut National de la Recherche Agronomique
2 AgroParisTech
3 LGPM - Laboratoire de Génie des Procédés et Matériaux - EA 4038
4 LERFoB - Laboratoire d'Etudes des Ressources Forêt-Bois

This article presents the results obtained from an experimental device designed for the accurate determination of hygroscopic and dimensional properties during convective drying. During drying, the mass and dimensions of the sample are continuously measured with a suspension magnetic balance and a digital camera, respectively. Experiments were carried out on cylindrical samples of potatoes. Three drying kinetics were tests. Potato samples showed values of isotropicity always around 1.2, meaning that shrinkage was slightly more important in the longitudinal direction.

Mots clés: continuous measurement; physical properties; potato; convective drying; magnetic suspension balance; image analysis

Domaines: Sciences de l'ingénieur [physics]

Giana G. Almeida Perré, Julia Parlatore Lancha, Floran Pierre, Joel Casalinho, Patrick Perre. A new experimental device to monitor mass and dimensions of samples during convective drying. EuroDrying'2015, Oct 2015, Budapest, Hungary. ⟨hal-01804878⟩