In this paper the kinetics of osmotic dehydration of carrot and the influence of this pretreatment on the post-drying processes and the quality of obtained products are analysed. Osmotic dehydration was carried out in the aqueous fructose solution in two different ways: with and without ultrasound assistance. In the first part of the research, the kinetics of osmotic dehydration was analysed on...

A nonlinear predictive control technique is developed to determine the optimal drying profile for a drying process. A complete nonlinear model of the baker's yeast drying process is used for predicting the future control actions. To minimize the difference between the model predictions and the desired trajectory throughout finite horizon, an objective function is described. The optimization pro...

The aim of the current work is to give a contribution to the study of the drying process of tomatoes through the synergy of the hot air and microwave technologies. The drying of tomatoes is a process commonly used to preserve the product and to prolong its shelf-life. In this paper, four experimental tests on the product under study, were carried out. Then, different drying diagrams were develo...

Optimization of the cereals drying operation requires a model containing the operating variables for dryers. Modeling of grain dryer is still uncertain since the drying process is unpredictable and relies on empirical parameters. The paper present the main mathematical models proposed in the last years for describing the drying phenomena. The main objective is to develop a model that would desc...

In this paper, the results of an experimental study on textile thermal drying after wet processing pretreatments are presented. The mass variation of the studied samples as a function of drying time was determined using the gravimetric method at three different temperatures: 100°C, 110°C and 120°C. A polynomial model was found and established to follow the drying phenomenon of wet textile fabri...

Industrial drying lines of resin-impregnated paper are formed by contiguous furnaces where hot air jets impinge on the surface moving sheet. The number production parameters that conditions process is very high, making final prediction, and optimal adjustment parameters, complex tasks. A novel numerical tool for fast prediction this industrial presented. model, obtained from local mass energy e...