Transferência de calor durante o processamento térmico em polpa de fruta armazenada em recipientes de forma cilíndrica.

Abstract

This work aims to study the heat transfer behavior of mango pulp packed in cylindrical containers. The study presents the solution for the diffusion equation with constant first kind boundary condition. This one-dimensional diffusion equation was discretized using the finite volume method with a fully implicit formulation, considering the case of an infinite cylinder. The experimental treasury system consisted of four cylindrical contai ners of different dimensions aluminum, which were filled with mango pulp for which the thermal diffusivity is estimated. The software used for the optimization was “Infinite Cy linder”developed by Silva (2010). The results obtained for the thermal diffusivity when compared to literature values, proved to be consistent, especially when using the cylinder with the larger diameter. They also showed that using simulations is possible to deter mine the timing of heat treatment, obviating the realization of experiments each time a new cylindrical container is used to store the product.