Programa computacional para determinar as propriedades da mistura ar seco-vapor d ́água e atividade da água no armazenamento de grãos.

Abstract

The determination of the psychrometric properties involves many parameters and to be able to perceive for tabular, graphic and thermodynamic equations methods. The equilibrium relativity humidity or water activity value of grains storage to denote success of the storage. The objective of this work was to develop a computer program (PSIAw) for determining the psychrometric properties of air and to denote of the water activity of grains, whereas presenting a simple interface that provides the professional with the necessary information. Within the limits for temperatures from 0 oC to 100oC and of the preservation and storage of grains under tropical conditions, it is concluded that the software generates satisfactory results