Discrimnation Of Equilibrium Moisture Equations For Soybean Usmg Nonlinearity Measures

ABSTRACT

The main goal of this work is to find the best way to represent the equilibrium conditions between soybean and air. The experimental study was based on the static method using saturated salt solutions in order to regulate the vapour pressure of the air surrounding the grains. We developed a discrimination study among some ensting equations used for grains. To discriminate these equations we explored some non-linearity measures. The obtained results showed that the Halsey modified equation was the best model in terms of nonsignifiance for bias and non-linearity measures. The distribution for the estimated parameters. using simulation procedures, also showed good normal behavior for the Halsey equation.

Key words and Phrases:

• equilibrium isotherms
• soybean seeds
• nonlinear regression
• parameter estimation