the drying behavior and characteristics of date paste were studied at temperatures of 60, 70, and 80ºc as thin layer with sample thicknesses of 1, 1.5, and 2 cm in a laboratory scale vacuum chamber. modeling of drying kinetics of date paste was investigated based on the specific temperatures and sample thicknesses. the experimental moisture loss data were fitted to eight thin layer drying model...

1. Many measurements were made with the two systems H(2)/NaOH C/NaOH C + x gm. gelatin/H(2) H(2)/NaOH C/KCl (sat.)/NaOH C + x gm. gelatin/H(2) in which x was varied from zero to more than enough for complete combination. 2. From these measurements the change in boundary potential with quantity of gelatin present was determined. 3. The boundary potentials were calculated by means of a modified f...