Use of Temperature Front Parameters to Compute the Drying Front

✍ Scribed by Sz. Szöke; V. Wertz; E. Persoons

• Book ID: 102572355
• Publisher: Elsevier Science
• Year: 1996
• Tongue: English
• Weight: 471 KB
• Volume: 65
• Category: Article
• ISSN: 0021-8634
• DOI: 10.1006/jaer.1996.0105

✦ Synopsis

Small bins were used to conduct cooling and drying experiments on wheat , barley and peas . Four conceptual models are described . They consider different ways in which water may leave the grain . A new equation has been developed to take the hysteresis phenomenon into account . The temperature front occurring at the beginning of the drying process is modelled . An optimisation procedure is used to adjust the parameters for the heat and mass transfer coefficients to this temperature front using experimental data . The best adjusted parameters are then used to compute the drying front . The four models give similar results and the general quality of the models with all three products are similar . Information extracted from the exchanges taking place in the temperature front are not sufficient to compute the drying front accurately . On the contrary , it is found that parameters obtained by optimising the models using results from drying experiments and the drying front give better predictions .