info:eu-repo/semantics/article
Modeling of maize breakage in hammer mills of different scales through a population balance approach
Fecha
2020-09-20Registro en:
Cotabarren, Ivana María; Fernández, María Paz; Di Battista, Carla Agustina; Piña, Juliana; Modeling of maize breakage in hammer mills of different scales through a population balance approach; Elsevier Science Sa; Powder Technology; 375; 20-9-2020; 433-444
0032-5910
CONICET Digital
CONICET
Autor
Cotabarren, Ivana María
Fernández, María Paz
Di Battista, Carla Agustina
Piña, Juliana
Resumen
In this contribution a dynamic model ofmaize breakage in hammer mills of different scales is proposed through a population balance approach. The results of the pilot-scale experiments were used to fit the parameters of the breakage and classification functions, considering the effects of rotor speed and screen opening size. The model was validated with both pilot- and industrial- scales steady-state data, which also included variations in feed rates. The developed model was used to predict the dynamic behavior of the product mass geometric mean diameter and mill hold-up as a function of disturbances in the feed rate and the rotor speed. These results are highly valuable since they indicate the feasibility of using the fittedmodel to predictwith confidence new operating points, study industrial milling performance and optimize hammer mill operation reducing the need to carry out expensive and time-consuming experimental tests.