Analysis of the energy performance of a modified mechanically spouted bed applied in the drying of alumina and skimmed milk

Autor(es)

Brito, R. C. ^[1] ; Sousa, R. C. ^[2] ; Bettega, R. ^[1] ; Freire, F. B. ^[1] ; Freire, J. T. ^[1]

Afiliação do(s) autor(es)

^[1] Univ Fed Sao Carlos, Dept Chem Engn, Rod Washington Luiz Km 235, POB 676, BR-13565905 Sao Carlos, SP - Brazil

^[2] Univ Fed Espirito Santo, Dept Rural Engn, Campus Alegre, Alto Univ S-N, BR-29500000 Alegre, ES - Brazil

• Tipo de documento: Artigo Científico
• Fonte: CHEMICAL ENGINEERING AND PROCESSING; v. 130, p. 1-10, AUG 2018.
• Citações Web of Science: 0

Resumo

Several spouted bed configurations have been proposed in order to overcome the limitations and disadvantages of the conventional spouted bed (CSB). This paper evaluates the performance of a modified mechanically spouted bed (MMSB) fitted with a helical screw, which was applied in the drying processes of alumina and skimmed milk. In this equipment, the cyclic movement of the solid phase was promoted by the screw and the air was supplied perpendicularly, following the CSB design. The main objective of this study was to analyze the energy performance of the MMSB. The results showed that the MMSB provided a drying process under stable conditions at air velocities lower than the minimum spout velocity, due to inclusion of the helical screw, leading to greater energy efficiency and lower energy consumption. (AU)

• Processo FAPESP: 17/01856-7 - Desenvolvimento e otimização energética de um leito de jorro com sistema de recuperação de calor do ar de exaustão, operando sob condições de intermitência
• Beneficiário: Ronaldo Correia de Brito
• Modalidade de apoio: Bolsas no Brasil - Doutorado