Development and validation of a heated drying air diffusion system to optimize rotary dryers and final coffee quality.

ABSTRACT: The final quality of pre-processed coffees is influenced by the applied drying technology. Thus, the aim of the study was to develop and validate a heated air flow diffusion system to optimize and reduce the drying time of rotary dryers and improve the final quality of coffee. Computational fluid dynamics was used for the simulation of the air fluid dynamics in the combustion chamber of the heat generator. It was observed that the energy losses in the upper and lower walls of the heat generator chamber were higher with an increase in the convective heat transfer coefficient. It was found that the rate of fluid flow presented a fully developed profile, in which the higher speed value was found in the central region of the outlet. The reduction in moisture content during coffee drying was di

SUBMITTER: Coradi PC 

PROVIDER: S-EPMC8219142 | biostudies-literature | 2021

REPOSITORIES: biostudies-literature