Eventos Anais de eventos
COBEM 2023
27th International Congress of Mechanical Engineering
Construction of a 1 to 5 Scale Vertical Intermittent Coffee Dryer Prototype
Submission Author:
Aleson Gleik Silva Chaves , MG , Brazil
Co-Authors:
Aleson Gleik Silva Chaves, Katrine Barbosa Oliveira Chaves, Mateus Sousa , Fabiano Drumond Chaves
Presenter: Katrine Barbosa Oliveira Chaves
doi://10.26678/ABCM.COBEM2023.COB2023-1914
Abstract
Drying is a crucial step in the coffee production process, consisting of removing moisture from the beans to preserve them and guarantee their quality and flavor. Coffee dryers are large equipment, usually located in the field, so drying tests require time and entail high fuel costs, in addition to requiring large amounts of grain samples. A scaled equipment in a laboratory allows further studies of the drying process of coffee beans. In view of this, a prototype of an intermittent vertical coffee dryer was built on a scale of 1 to 5, with the objective of enabling tests and applications in the laboratory. The prototype, even being built on a reduced scale, presented all the functionalities of a dryer on a commercial scale. This was instrumented with a temperature sensor and an actuator responsible for feeding the thermal system. Data acquisition was performed by microcontroller. The data obtained were sent using serial communication between the microcontroller and the LabVIEW® software. The results show that a prototype was obtained that allows optimizing coffee drying, aiming at reducing fuel consumption and obtaining better product quality. The analyzes were carried out through readings of the temperature graph, traced using the LabVIEW® software.
Keywords
Microcontrollers, Temperature sensors, Coffee dryers, Manufacture of Prototypes

