Design, construction and evaluation of a coffee pre-cleaning machine
The objective of this work was to design and build a machine for pre-cleaning coffee, including test for evaluating machine performance, using coffee with different material other than grain contents. The cleaning machine principle was based on air and sieve systems. The machine was designed using a mathematical model developed using the mechanical system simulation technique. A prototype was evaluated by using a mixture of coffee varieties Catuai, Mundo, Novo, Catimor and Hibridos as raw material. The coffee samples were strip-picked on the ground and cloth. Three tests were conducted to evaluate the machine, with nine replications for each test. Based on the test results, the machine showed good performance, presenting a cleaning capacity of 1060 kg h-1 with a cleaning efficiency of 76 percent, a loss index of 0.48 percent and an energy consumption of 2.5 Wh kg- of cleaned berries.
| Main Authors: | , , , |
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| Format: | biblioteca |
| Published: |
2000
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| Subjects: | COFFEA, LIMPIEZA, DISEÑO, MODELOS MATEMATICOS, PRUEBAS DE RENDIMIENTO, PROTOTIPOS, EQUIPO, |
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