บทคัดย่องานวิจัย

หมวดหมู่ : ฐานข้อมูลงานวิจัย

Construction design and performance of manual coffee shell separator.

Sinurat, M.; Hardjosuwito, B.; Maspanger, D. R.;

Menara Perkebunan Year: 1992 Vol: 60 Issue: 4 Pages: 138-144 Ref: 8 ref.

1992

บทคัดย่อ

Construction design and performance of manual coffee shell separator.

A manually operated coffee shell separator was designed in Indonesia, taking into account the shape, size, weight and aerodynamic properties of coffee shells and beans, as well as air flow. The separator was made from locally available materials and consisted of a wooden frame, radial fan, feed hopper, adjustable separating duct and 2 power transmitting roller chains. At 380 rev/min fan speed, the separator produced 2970 m3/h air capacity, air flow static pressure of 7.5 mm of water and 85 kg/h feed capacity. The performance of the separator was evaluated using a mixture of dry robusta coffee beans and shells. The separator was operated at 85 kg/h feed capacity and fan speeds of 150-225 rev/min. The most effective separation occurred at 170 rev/min fan speed. 2% of beans were carried up into the air stream with the shells and 2% of shells collected along with the beans at this fan speed.