Efficiency evaluate of ginger candy machine

Abstract

This research objective was to design the ginger candy compression machine and determine the efficiency and capacity for saving time and labor in pressing ginger candy for community enterprise groups Pim Malaherb, Chiang Rai Province. Ginger candy compression machine consists of the main structure, namely the extruder and power transmission systems. The machine was designed with two horsepower motors or 1.5 kilowatts to drive the shaft and to rotate the screw through the flange. This study installs the inverter to control the motor speed at 1,000±10 1,200±10 and 1,400±10 rpm. The extrusion die had an average diameter of 9.7 millimeters. The results found that the motor's speed that was suitable for compression was a Rotational speed of 1,400±10 rpm. When the speed increased, the efficiency and the working rate increased too. The amount of ginger stirred was used at 300 500 600 900 1,000 1,500 2,000 and 3,000 grams. The maximum efficiency was 90.85 percent. The efficiency increased with the amount of ginger stirred. The ginger candy compression machine's engineering economic analysis results found that the machine's operating cost was 18,063.6 baht per year. When considering the machine's operation at 792 hours per year, the payback period was 6 months and 11 days.