This research to design and build a machine for briquetting biomass from Solid rubberwood, hot extrusion process with compression screw. By a large fuel briquetting 50 cm long, 80 cm, 100 cm high cylinder compression, which is designed to resemble the shape of a tailings area 20 cm cut adhesive bot circles 6 cm in diameter, and hit install router to heat diameter. 8 cm long and 20 cm w, by 1650 there is a 2-horsepower motor, around 1450, etc are in the performance testing machine for briquetting biomass by using rubber wood rubber wood size 3 sizes include 3 mm 4 mm size, rubber wood and rubber wood-intimate size 5.Lookin from the size of the trial found that the rubber wood suitable for briquetting machines, rubber wood is 5 mm. humidity is suitable for briquetting machines, 10 percent is the optimum temperature for the machine, briquetting is 290° c – 250. Time to start compressing air compressor is suitable for briquetting machine 5 minutes with biomass production bar located at 23.06 kgs per hour. Fuel rods are 6 cm in diameter, with a hole in the Middle, 2 cm in diameter, the average length of the fuel rods is equal to the value of fuel rods is 6.12 cm of vertical axis. The horizontal axis, and the axis is at 68.76 60.14 kg per square metre and 49.25, respectively. Heat energy values are at 6047.7622 calories per gram. Joy of the fuel rods are the percentage performance of the machine ........... briquetted 83.33% based on the efficiency of the motor is at 5.12% of the performance hit of 36.36% annual net return is baht 123,648 payback period of 3 months 16 days.
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