Effects of Mixing Ratio between Eucalyptus Bark Charcoal and Cassava Starch on the Performance of a Charcoal Block Pressing Unit

Abstract:

The objective of this research was to study on charcoal block production from eucalyptus bark using screw press unit. The physical and thermal properties of charcoal and factors affecting the testing units performance, which were mixing ratios by weight of eucalyptus bark charcoal: cassava starch: water content (1: 0.10: 0.75, 1: 0.15: 0.75 and 1: 0.20: 0.75) and screw pressing speeds (90, 105, 120 and 135 rpm) were studied. The optimum of screw press unit was screw pressing speed of 120-135 rpm and a mixing ratio by weight of eucalyptus bark charcoal: cassava starch: water content of 1: 0.15: 0.75. The test result at the feed rate of 140 kg/hr indicated that the machine had a capacity of 119.71-121.95 kg/hr, specific energy consumption of 12.33-12.73 W-hr/kg, charcoal block bulk density of 467.55 to 468.88 kg/m³, charcoal strength of 152.58 to 153.60 kPa and heating value of 21.95 MJ/kg for charcoal block moisture content of 7.46 % (w.b.)

• Periodical: Advanced Materials Research (Volumes 931-932)
• Pages: 1568-1573
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.931-932.1568
• Online since: May 2014
• Authors: Kittipong Laloon, Somposh Sudajan*
• Keywords: Alternative Energy, Biomass, Charcoal, Charcoal Block, Eucalyptus Bark

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