Utilization of Bus Wood (Eucalyptus) Sap with Tree Sap (Agathis dammara) as an Alternative Fuel

The purpose of this study is to process Bus (Eucalyptus) wood waste with a combination of resin tree sap (Agathis dammara) into cylindrical charcoal briquettes based on the grain size of mesh 40 and mesh 80 and determine the ultimate properties for calculating moisture, volatile matters, ash and fixed carbon. density and combustion efficiency based on the results of laboratory tests in the form of proximation tests. This study used experimental and analytical methods based on available briquette quality standards, namely commercial quality standards, Import, Japan, England and the United States. Printing of charcoal briquettes of bus bark waste charcoal briquettes with a combination of resin tree sap consisting of mesh 40 and mesh 80. The results of the proximation test of bus bark waste charcoal charcoal with a combination of resin tree sap showed that the moisture content in the briquettes was 8.93% for mesh 40 and 8.43% for mesh 80, the ash content in the briquette is 9.71% for mesh 40, and 9.83% for mesh 80, the volatile matter content in the briquette is 16.59% for mesh 40 and 16.59% for mesh 80, the fixed carbon content in the briquette is 64.77% for mesh 40 and 65.15% for mesh 80. Compressive strength and density, mesh 40 Pmax = 4.05 kg/cm2, ρ40 = 0.526 gr/cm3, for mesh 80 Pmax = 3.30 kg/cm2, ρ80 = 0.495 g/cm3 and the calorific value was 5696.29 kcal/kg for mesh 40 and 5765.29 kcal/kg for mesh 80.