Karakterisasi Termal Briket Ampas Tebu melalui Uji Termogravimetri

Abstract


 
 
 
 Sugarcane bagasse has potential to be used as one of the renewable energy resources. The present work is dealt with thermal characterization of sugarcane bagasse briquettes through thermogravimetry method. The briquette samples are cylinder of 40 mm in diameter and 20 mm long. Both non-carbonized and carbonized briquettes are considered in this work. The samples comprise two different densities, i.e. 1.3 g/cm3 and 2.3 g/cm3. The samples are heated in an inert and non-isothermal atmosphere with heating rates of 5oC/min and 15oC/min. The TG curves exhibit three phases of thermal decomposition. The decomposition of the samples with higher heating rate and higher density shifts to higher temperature. The decomposition of the carbonized samples also shift to higher temperature, but to a lesser degree. The initial degradation temperature ranges from 186oC to 273oC, while the final degradation temperature ranges from 328oC to 432oC. The temperature at which the rate of decomposition is amximum ranges from 232oC to 303oC. At higher heating rate, the degradation rate shifts to lower temperatures