Preparation of Cow Dung Bio-briquettes (CDBs) for Gassification Stoves as Renewable Energy Sources

Abstract

Enormous demand on fossil fuels has led to massive exploitation. Because of its non-renewable sources, the stock will decrease rapidly. Therefore, investigation on renewable energy sources is necessary to be done. One of the renewable energy sources is biomass of cow dung, in which will converted into energy via gasification process. In some cases, cow dung is so abundant that is not completely fed to biodigester to produce biogas. Commonly in the countryside, the cattle sheds places closely to the housing and un-utilize cow dung will causes health problems in the rural environment. Cow Dung Bio-briquettes (CDBs) preparation is one of the pre-handling methods for biomass gasification process to obtain syngas. Cow dung were processed in several stages, those are sun drying, grinding, sieving, and briquetting using a hydraulic press. In this study, the effects of particle size of cow dung powder and tonnages of hydraulic pressure were investigated. The cow dung powder were screening in 20, 40, 60, and 80 mesh. The pressure of hydraulic press were varied in 2, 3, and 4 tonnages. CDBs quality were determined based on Indonesian National Standard SNI 01-6235-2000. The acceptable CDBs was made used cow dung with particle size of-20+40 mesh and 4 tons of hydraulic pressure.