Uji Kinerja Generator Berbahan Bakar Biogas dengan Penambahan FABA (Fly Ash Bottom Ash)

Abstract

One of the countries with a large population is Indonesia. The demand for energy, especially fuel, continues to increase in line with the growing population. So far, energy use still depends on fossil sources, whose availability is increasingly depleting. Therefore, the development of alternative fuel sources as substitutes for fossil fuels has become very important. Currently, the use of renewable energy is continuously developing, one of which is through biogas derived from animal manure. The development of new and renewable energy is carried out by converting biomass. Biogas is one of the technologies resulting from biomass conversion—gas that is produced through fermentation or anaerobic activity of organic materials. The anaerobic fermentation process of organic materials such as cow manure and rice straw with Carbon/Nitrogen (C/N) ratio values of 26, 28, and 30, calculated using the Goal Seek feature in Microsoft Excel, is the method used in this study. The results showed that cow manure and rice straw fermented for 21 days at an average temperature of 33.63˚C, an average pH value of 6.93, produced an average electrical power of 217 Watts, and the best generator rotation speed reached 280.8 rpm.