The Effect of Use of Adhesive to Calorific Value Cymbopogon Nardus Waste Briquettes

The consumption of fuel in the community is getting higher day by day so it has an impact on its shortage and scarcity. The search for potential energy sources as alternative fuels is increasingly being developed. In this livelihood, renewable alternative energy is needed. The Cymbopogon nardus plant which has taken its oil through a refining process and eventually becomes waste is still possible for use as briquettes. This study will examine Cymbopogon nardus waste briquettes' calorific value with the use of tapioca and damar adhesives so that their presence can be applied to the community. The method of making briquettes made from Cymbopogon nardus waste with a concentration ratio of 90%, 80%, 70%, and 60% of the use of adhesives. The combination of raw materials and adhesives is then given a compaction compression process. The result of research, Cymbopogon nardus waste briquettes the calorific value with tapioca adhesive is 9972.55 kJ/kg at a ratio of 90%, while the calorific value with damar adhesive is 11318.84 kJ/kg. The use of adhesives in the process of making Cymbopogon nardus waste briquettes shows the effect of the calorific value. Of course, the hope in the development of briquettes that utilize Cymbopogon nardus waste makes a real opportunity to be applied to the community in efforts to develop renewable energy.