Effect of Bioslurry Fuel Viscosity and Density on Combustion Characteristics Selly Febriana, Hendrix Y. Setyawan, Beauty S. Dyah Dewanti
Brawijaya University
Abstract
The industrial sector, Indonesia^s economic posture 2045 determinant, uses coal as energy fulfiller. Coal is a non-renewable dirtiest energy source, therefore alternative renewable energy (EBT) is needed. Biochar, a coal alternative, can be combined with bio-oil to form slurry fuel which can be an EBT. Viscosity and density are both liquid parameters that affect rheology performance as well as combustion. Combustion performance of slurry fuel is reviewed using single droplet combustion method. In this study, slurry fuel was made of biochar and bio-oil from rice husks, bagasse, and corn cobs, with variations of biochar concentrations of 15%, 20%, 25%, and 30%. The purpose of this study was to determine the relation of viscosity and density to combustion characteristics, as well as slurry fuel diameter, ignition delay time, and flash point. The results showed that viscosity and density affect the combustion characteristics of bio-slurry fuel. An Increase in viscosity leads to an increment of ignition time, and flash point. An Increase in density leads to an increment in droplet diameter and flash point. Viscosity does not have a significant effect on the diameter of the droplet, and density does not have a significant effect on ignition time
Keywords: Slurry Fuel, Density, Viscosity, Single Droplet Combustion.
