Combustion Characteristics of Biocoke Added to Aluminum Powder

Rocket fuel is mainly developed based on solid fuel and liquid fuel. Liquid fuel has environmental pollution instead of high propulsion power and solid fuel has hard ignition control instead of high-density fuel. The hybrid rocket has developed by combine double merits of liquid fuel and solid fuel properly according to the purpose. However, both are fossil fuels and have problems with resources and environmental pollution. New High density solid bio-fuel ”Biocoke” can be produced domestically and has carbon-neutral properties, its use as a substitute for rocket fuel is significant. Especially, Biocoke burns stable and slowly, it has less thrust than conventional fuel and cannot obtain propulsion. This study investigated a slow combustion characteristic while homogeneous combustion by adding a highly combustible aluminum powder in Biocoke. It is found that blended aluminum powder affects in the char combustion zone.