Ignition of Fuel-rich Propellant Coated with Ignition Support Material in the Ramjet Combustor Condition

Abstract

Ignition test of the fuel-rich propellant coated with ignition support material in the ramjet combustor condition was conducted. Ignition delay and flame holding was measured. Fuel grain consist of HTPB mixed with AP particle 15 wt.%, Al particle 5 wt.%. To cause the short ignition delay, ignition support consist of NC/BKNO 3 and composite propellant was coated to the fuel grain. Ethanol blended H 2 O 2 gas generator control the temperature, pressure, O 2 concentration in the oxidizer gas in the air.