Recent improvements of the Heat Flux setup to determine laminar burning velocities of liquid fuels

摘要

The Heat Flux experimental setup at OWI has been further improved to provide more accurate measurement data of the laminar burning velocity. The new burner head is a significant improvement. The heat conduction between heating jacket and burner plate has been improved and the thermocouple scatter has been reduced. A reduced hole diameter and pitch permits a larger range of unburnt gas velocities. It could be shown, that the adiabatic laminar burning velocity is highly dependent on fuel composition. The main focus within this study was the determination of S_L of ethanol and gasoline, which has been achieved with the recent improvements.