Laminar burning velocity of some coal derived fuels

The laminar burning velocity of seven different coal-derived liquid fuels have been measured in a constant-volume combustion vessel using transient pressure technique. The test conditions included the type of fuel, equivalence ratio, initial mixture temperature, and pressure. The results showed that coal-derived liquid fuels generally exhibit lower laminar burning velocity than iso-octane fuel. The maximum laminar burning velocity occurred at nearly stoichiometric mixture, but burning velocity decreases as the mixture becomes more lean or more rich. Over the range of the studied test conditions, a correlation was developed to fit the laminar burning velocity data with the main governing parameters.