Laminar burning velocity of some coal derived fuels

The laminar burning velocity of seven different coal-derived liquid fuels h ave been measured in a constant-volume combustion vessel using transient pr essure technique. The test conditions included the type of fuel, equivalenc e ratio, initial mixture temperature, and pressure. The results showed that real-derived liquid fuels generally exhibit lower laminar burning velocity than iso-octane fuel. The maximum laminar burning velocity occurred at nea rly stoichiometric mixture, but burning velocity decreases as the mixture b ecomes more lean or more rich. Over the range of the studied test condition s, a correlation was developed to fit the laminar burning velocity data wit h the main governing parameters.