Effect of Various Fuel Blends on the Laminar Burning Velocity of Ammonia–Air Mixtures

The laminar burning velocity of pure ammonia–air premixed mixture is very low (~7 cm/s). Many studies have been conducted in enhancing the flame speed and flammability limits of ammonia flames to consider it as a plausible carbon-free fuel for practical applications. Therefore, the chapter entails the variation in the laminar burning velocity of pure ammonia fuel with the addition of various suitable hydrocarbon fuels, both liquid and gaseous, reported in the literature so far. The effect of equivalence ratio, pressure, temperature, and oxidizer type will also be compared for extended insight into the major factors affecting the burning velocity. Detailed reasoning related to chemical kinetic study will be analyzed with necessary tabulated data, figures, and kinetic mechanisms available for ammonia and its blends.