Evaporation and clustering of ammonia droplets in a hot environment
Lorenzo Angelilli, Francisco E. Hernández Pérez, Hong G. Im, Pietro Paolo Ciottoli, Mauro Valorani
Abstract
Liquid ammonia has been under investigation as a possible substitute of the current carbon-based fuels. However, its thermodynamical properties are responsible for a strong cooling effect of the surrounding environment and peculiar dispersion patterns that can affect the efficiency of a combustor. Through this computational study, it is highlighted how the rapid environmental cooling and change of carrier mixture make ammonia droplets condense, despite the ambient temperature being considerably higher than the saturation one, affecting the jet topology as well.
Topics & Concepts
EvaporationAmmoniaCombustorMaterials scienceSaturation (graph theory)Dispersion (optics)Environmental scienceJet (fluid)Chemical engineeringThermodynamicsChemistryCombustionPhysicsOrganic chemistryOpticsEngineeringCombinatoricsMathematicsCombustion and flame dynamicsParticle Dynamics in Fluid FlowsAtmospheric chemistry and aerosols