Effect of Coal Particle Size on Coal-Water Slurry (Cws) Atomization

Combustion, performance and emission of a diesel engine fuelled with diesel doped with carbon black

“…one is higher viscosity. The higher viscosity fuels will display larger SMD (Sauter mean diameter)[23,24] resulting in poorer spray formation and hence longer ignition delay. The ignition delay for diesel, Carbodiesel5, Carbodiesel10, Carbodiesel15 and Carbodiesel20 at full load is by about 10.1 CA, 10.3 CA, 10.4 CA, 10.5 CA and 10.6 CA respectively.…”

The Review of Ignition and Combustion Processes for Water-Coal Fuels

“…At another hand, it increases the viscosity of the slurry and therefore make droplet more stable in presence of the external aerodynamic forces. The work [43] shows that average size of the droplets by Sauter (at the end of the secondary droplets decay for finer droplets) is bigger than average droplet size for the WCF decay starting from bigger sizes ( fig. 12b).…”

“…12b). This effect could be explained [43] by the decrease of the slurry viscosity at particle size growth.…”

“…Characteristics of an atomization of the WCF made from coal dust with particle sizes (32-45 mkm, 45-63 mkm and 63-90 mkm): the size distribution of droplets (а); the dependence (b) of the average droplet size by Sauter (at the secondary WCF decay) on pressure at the nozzle [43].…”

Atomization performance of petroleum coke and coal water slurries from a twin fluid atomizer

“…To date, very few have attempted to characterize twin fluid sprays of slurries made from solid carbonaceous fuels. Son and Kihmk [10] and Shirley and Tsai [11] successfully characterized the droplet size of coal water slurries using a laser diffraction approach.…”