The propagation and ignition of the finely dispersed coal-water aerosol

Effect of the Addition of Petrochemicals onto the Atomization and Ignition of the Coal-Water Slurry Prepared from the Wastes

“…Such nozzle can atomize the liquids with kinematic viscosity below 3 × 10 −5 m 2 /s. In contrary to the case described in [16], the nozzle used in this work can atomize the CWS with concentration of solid part more than 50 wt.%. Wider channels of nozzle leads to production of bigger aerosol droplets.…”

“…Therefore, one can see the evolution of the aerosol with propagation distance. The more details about the used experimental technique are shown in [16]. The essential difference from the previous experiments is usage of the nozzle with wider inner channels (diameter is about 1.5 mm).…”

“…Wider channels of nozzle leads to production of bigger aerosol droplets. The nozzle used in this work allows the mean size of the aerosol about 500 µm that is just 1.5-2 times bigger than used in [16].…”

“…The sizes of them were analysed using the shadow photography approach within the chosen depth of field around the focal plane of macro objective. The additional details about post-processing of the recorded video are available in [16].…”

“…The thermal effects of different additions to CWS are investigated well enough but the influence of them onto the fuel atomization is unclear. The limitations of the existing atomization techniques bind the fuel droplet sizes to slurry viscosity (and, thus, to the coal-water ratio) [16,17]. This, in turn, directly defines the combustion heat and the uniformity of the heat production.…”