Abstract
The phenomenology of droplets/wall interaction relevant to entrained-flow gasifiers has been investigated. The present study reports an experimental characterization of the sticking/spreading/rebound patterns during impact experiments of molten particles. A physical modelling approach was followed, by simulating the slag particles with synthetic wax particles impacted against a target at near-ambient conditions. The phases of impact, spread and deposition were characterized in terms of spread factor for different operating conditions. No rebound occurred under the tested conditions. Experimental data fairly well agreed with theoretical correlations from literature in terms of morphological evolution of the impacted droplets and excess rebound energy after collisions with the walls.
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