Abstract
An experimental study of a further development of a novel atomizing nozzle is presented. The novelty of the nozzle lies in the incorporation of a self-driven, hydraulic turbine, which provides improved atomization performance. The inclusion of this rotating component promotes smaller particle sizes within the plume for a given pressure and flow rate. A new version of the nozzle is described in terms of both design and performance. Previous versions of the nozzle produced spray plumes by a variety of atomization processes. This new version incorporates a series of enclosed spray channels that provide a spinning disk-type atomization effect. The effect on the spray plume is to produce a Sauter mean diameter that varies with fluid feed pressure and a plume spray density that is similar to a solid cone-type plume. The Sauter mean diameter was found to vary within the range of 80-190 µm. The observed droplet size distributions suggest that the nozzle produces a spray similar to that produced by spinning disk atomizers in the outer region of the spray plume. The volumetric concentration in the inner spray is reduced to 40% of that in the outer plume, and the droplets present in this region are smaller than in the outer plume. Copyright © 2006 by Begell House, Inc.
Original language | English |
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Pages (from-to) | 749-762 |
Number of pages | 14 |
Journal | Atomization and Sprays |
Volume | 16 |
Issue number | 7 |
Publication status | Published - 2006 |