首页|The effect of orifice shape and the injection pressure on enhancement of the atomization process for pressure-swirl atomizers
The effect of orifice shape and the injection pressure on enhancement of the atomization process for pressure-swirl atomizers
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NSTL
Elsevier
The following paper presents results of studies on the atomization process of water in pressure-swirl atomizers with different shapes of orifice using a laser diffraction technique. The effect of the shape of the orifice and the injection pressure on the droplet size distributions and mean droplet diameters was analyzed. The results obtained showed that droplet size decreases with an increasing injection pressure and droplet size distributions are expanded. The smallest droplet diameters were obtained by atomization in profiled and conical shaped orifice atomizers, however the largest droplet diameters were achieved for plain orifice atomizers. The analysis of the interfacial surface produced by the atomizers has shown that the greater enhancement of the atomization process had occurred using profiled and conical shaped orifice atomizers compared with plain orifice atomizers. The correlation for the Sauter mean diameter as a function of the Reynolds number and the ratio of orifice length to diameter has been proposed. The paper is related to agricultural water management. The data obtained are important from the point of view of the design of atomizers, agricultural treatments and crop protection. (C) 2016 Elsevier Ltd. All rights reserved.
AtomizationPressure-swirl atomizerDroplet size histogramSauter mean diameter
Broniarz-Press, L.、Wlodarczak, S.、Matuszak, M.、Ochowiak, M.、Idziak, R.、Sobiech, L.、Szulc, T.、Skrzypczak, G.
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Poznan Univ Tech, Fac Chem Technol, Dept Chem Engn & Equipment, 4 Berdychowo St, PL-60965 Poznan, Poland
Poznan Univ Life Sci, Fac Agron & Bioengn, Dept Agron, 11 Dojazd St, PL-60632 Poznan, Poland
Ind Inst Agr Engn, 31 Starolecka St, PL-60963 Poznan, Poland
NSTL
Elsevier
