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Atomization and Sprays
Fator do impacto: 1.262 FI de cinco anos: 1.518 SJR: 0.814 SNIP: 1.18 CiteScore™: 1.6

ISSN Imprimir: 1044-5110
ISSN On-line: 1936-2684

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Atomization and Sprays

DOI: 10.1615/AtomizSpr.v16.i7.20
pages 737-748

INEXPENSIVE AIR-ASSIST ATOMIZATION FROM 80,000 ORIFICES

Thomas J. Hoverman
School of Aeronautics and Astronautics, Purdue University, 1375 Aviation Drive, West Lafayette, IN 47907-2015, USA
Steven Collicott
School of Aeronautics and Astronautics, Purdue University, 1375 Aviation Drive, West Lafayette, IN 47907-2015, USA

RESUMO

A new method to produce small drop sizes with large liquid mass flow rates is demonstrated. In the present example, droplets with Sauter mean diameter of 16−80 μm are produced with liquid mass flow rates of 0.4−1.5 L/min (0.1−0.4 gallons/min). The application of inexpensive existing technology has produced a device operating up to 80,000 orifices in parallel in an air-assist mode. Capillary techniques from decades of successful on-orbit control of liquid rocket propellants in satellites are used to deliver the liquid and the air to the multitude of orifices in a controlled manner. The air and liquid are maintained as separate flows until the atomization process. Pressure drops and flow rates are presented for several configurations. Droplet size distributions are measured by laser diffraction droplet sizing.


Articles with similar content:

LIQUID SHEET DISINTEGRATION BY IMPINGING AIR STREAMS
Atomization and Sprays, Vol.1, 1991, issue 2
Arthur H. Lefebvre, J. E. Beck, T. R. Koblish
EFFERVESCENT ATOMIZATION OF HIGH-VISCOSITY FLUIDS: PART I. NEWTONIAN LIQUIDS
Atomization and Sprays, Vol.1, 1991, issue 3
Paul E. Sojka, Harry N. Buckner
MODELING THE EFFECTS OF GAS DENSITY ON THE DROP TRAJECTORY AND BREAKUP SIZE OF HIGH-SPEED LIQUID DROPS
Atomization and Sprays, Vol.9, 1999, issue 5
Rolf D. Reitz, C. H. Lee
INDEPENDENT CONTROL OF LIQUID FLOW RATE AND SPRAY DROPLET SIZE FROM HYDRAULIC ATOMIZERS
Atomization and Sprays, Vol.7, 1997, issue 2
D. Ken Giles
IMPACT OF PHYSICAL PROPERTIES ON PRIMARY BREAKUP FOR A DIESEL NOZZLE CONFIGURATION
Atomization and Sprays, Vol.21, 2011, issue 3
F. Mathieu, D. Martin, Reinhold Kneer, Manuel Armin Reddemann