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Atomization and Sprays
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ISSN Druckformat: 1044-5110
ISSN Online: 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

ABSTRAKT

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:

EFFERVESCENT ATOMIZATION AT LOW MASS FLOW RATES. PART I: THE INFLUENCE OF SURFACE TENSION
Atomization and Sprays, Vol.3, 1993, issue 1
Paul E. Sojka, P. G. Gosselin, Arthur H. Lefebvre, M. T. Lund
DETAILED INVESTIGATION OF THE INFLUENCE OF FLUID VISCOSITY ON THE PERFORMANCE CHARACTERISTICS OF PLAIN-ORIFICE EFFERVESCENT ATOMIZERS
Atomization and Sprays, Vol.11, 2001, issue 2
Colin J. Bates, Phil J. Bowen, M. E. Ferreira, J. C. F. Teixeira
EFFERVESCENT ATOMIZATION OF HIGH-VISCOSITY FLUIDS: PART I. NEWTONIAN LIQUIDS
Atomization and Sprays, Vol.1, 1991, issue 3
Paul E. Sojka, Harry N. Buckner
EXPERIMENTAL STUDIES ON BLUFF BODY−ASSISTED AIRBLAST ATOMIZER
Atomization and Sprays, Vol.26, 2016, issue 11
Debi Prasad Mishra, Swarup Y. Jejurkar, Manisha B. Padwal
COMPUTATIONAL AND EXPERIMENTAL STUDY OF JET INTERACTION FLUIDIC INJECTORS
Atomization and Sprays, Vol.21, 2011, issue 2
Stephen D. Heister, Yu Matsutomi, Shreyas Bidadi