A design procedure for effervescent atomizers

Journal Article · Sat Apr 01 04:00:00 EST 1995 · Journal of Engineering for Gas Turbines and Power

DOI:https://doi.org/10.1115/1.2814090· OSTI ID:78171

Chin, J S; Lefebvre, A H ^[1]

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1. Purdue Univ., West Lafayette, IN (United States). Thermal Science and Propulsion Center

A methodology for the design of effervescent atomizers is described. The objective is to achieve sprays of minimum mean drop size for any stipulated values of liquid flow rate, air supply pressure, and air/liquid ratio. Application of the method leads to optimum values for all the key atomizer dimensions, including the number and size of the air injection holes, and the diameters of the mixing chamber and discharge orifice. It also enables optimum dimensions to be determined for a convergent-divergent nozzle should such a device be fitted to the nozzle exit to improve atomization performance. Examples are provided to demonstrate the application of the recommended design procedure and to illustrate the relative importance of various flow and geometric parameters in regard to their effects on atomization quality.

• Sponsoring Organization: USDOE
• OSTI ID: 78171
• Report Number(s): CONF-930502--
• Journal Information: Journal of Engineering for Gas Turbines and Power, Journal Name: Journal of Engineering for Gas Turbines and Power Journal Issue: 2 Vol. 117; ISSN JETPEZ; ISSN 0742-4795
• Country of Publication: United States
• Language: English

Related Subjects

20 FOSSIL-FUELED POWER PLANTS
33 ADVANCED PROPULSION SYSTEMS
ATOMIZATION
BUBBLES
FUEL INJECTION SYSTEMS
GAS TURBINE ENGINES
JET ENGINE FUELS