Experimental investigation of liquid-fuel atomization using Hartmann acoustic generator

✍ Scribed by Ashgarali I. Khandwawala; Ramamurthy Natarajan; Makam C. Gupta

• Book ID: 103090863
• Publisher: Elsevier Science
• Year: 1974
• Tongue: English
• Weight: 712 KB
• Volume: 53
• Category: Article
• ISSN: 0016-2361
• DOI: 10.1016/0016-2361(74)90047-7

✦ Synopsis

The Hartmann acoustic generator has been used in the present experiments to atomize high-speed diesel oil, aviation kerosene and light furnace oil. The effects of upstream air pressure (196-490 kPa), nozzle diameter, and frequency of sound field (5000-22 000 Hz) on the mean droplet size of the spray have been investigated. The experiments showed that the degree of fuel atomization was much more sensitive to a variation in the upstream air pressure than to a variation in the acoustic frequency.

Atomization was almost independent of fuel viscosity; thus burners incorporating these acoustic generators should prove particularly suitable for the atomization and combustion of heavy fuel oils. It was dependent mainly on surface tension and fuel density. A single correlation has been obtained for all three fuels, within the range of experimental conditions investigated, but attempts to develop a dimensionless expression incorporating surface tension and density were unsuccessful, partly because of the small range of these properties examined.