Design for Two-Fluid Fine Nozzle with 50% Fill Ratio

Abstract:

Sufficient air insert by reduced liquid in flashing propellants are required to produce fine droplet size with symmetrical spray in an aerosol atomiser without swirling design. It is called novel matched valve-actuator with two-fluid fine nozzle. Two-fluid fine nozzle design is an arrangement between air-assist atomiser insert, air blast and effervescent atomiser insert. However, 50% fill ratio and 9bar on pressure can with a currently acceptable become “Benchmark Objective” in this research. The results shows a few measurement with the same volume flow rate and variable flow rate of two fluids atomiser which have been taken in the experimental. 50 ml/min for liquid flow rate and 150ml/min flow rate of insert gas could reduce droplet size less than 70μm SMD by modifying the insert to promote greater cone angle and droplet size distribution with differences on quantity of air, liquid supply and the atomising velocity. Validation of two-fluid fine nozzle results is also recommended to be carried out and compared with the experiment results which related to turbulence kinetic energy with the atomiser insert and droplet size. Further researches are concentrating on modelling droplet breakup downstream of the atomiser insert.Keywordaerosol atomiser, two-fluid fine nozzle, fill ratio, droplet size.

• Periodical: Applied Mechanics and Materials (Volumes 773-774)
• Pages: 387-392
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.773-774.387
• Online since: July 2015
• Authors: Norzelawati Asmuin*
• Keywords: Aerosol Atomiser, Droplet Size, Fill Ratio, Two-Fluid Fine Nozzle

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