Effect of swirl chamber on uniform spray coating of surfaces using Spill-Return Atomiser (SRA)

Burby, ML; Nasr, GG; Nourian, A; Stewart, JA

Abstract

The atomisation of liquid disinfectants is an efficient means of delivering disinfectant agents within the healthcare environment; a Spill-Return Swirl Atomiser (SRA) with a long swirl chamber was designed for this purpose. The control of spray characteristics and the determination of the coating performance of the SRA on various surfaces are essential to achieve the desired efficiency in the disinfection procedure. This paper presents the results of the investigation that were carried out on the effect of swirl chamber length on spray characteristics with respect to drop size, flow rate, cone angle and penetration distance, as well as the coating performance of the atomiser on sample surfaces that are commonly found within the healthcare environment. It has been found that the optimisation of swirl chamber length is crucial in the production of fine droplet sizes (i.e. SMD ≤ 20m). Along with long penetration, low flow rate (≤ 0.1l/min) and wide spray cone angle, which are also necessary for uniform coating of disinfectant upon surfaces.

Citation

Burby, M., Nasr, G., Nourian, A., & Stewart, J. Effect of swirl chamber on uniform spray coating of surfaces using Spill-Return Atomiser (SRA). Presented at ILASS Americas 2011 - 23rd annual conference on liquid atomization and spray systems, Ventura, California, United States of America

• Presentation Conference Type: Other
• Conference Name: ILASS Americas 2011 - 23rd annual conference on liquid atomization and spray systems
• Conference Location: Ventura, California, United States of America
• End Date: May 18, 2011
• Publication Date: May 18, 2011
• Deposit Date: Feb 9, 2021
• Publicly Available Date: Feb 9, 2021
• Publisher URL: http://www.ilass.org/2/recent-papers-form.html
• Related Public URLs: http://www.ilass.org/2011/
• Additional Information: Event Type : Conference