Fine spray behaviour upon impaction of varied material surfaces

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

Abstract

A mobile fine spray unit, utilising a spill-return atomiser has been developed for the purpose of
decontamination within healthcare environments. The unit must be able to spray uniformly onto any
given surface, providing ‘mist like’ coverage. Any streaking patterns on the surface during or after
spray application would jeopardise the efficiency of delivering the decontaminant. Thus it is pertinent
to understand the behaviour of droplets impacting on various surfaces, and particularly the conditions
that cause streaking.
Within this investigation four sample surfaces; steel, acrylic, glass and laminated wood have been
sprayed separately using the spill return device with a substitute MRSA disinfectant liquid. Through
experimentation the optimum spray input conditions for the atomiser: distance, time and pressure
required to uniformly coat various surfaces without the occurrence of streaking have been obtained.

Citation

Stewart, J., Nasr, G., Burby, M., & Nourian, A. Fine spray behaviour upon impaction of varied material surfaces. Presented at ILASS Americas 2010 - 22nd annual conference on liquid atomization and spray systems, Cincinnati, Ohio

• Presentation Conference Type: Other
• Conference Name: ILASS Americas 2010 - 22nd annual conference on liquid atomization and spray systems
• Conference Location: Cincinnati, Ohio
• End Date: May 19, 2010
• Publication Date: May 19, 2010
• Deposit Date: Feb 4, 2021
• Publicly Available Date: Feb 4, 2021
• Publisher URL: http://www.ilass.org/2/ILASS-2010_paperlist.html
• Related Public URLs: http://www.ilass.org/2010/
• Additional Information: Event Type : Conference