Fig 1.
Schematic diagram of pressure-nozzle based handheld electrostatic disinfection device for surface decontamination.
Table 1.
Physical properties of various disinfectants for the chargeability studies and suitability for electrostatic spraying.
Fig 2.
Pictorial representation of experimental setup for the optimization of parameters of the motorized handheld electrostatic disinfection device.
Fig 3.
Experimental set-up of electrostatic disinfectant charging and charge-to-mass evaluation (inset: charging electrodes of varying inner and outer diameter for the charging of disinfectants).
Fig 4.
Charge-to-mass ratio variation with the variation of electrode position from the nozzle tip at various applied voltage.
Fig 5.
Charge-to-mass ratio variation with varying charging electrode size (inner diameter) and electrode ring material size (outer diameter).
Fig 6.
Effect of applied liquid pressure on charge-to-mass ratio and spray current at a fixed applied voltage.
Fig 7.
Plot of variation of charge-to-mass ratio with the variation of applied voltage for different nozzle of diameter of 0.15 and 0.2 mm at a fixed liquid pressure.
Table 2.
Variation of charge-to-mass ratio and spray current with pressure and flow rate.
Fig 8.
Charge-to-mass ratio variation with the variation of target distance from the nozzle tip.
Fig 9.
Charge-to-mass ratio of various disinfectant solutions.
Fig 10.
Droplet size and its distribution for 0.15 mm and 0.20 mm nozzles at 5 MPa pressure.
Fig 11.
Droplet size and its distribution for various disinfectant solutions.
Table 3.
Measured charge-to-mass ratio and droplet size of various disinfectant solutions.