Oddelenie environmentálnej fyziky - Prihlásený: igor
Katedra astronómie, fyziky Zeme a meteorológie, FMFI UK, Bratislava,

Effects of corona space charge polarity and liquid phase ion mobility on the shape and velocities of water jets in the spindle j

Pongrác B., Krčma F., Dostál L., Kim H.H., Homola T., Machala Z.
J. Aerosol. Sci. 101, 196-206 (2016)

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Abstrakt:

The paper presents the experimental study of the effect of ions of different mobilities (H+, Cl-, Li+ and OH-) in electrosprayed water solutions under atmospheric pressure conditions in air and in SF6 background gas. Generally, at the atmospheric air conditions, the main difference between water electrospray (ES) in positive and in negative polarities is the shape and elongation direction of the water jets propagating from the charged nozzle. These phenomena can be associated with the movement of ions in water (i.e. the mobility of ions) or with the influence of the corona discharge and its ionic space charge. A comparison of HCl and LiOH water solutions with inversed mobility ratios of cations and anions showed that the mobility of ions inside the liquid is not an important parameter determining this difference between two ES polarities. The combined measurements in atmospheric air and SF6 gas clearly showed that the only important factor determining the different shapes and propagations of the water jets for both polarities is the corona discharge and its ionic space charge.

Citácie:

1.)	Montanero JM and Ganan-Calvo AM: Dripping, jetting and tip streaming, REPORTS ON PROGRESS IN PHYSICS 83 (9) (2020), WoS (2020) -------------
2.)	Lim KH; Kang J, Yi KW: Study on the effects of electrostatic force and spray characteristics in spray cooling of vertical hot strip, J. ELECTROSTATICS 108 (2020), WoS (2020) -------------
3.)	Winardi S; Qomariyah L; (...); Madhania S: The role of electro-sprayed silica-coated zinc oxide nanoparticles to hollow silica nanoparticles for optical devices material and their characterization, COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS 604 (2020), WoS (2020) -------------
4.)	Guo YT; Li SP; Wu ZW; Zhu KW; Han YN; Wang NF: Interaction between electrospray using ionic liquid and simultaneous corona discharge under positive and negative polarity, PHYS. PLAS. 26 (7) 073511 (2019), WoS (2019) -------------
5.)	Borra, J.-P., Review on water electro-sprays and applications of charged drops with focus on the corona-assisted cone-jet mode for High Efficiency Air Filtration by wet electro-scrubbing of aerosols, Journal of Aerosol Science 125, pp. 208-236 (2018) SCI (2018) -------------
6.)	Jaworek, A., Sobczyk, A.T., Krupa, A., Electrospray application to powder production and surface coating, Journal of Aerosol Science 125, pp. 57-92 (2018) SCI (2018) -------------
7.)	Ganan-Calvo, A.M.; Lopez-Herrera, J.M.; Herrada, M.A.; et al. Review on the physics of electrospray: From electrokinetics to the operating conditions of single and coaxial Taylor cone-jets, and AC electrospray, J. Aerosol Sci. 125, 32-56 (2018) SCI (2018) -------------