J 2016

Effects of corona space charge polarity and liquid phase ion mobility on the shape and velocities of water jets in the spindle jet and precession modes of water electro-spray

PONGRÁC, Branislav, František KRČMA, Lukáš DOSTÁL, Hyun-Ha KIM, Tomáš HOMOLA et. al.

Basic information

Original name

Effects of corona space charge polarity and liquid phase ion mobility on the shape and velocities of water jets in the spindle jet and precession modes of water electro-spray

Authors

PONGRÁC, Branislav (703 Slovakia, guarantor), František KRČMA (203 Czech Republic), Lukáš DOSTÁL (203 Czech Republic), Hyun-Ha KIM (410 Republic of Korea), Tomáš HOMOLA (703 Slovakia, belonging to the institution) and Zdenko MACHALA (703 Slovakia)

Edition

Journal of Aerosol Science, 2016, 0021-8502

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10305 Fluids and plasma physics

Country of publisher

United Kingdom of Great Britain and Northern Ireland

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

Impact factor

Impact factor: 2.042

RIV identification code

RIV/00216224:14310/16:00090688

Organization unit

Faculty of Science

DOI

UT WoS

000384955100016

Keywords in English

Electrospray;Corona discharge;Polarity effect;Ion mobility;High-speed camera

Tags

Změněno: 5/4/2017 10:44, Ing. Andrea Mikešková

Abstract

V originále

The paper presents the experimental study of the effect of ions of different mobilities 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.

Links

ED2.1.00/03.0086, research and development project
Name: Regionální VaV centrum pro nízkonákladové plazmové a nanotechnologické povrchové úpravy
LO1411, research and development project
Name: Rozvoj centra pro nízkonákladové plazmové a nanotechnologické povrchové úpravy (Acronym: CEPLANT plus)
Investor: Ministry of Education, Youth and Sports of the CR