Charging kinetics of spherical dielectric particles in a unipolar corona field

Effect of Dielectric Barrier Discharge on the Sorption Properties of Disperse Porous Materials in CO2−Silicagel and SF6−Silicagel Systems

“…However, the concentration of charged particles in the discharge channel will rapidly increase by the DBD acting on the adsorbent. 21,22 In this case, it must be assumed to be the distance between the ion and its image into account, instead of the distance R 12 . As seen in eq 7, the adsorption energy is a function of the distance between the adsorbent surface and the atoms of the molecules to be adsorbed.…”

“…Even if the concentration of charged particles is less than the concentration of neutral particles, this assumption is still valid. However, the concentration of charged particles in the discharge channel will rapidly increase by the DBD acting on the adsorbent. , In this case, it must be assumed to be the distance between the ion and its image into account, instead of the distance R 12 . As seen in eq 7, the adsorption energy is a function of the distance between the adsorbent surface and the atoms of the molecules to be adsorbed. , Therefore, to analyze the formation of ion−molecular complexes on the adsorbent surface, the probable distance between the ion approaching to the adsorbent surface from discharge channel and the image of the ion must be determined.…”

Combined kinetic charging of particles on the precipitating electrode in a corona field

“…where µ is the mobility of the ions, ρ the volume charge density of the ions in the corona field and ε 0 = 8.85 × 10 −12 F m −1 is the electrical constant. In equation (1a), Q m1 is the limiting value of the charge on the particle in the corona field, and can be expressed as [16,19,20] In this equation, ε is the dielectric permittivity of the particle, E 0 the electric field intensity where the particle exists and r p is the radius of the spherical particle. In equation ( 1), I 0 is the leakage current and, physically, it specifies the charge loss on the particle during time dt; it can be expressed as…”

“…Currently, the most widely used method in charging particles in EIT is the charging of the particles in a volume charged electrical field or charging by high voltage electrode contact [15][16][17][18][19][20]. As is well known, charging of the particles in a volume charged electrical field consists of these two 3 Author to whom any correspondence should be addressed.…”

Developments in Unipolar Charging of Airborne Particles: Theories, Simulations and Measurements

“…By allowing for a non-uniform distribution of free charges, the author obtained an expression for the electric current on the particle surface and results showed that a surface charge non-uniformity would lead to a rotation of a particle for a typical field charging case. Similarly, Alisoy et al (2005) investigated the charging of spherical dielectric particles in an electric field, and demonstrated that a stationary particle acquired less charge than a rotating particle. Koseoglu and Alisoy (2011) extended the theory into a stationary and rotational cylindrical dielectric particle in unipolar corona field.…”