Pin–Plate Electrode System for Emulsification of a Higher Conductivity Leaky Dielectric Liquid into a Low Conductivity Medium

2014 ◽  
Vol 53 (34) ◽  
pp. 13488-13496 ◽  
Author(s):  
Sameer Mhatre ◽  
Rochish Thaokar

2017 ◽  
Vol 829 ◽  
pp. 127-152 ◽  
Author(s):  
Debasish Das ◽  
David Saintillan

Weakly conducting dielectric liquid drops suspended in another dielectric liquid and subject to an applied uniform electric field exhibit a wide range of dynamical behaviours contingent on field strength and material properties. These phenomena are best described by the Melcher–Taylor leaky dielectric model, which hypothesizes charge accumulation on the drop–fluid interface and prescribes a balance between charge relaxation, the jump in ohmic currents from the bulk and charge convection by the interfacial fluid flow. Most previous numerical simulations based on this model have either neglected interfacial charge convection or restricted themselves to axisymmetric drops. In this work, we develop a three-dimensional boundary element method for the complete leaky dielectric model to systematically study the deformation and dynamics of liquid drops in electric fields. The inclusion of charge convection in our simulations permits us to investigate drops in the Quincke regime, in which experiments have demonstrated a symmetry-breaking bifurcation leading to steady electrorotation. Our simulation results show excellent agreement with existing experimental data and small-deformation theories.



1998 ◽  
Vol 544 ◽  
Author(s):  
Shinzo Morita ◽  
Shinji Ogawa ◽  
Mikinori Suzuki ◽  
Md. Abul Kashem

AbstractPlasma graft polymerized styrene was formed by a reactor with a parallel plate electrode system on a pulsed plasma polymerized styrene film in a monomer vapor, where the pulsed plasma polymerization was performed by a low frequency 100%pulse modulation of 13.56 MHz power source in styrene vapor. The pulse duration was varied in the range of 0.01∼1 sec and ON time/duty cycle ratio was 1/10 and 1/20. The processes were monitored by a quartz crystal microbalance. The initial stage of plasma polymerization and grafting are discussed in this paper. Also sub 100 nm lines and spaces pattern on the resist delineated by an electron-beam pattering machine was developed by hexane.



2002 ◽  
Vol 55 (3-4) ◽  
pp. 343-350 ◽  
Author(s):  
Seiji Kanazawa ◽  
Takeshi Ito ◽  
Yasuyuki Shuto ◽  
Toshikazu Ohkubo ◽  
Yukiharu Nomoto ◽  
...  




2021 ◽  
Vol 33 (9) ◽  
pp. 092114
Author(s):  
M. Rubio ◽  
A. Ponce-Torres ◽  
M. A. Herrada ◽  
A. M. Gañán-Calvo ◽  
J. M. Montanero


2011 ◽  
Vol 84 (3) ◽  
Author(s):  
Evgeny Demekhin ◽  
Sergey Polyanskikh ◽  
Antonio Ramos


2019 ◽  
Vol 2019 ◽  
pp. 1-11 ◽  
Author(s):  
Yaming Zhang ◽  
Changjiang Ding ◽  
Jiabao Ni ◽  
Zhiqing Song ◽  
Rui Zhao

In order to investigate the thawing time and water-holding capacity under high-voltage electric field (HVEF), we studied the thawing experiments of frozen beef in a multiple needles-to-plate electrode system. The electric field, thawing characteristics, and quality parameters during the thawing process were measured. The results showed that compared with the control, the thawing time of beef under HVEF was significantly shortened, the thawing rate increased significantly, the drip loss decreased, and the centrifugal loss increased during the thawing process. By the response surface analysis and single-factor analysis of variance, the best thawing conditions for each thawing parameter were determined. It provides a theoretical basis and practical guidance for understanding the characteristic parameters of the high-voltage electric field thawing technology.



2018 ◽  
Vol 78 (7) ◽  
pp. 1427-1437
Author(s):  
Liang Hong ◽  
Qiu Yang ◽  
Zhao Liying ◽  
Chen Yingyan ◽  
Wang Bing

Abstract Research on three-dimensional electrode system mainly focuses on the material of plate electrode and catalytic activity, and minimal attention is provided to particle electrode. Pyrolusite was prepared as a novel particle electrode with high active chlorine (ACl) yield. The particle electrode was characterised by scanning electrode microscopy (SEM), X-ray diffraction (XRD), X-ray fluorescence (XRF) and electrochemical properties. Results show that the intended pyrolusite particle electrode was prepared successfully. These pyrolusite particle electrodes were applied to degrade sulphonated phenolic resin in chlorine-containing wastewater and displayed an excellent catalytic activity. A total of 68.76 mg/L ACl was produced, and the CODCr removal rate was 49.55%. These results indicated that pyrolusite particle electrode is much more effective than the reference material, that is, granular activated carbon. Furthermore, the product of electrolytic process was characterised by gas chromatography-mass spectrometry (GC-MS) and ultraviolet visible spectrometry (UV-vis). The enhanced mechanism was proposed that the high degradation efficiency could be ascribed to the increase of ACl.



2006 ◽  
Author(s):  
P. N. Kaloni ◽  
J. X. Lou

The linear convective stability analysis of a poorly conducting liquid with inclined temperature gradient and under a vertical d. c. electric field is investigated. The liquid is placed between a parallel plate electrode system with the upper electrode heated. The eigenvalue problem is solved by the Chebyshev Tau-QZ method. Consideration is also given to the case when there is no horizontal flow and some interesting results are obtained. For inclined temperature gradient case, it is found that the onset of convection is governed by six parameters RV, RH, Re, Pr, Pe and Se. The effect of varying Re upon critical RV and RH is discussed and some considerations to the occurrence of transverse or longitudinal mode is pointed out.



Sign in / Sign up

Export Citation Format

Share Document