Proceedings of 2002 IEEE 14th International Conference on Dielectric Liquids. ICDL 2002 (Cat. No.02CH37319)

Công bố khoa học tiêu biểu

* Dữ liệu chỉ mang tính chất tham khảo

Sắp xếp:  
Modeling of electrohydrodynamic flows and micro-bubbles generation in dielectric liquid by lattice Boltzmann equation method
Proceedings of 2002 IEEE 14th International Conference on Dielectric Liquids. ICDL 2002 (Cat. No.02CH37319) - - Trang 45-48
D.A. Medvedev, A.L. Kupershtokh
The Lattice Boltzmann Equation (LBE) method was used to simulate a liquid flow with space electric charge. New approach to describe the charge transfer due to convective charge transport was proposed. Simulations of two-dimensional electrohydrodynamic flow showed pulsations caused by the injection of charged blobs and by the hydrodynamic instability of charged jet. Generation and growth of micro-b...... hiện toàn bộ
#Electrohydrodynamics #Dielectric liquids #Lattice Boltzmann methods #Equations #Fluid flow #Space charge #Charge transfer #Hydrodynamics #Electrodes #Voltage
Measurement equipment for investigation of the influence of viscosity of dielectric working fluids on spark erosion
Proceedings of 2002 IEEE 14th International Conference on Dielectric Liquids. ICDL 2002 (Cat. No.02CH37319) - - Trang 301-304
H.-P. Schulze, G. Wollenberg, M. Lauter, M. Storr, W. Rehbein
In the paper functional goals of the measurement equipment for the investigation of electrical discharges in dielectric working fluids are discussed. Electrical discharges take place at electrode distances smaller than 200 /spl mu/m. As an example the influence of the viscosity on the ignition behaviour and on typical phases of the spark erosion are analyzed.
#Dielectric measurements #Viscosity #Pollution measurement #Pulse measurements #Electric variables measurement #Electrodes #Current measurement #Sparks #Velocity measurement #Pressure measurement
Pico-second time domain reflectometry response of a microstripline embedded in various liquids
Proceedings of 2002 IEEE 14th International Conference on Dielectric Liquids. ICDL 2002 (Cat. No.02CH37319) - - Trang 329-332
B.R. Sharma, S.C. Mehrotra
A microstripline having 50 ohms characteristic impedance has been delineated on PCB type FR-4 board material, by using standard three layer dry film lamination and chemical photo-etching technology. The dielectric constant and dissipation factor for FR-4 substrate material is 4.6 and 0.018 at 1 MHz respectively. The fringing fields arising from free end of a microstripline have been employed to ob...... hiện toàn bộ
#Reflectometry #Microstrip #Liquids #Dielectric materials #Chemical technology #Impedance #Optical films #Lamination #Dielectric constant #Dielectric substrates
Study of dielectric relaxation in 2,4-dimethyl substituted pyridine using microwave cavity spectrometer and time domain reflectometer
Proceedings of 2002 IEEE 14th International Conference on Dielectric Liquids. ICDL 2002 (Cat. No.02CH37319) - - Trang 354-357
G.K. Johri, R. Sharma, M. Johri, S. Johri, S. Saxena
We have used microwave cavity spectrometer and time domain reflectometer for the measurement of permittivity and dielectric loss at different temperatures in 2,4-dimethyl substituted pyridine. The observed data of the width of resonance profile and the shift in the resonance frequency have been analyzed by using Slater perturbation equations useful for cavity spectrometer. The parameters measured ...... hiện toàn bộ
#Electrochemical impedance spectroscopy #Dielectric loss measurement #Dielectric losses #Dielectric measurements #Permittivity measurement #Loss measurement #Time measurement #Temperature #Resonance #Microwave measurements
Application of neural networks paradigms in the diagnosis and thermal ageing prediction of transformer oil
Proceedings of 2002 IEEE 14th International Conference on Dielectric Liquids. ICDL 2002 (Cat. No.02CH37319) - - Trang 258-261
L. Mokhnache, A. Boubakeur, N. Nait Said
In this paper we present the application of some artificial neural networks algorithms to the diagnosis and thermal ageing prediction of transformer oil. The simulation had been validated by experimental results.
#Neural networks #Intelligent networks #Aging #Oil insulation #Power transformer insulation #Petroleum #Laboratories #Costs #Dielectrics and electrical insulation #Thermal engineering
Field evaporation of ions from glycerol/water solutions with use of polymer track membranes
Proceedings of 2002 IEEE 14th International Conference on Dielectric Liquids. ICDL 2002 (Cat. No.02CH37319) - - Trang 262-265
A. Balakin, E. Balakina, L. Novikova, V. Talrose
The main principles of the field extraction of ions from water/glycerol solutions by use of a of poly(ethylene terephtalate) track membrane technique are considered. Application of the technique provides a direct transfer of ions dissolved in the liquid dielectric into gas phase. A possibility of stabilization of the liquid in the submicron channels of the track membrane in an electric field of hi...... hiện toàn bộ
#Polymers #Biomembranes #Solvents #Dielectric liquids #Ion sources #Amino acids #Distributed power generation #Electrohydrodynamics #Electrodes #Chemicals
Experimental investigation of complex ion formation in solution of transformer oil with iodine
Proceedings of 2002 IEEE 14th International Conference on Dielectric Liquids. ICDL 2002 (Cat. No.02CH37319) - - Trang 21-24
A.I. Zhakin
The processes of ion-complex formation (ionic pairs, triplets, dipole-dipole and ion-dipole clusters) and associated conductivity in liquid dielectrics are considered. Experimental method and results on ionization process in solution of transformer ion with iodine are discussed.
#Oil insulation #Conductivity #Dielectric liquids #Ionization #Electrons #Spontaneous emission #Purification #Equations #Size measurement #Protons
Study of orientation of liquid crystal molecules at interface by shear horizontal wave
Proceedings of 2002 IEEE 14th International Conference on Dielectric Liquids. ICDL 2002 (Cat. No.02CH37319) - - Trang 386-389
K. Yoshino, M. Inoue, H. Moritake, K. Toda
The director-orientation of a liquid crystal near an interface between a glass plate and a liquid-crystal layer is studied under propagation of a shear horizontal (SH) acoustic wave. An acoustic phase-delay of a SH wave device with various liquid-crystal director orientations, which is affected by the liquid-crystal director orientation, is measured. The fractional velocity change of the SH wave i...... hiện toàn bộ
#Liquid crystals #Acoustic waves #Liquid crystal devices #Glass #Acoustic propagation #Acoustic devices #Acoustic measurements #Phase measurement #Numerical analysis #Voltage
Effect of co-field flow velocity, temperature and dissolved gases on the direct breakdown voltage of transformer oil using point-to-plane electrodes
Proceedings of 2002 IEEE 14th International Conference on Dielectric Liquids. ICDL 2002 (Cat. No.02CH37319) - - Trang 95-98
I.Y. Megahed, M.A. Abdallah, A.A. Zaky
This paper presents results on the effect of enforced co-field oil flow velocity and of temperature on the breakdown voltage of transformer oil using point-to-plane electrodes. Tests were carried out on degassed oil and oxygen-saturated oil for negative and positive point polarities over the temperature range 20/spl deg/C - 85/spl deg/C and flow velocities from 0.0 to 170 cm/s and for two gap leng...... hiện toàn bộ
#Gases #Petroleum #Electrodes #Breakdown voltage #Temperature distribution #Temperature dependence #Oil insulation #Needles #Testing #Lubricating oils
Evolution of current pulses in liquid argon induced by a sharp point cathode
Proceedings of 2002 IEEE 14th International Conference on Dielectric Liquids. ICDL 2002 (Cat. No.02CH37319) - - Trang 59-62
P. Atten, N. Bonifaci, A. Denat
The Trichel pulses induced by a sharp point cathode in liquid argon are discussed. A crude analysis of the phenomena shows that the apparent charge carrier mobility is proportional to the current pulse duration in a given duration range. A very rough estimate of this time qualitatively accounts for its observed variations with the applied voltage in a liquid sample highly purified through the inje...... hiện toàn bộ
#Argon #Cathodes #Electrodes #Electrons #Voltage #Corona #Charge carriers #Pulse shaping methods #Geometry #Gases
Tổng số: 102   
  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 10