Pub Date : 2014-09-08DOI: 10.1109/ICDL.2014.6893079
P. Clermont, T. Paillat, G. Peres, Y. Duval
When the electric charge induced at the electrical double layer of a solid/liquid interface is transported by a liquid flow, a phenomenon known as flow electrification occurs and creates new charge to balance the interface's electrical neutrality. In the context of an aircraft fuel tank being filled, this phenomenon is a generation source of electric charge on the tank wall. This charge is likely to accumulate if it is generated more efficiently at the walls than it relaxes to an electrical ground via an electrical path. In metallic fuel tanks, the charge relaxation is favored over the accumulation. However, the introduction of composite materials with different dielectric multilayers in the construction of future aircraft fuel tanks tends to reduce the relaxation of the charge and amplify the generation. Furthermore, the passage of the fuel through the upstream complex hydraulic and filtering circuits electrically charges the fuel before it enters the tank. This paper consists in analyzing the effects of an upstream charged liquid on the mechanisms of charge generation occurring at a downstream solid/liquid interface. This analysis is based on recent experimental observations for several solid/liquid couples within both cylindrical and rectangular laminar flow conditions.
{"title":"Effect of an upstream charge on flow electrification mechanisms of dielectric liquids","authors":"P. Clermont, T. Paillat, G. Peres, Y. Duval","doi":"10.1109/ICDL.2014.6893079","DOIUrl":"https://doi.org/10.1109/ICDL.2014.6893079","url":null,"abstract":"When the electric charge induced at the electrical double layer of a solid/liquid interface is transported by a liquid flow, a phenomenon known as flow electrification occurs and creates new charge to balance the interface's electrical neutrality. In the context of an aircraft fuel tank being filled, this phenomenon is a generation source of electric charge on the tank wall. This charge is likely to accumulate if it is generated more efficiently at the walls than it relaxes to an electrical ground via an electrical path. In metallic fuel tanks, the charge relaxation is favored over the accumulation. However, the introduction of composite materials with different dielectric multilayers in the construction of future aircraft fuel tanks tends to reduce the relaxation of the charge and amplify the generation. Furthermore, the passage of the fuel through the upstream complex hydraulic and filtering circuits electrically charges the fuel before it enters the tank. This paper consists in analyzing the effects of an upstream charged liquid on the mechanisms of charge generation occurring at a downstream solid/liquid interface. This analysis is based on recent experimental observations for several solid/liquid couples within both cylindrical and rectangular laminar flow conditions.","PeriodicalId":6523,"journal":{"name":"2014 IEEE 18th International Conference on Dielectric Liquids (ICDL)","volume":"44 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2014-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79740939","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2014-09-08DOI: 10.1109/ICDL.2014.6893073
Huifei Jin, P. Morshuis, J. Smit, T. Andritsch
In previous work, the results of AC breakdown tests showed that unmodified silica nanoparticles improve the breakdown strength of mineral oil based nanofluids, especially at a relatively high humidity level of around 25 ppm. It was proposed that, since the hydrophilic surface of unmodified silica nanoparticles can absorb water, this would lead to a reduction of free moisture in the bulk of the oil, which has a strong influence on the breakdown strength. In the present study this proposition is verified, by comparing the breakdown strength of two mineral oil based nanofluids: a reference with unmodified silica nanofluid and a nanofluid with Z-6011 modified silica. The silane coupling agent Z-6011 turns the surface of silica nanoparticles hydrophobic, thus preventing water adsorption.
{"title":"The effect of surface treatment of silica nanoparticles on the breakdown strength of mineral oil","authors":"Huifei Jin, P. Morshuis, J. Smit, T. Andritsch","doi":"10.1109/ICDL.2014.6893073","DOIUrl":"https://doi.org/10.1109/ICDL.2014.6893073","url":null,"abstract":"In previous work, the results of AC breakdown tests showed that unmodified silica nanoparticles improve the breakdown strength of mineral oil based nanofluids, especially at a relatively high humidity level of around 25 ppm. It was proposed that, since the hydrophilic surface of unmodified silica nanoparticles can absorb water, this would lead to a reduction of free moisture in the bulk of the oil, which has a strong influence on the breakdown strength. In the present study this proposition is verified, by comparing the breakdown strength of two mineral oil based nanofluids: a reference with unmodified silica nanofluid and a nanofluid with Z-6011 modified silica. The silane coupling agent Z-6011 turns the surface of silica nanoparticles hydrophobic, thus preventing water adsorption.","PeriodicalId":6523,"journal":{"name":"2014 IEEE 18th International Conference on Dielectric Liquids (ICDL)","volume":"57 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2014-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74471578","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2014-09-08DOI: 10.1109/ICDL.2014.6893162
M. Talhi, S. Flazi, I. Fofana
There is a general agreement that in service conditions the quality of mineral insulating oils gradually deteriorates under the impact of electrical, thermal and chemical stresses. It is also well established that incipient electrical failures such as hot spots and partial discharges are responsible for the deterioration and gassing of oil. This article intends to show how the chemical composition of hydrocarbon blend and the oil born decay products are also contributing factors to the streaming electrification of the oil. The effects of different stresses on the streaming electrification of transformer oil have been investigated using some key testing methods. In this regard, various scenarios were considered. The study was carried on mineral oil samples submitted to electrical discharge according to ASTM D6180 or local overheating and a combination of both stresses. This paper provides experimental evidence that the formation in service conditions of undetected oil-born decay products is a contributing factor to the electrostatic charging tendency of oil.
{"title":"Impact of local overheating and electrical discharge on the streaming electrification of transformer oil","authors":"M. Talhi, S. Flazi, I. Fofana","doi":"10.1109/ICDL.2014.6893162","DOIUrl":"https://doi.org/10.1109/ICDL.2014.6893162","url":null,"abstract":"There is a general agreement that in service conditions the quality of mineral insulating oils gradually deteriorates under the impact of electrical, thermal and chemical stresses. It is also well established that incipient electrical failures such as hot spots and partial discharges are responsible for the deterioration and gassing of oil. This article intends to show how the chemical composition of hydrocarbon blend and the oil born decay products are also contributing factors to the streaming electrification of the oil. The effects of different stresses on the streaming electrification of transformer oil have been investigated using some key testing methods. In this regard, various scenarios were considered. The study was carried on mineral oil samples submitted to electrical discharge according to ASTM D6180 or local overheating and a combination of both stresses. This paper provides experimental evidence that the formation in service conditions of undetected oil-born decay products is a contributing factor to the electrostatic charging tendency of oil.","PeriodicalId":6523,"journal":{"name":"2014 IEEE 18th International Conference on Dielectric Liquids (ICDL)","volume":"39 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2014-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80183893","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2014-09-08DOI: 10.1109/ICDL.2014.6893174
R. H. Fattepur, N. Ayachit
The dielectric relaxation studies of liquids and liquid mixtures is a tool to understand intermolecular interaction along with molecular dynamics. Although m-Fluoroaniline (MFA) has higher dipole moment than methanol (MT) has dielectric constant less than that of methanol. H-bonds appear in methanol but not in m-Fluoroaniline. The dielectric behavior, dielectric relaxation mechanism of these pure liquids and their binary mixtures helps to understand nature of interactions between dipoles and effects of molecular bonding. Higher dielectric constant and relaxation time of of pure methanol compared to those of m-Fluoroaniline are due to presence of H-bonding and parallel alignment of electric dipoles. In pure m-Fluoroaniline spatial correlation between molecules appear only through dipole-dipole interactions. To study these aspects the Time domain Reflectometry technique has been used to obtain complex dielectric spectra of binary mixture of MT and MFA in the frequency range of 10 MHz to 10 GHz at various temperatures the results are presented.
{"title":"Dielectric relaxation study of m-Fluoroaniline and methanol mixture using time domain reflectometry","authors":"R. H. Fattepur, N. Ayachit","doi":"10.1109/ICDL.2014.6893174","DOIUrl":"https://doi.org/10.1109/ICDL.2014.6893174","url":null,"abstract":"The dielectric relaxation studies of liquids and liquid mixtures is a tool to understand intermolecular interaction along with molecular dynamics. Although m-Fluoroaniline (MFA) has higher dipole moment than methanol (MT) has dielectric constant less than that of methanol. H-bonds appear in methanol but not in m-Fluoroaniline. The dielectric behavior, dielectric relaxation mechanism of these pure liquids and their binary mixtures helps to understand nature of interactions between dipoles and effects of molecular bonding. Higher dielectric constant and relaxation time of of pure methanol compared to those of m-Fluoroaniline are due to presence of H-bonding and parallel alignment of electric dipoles. In pure m-Fluoroaniline spatial correlation between molecules appear only through dipole-dipole interactions. To study these aspects the Time domain Reflectometry technique has been used to obtain complex dielectric spectra of binary mixture of MT and MFA in the frequency range of 10 MHz to 10 GHz at various temperatures the results are presented.","PeriodicalId":6523,"journal":{"name":"2014 IEEE 18th International Conference on Dielectric Liquids (ICDL)","volume":"3 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2014-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81714979","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2014-09-08DOI: 10.1109/ICDL.2014.6893081
M. Onoda, K. Yoshino
Poly(2-methoxy, 5-(4-decyloxy-biphenyl-4'-(1, 10-dioxydecane))-p-phenylenevinylene), MDBD-PPV, wih a long side chain containing alkoxybiphenyl mesogenic unit has been synthesized and its electrical and optical properties have been investigated. This polymer showed a microscopic texture typical to the liquid-crystalline phase and a sharp X-ray diffraction peak due to the smectic layer structure. The band gap of MDBD-PPV in the liquid-crystalline phase has been estimated to be about 2.3 eV. An electroluminescent (EL) device has been fabricated using this liquid-crystalline polymer. MDBD-PPV, as an emissive layer and the polarity effect has been observed in the emission spectra of this EL device.
{"title":"Fundamental properties of ferroelectric liquid-crystalline conductive polymers","authors":"M. Onoda, K. Yoshino","doi":"10.1109/ICDL.2014.6893081","DOIUrl":"https://doi.org/10.1109/ICDL.2014.6893081","url":null,"abstract":"Poly(2-methoxy, 5-(4-decyloxy-biphenyl-4'-(1, 10-dioxydecane))-p-phenylenevinylene), MDBD-PPV, wih a long side chain containing alkoxybiphenyl mesogenic unit has been synthesized and its electrical and optical properties have been investigated. This polymer showed a microscopic texture typical to the liquid-crystalline phase and a sharp X-ray diffraction peak due to the smectic layer structure. The band gap of MDBD-PPV in the liquid-crystalline phase has been estimated to be about 2.3 eV. An electroluminescent (EL) device has been fabricated using this liquid-crystalline polymer. MDBD-PPV, as an emissive layer and the polarity effect has been observed in the emission spectra of this EL device.","PeriodicalId":6523,"journal":{"name":"2014 IEEE 18th International Conference on Dielectric Liquids (ICDL)","volume":"33 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2014-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84606161","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2014-09-08DOI: 10.1109/ICDL.2014.6893151
Q. Liu, Z. Wang, O. Lesaint
Both step impulse and lightning impulse voltages were widely used to study streamer in liquid phenomena. This paper investigates the effects of voltage waveforms including step impulse (0.4/1400 μs) and lightning impulse (1.2/50 μs) on streamer propagation and breakdown under both positive and negative polarities. The results indicate that lightning impulse quenches the streamer propagation and leads to higher breakdown voltage compared to step impulse. However the acceleration voltages at 5 cm gap distance are the same between lightning impulse and step impulse. The observation is valid for both positive and negative polarities.
{"title":"Comparison of streamer propagation in mineral oils under lightning and step impulse voltages","authors":"Q. Liu, Z. Wang, O. Lesaint","doi":"10.1109/ICDL.2014.6893151","DOIUrl":"https://doi.org/10.1109/ICDL.2014.6893151","url":null,"abstract":"Both step impulse and lightning impulse voltages were widely used to study streamer in liquid phenomena. This paper investigates the effects of voltage waveforms including step impulse (0.4/1400 μs) and lightning impulse (1.2/50 μs) on streamer propagation and breakdown under both positive and negative polarities. The results indicate that lightning impulse quenches the streamer propagation and leads to higher breakdown voltage compared to step impulse. However the acceleration voltages at 5 cm gap distance are the same between lightning impulse and step impulse. The observation is valid for both positive and negative polarities.","PeriodicalId":6523,"journal":{"name":"2014 IEEE 18th International Conference on Dielectric Liquids (ICDL)","volume":"42 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2014-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78104357","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2014-09-08DOI: 10.1109/ICDL.2014.6893147
C. Louste, Z. Yan, P. Traoré, M. Daaboul
Dielectric barrier injection (DBI) devices were shown to be reliable in flow control applications. Particle Image Velocimetry (PIV) techniques could be adapted in order to obtain velocity fields of the flow generated by DBI devices. In this work, the momentum integration method is applied on velocity fields obtained by PIV to estimate the electric force generated by a DBI actuator. A control volume surrounding the produced flow is carefully selected. The electric force is then computed. The influence of the electric signal frequency on the EHD force is studied. Finally, a time-resolved analysis is carried out to study the temporal behavior of the electric force during a complete electric signal cycle.
{"title":"Experimental estimation of the electric force induced by dielectric barrier injection","authors":"C. Louste, Z. Yan, P. Traoré, M. Daaboul","doi":"10.1109/ICDL.2014.6893147","DOIUrl":"https://doi.org/10.1109/ICDL.2014.6893147","url":null,"abstract":"Dielectric barrier injection (DBI) devices were shown to be reliable in flow control applications. Particle Image Velocimetry (PIV) techniques could be adapted in order to obtain velocity fields of the flow generated by DBI devices. In this work, the momentum integration method is applied on velocity fields obtained by PIV to estimate the electric force generated by a DBI actuator. A control volume surrounding the produced flow is carefully selected. The electric force is then computed. The influence of the electric signal frequency on the EHD force is studied. Finally, a time-resolved analysis is carried out to study the temporal behavior of the electric force during a complete electric signal cycle.","PeriodicalId":6523,"journal":{"name":"2014 IEEE 18th International Conference on Dielectric Liquids (ICDL)","volume":"30 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2014-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77992245","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2014-09-08DOI: 10.1109/ICDL.2014.6893123
K. Rapp, J. Luksich
Aramid insulation and other transformer construction materials were aged in mineral oil, high molecular weight hydrocarbon, natural and synthetic esters, and silicone dielectric liquids. The initial aging sequence used aging temperatures of 130, 150 and 170 °C for 1000, 2000 and 5000 hours in all liquids but natural ester. A subsequent sequence used temperatures of 210, 230 and 250 °C for 500, 1000, 2000 and 5000 hours using all liquids but mineral oil. We find that the decrease in aramid tensile strength is greatest in synthetic ester and least in silicone. The aramid dielectric strength has the greatest decrease in synthetic ester and least in high molecular weight hydrocarbon and silicone. Synthetic and natural ester liquids degrade significantly at 210 °C and higher. The dielectric strength of silicone decreases significantly at 210 °C, as does its flash point at 230 °C. The synthetic ester acids were found to be highly corrosive to core steel.
{"title":"Accelerated aging of aramid insulation in various dielectric liquids","authors":"K. Rapp, J. Luksich","doi":"10.1109/ICDL.2014.6893123","DOIUrl":"https://doi.org/10.1109/ICDL.2014.6893123","url":null,"abstract":"Aramid insulation and other transformer construction materials were aged in mineral oil, high molecular weight hydrocarbon, natural and synthetic esters, and silicone dielectric liquids. The initial aging sequence used aging temperatures of 130, 150 and 170 °C for 1000, 2000 and 5000 hours in all liquids but natural ester. A subsequent sequence used temperatures of 210, 230 and 250 °C for 500, 1000, 2000 and 5000 hours using all liquids but mineral oil. We find that the decrease in aramid tensile strength is greatest in synthetic ester and least in silicone. The aramid dielectric strength has the greatest decrease in synthetic ester and least in high molecular weight hydrocarbon and silicone. Synthetic and natural ester liquids degrade significantly at 210 °C and higher. The dielectric strength of silicone decreases significantly at 210 °C, as does its flash point at 230 °C. The synthetic ester acids were found to be highly corrosive to core steel.","PeriodicalId":6523,"journal":{"name":"2014 IEEE 18th International Conference on Dielectric Liquids (ICDL)","volume":"452 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2014-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78007599","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2014-09-08DOI: 10.1109/ICDL.2014.6893091
T. Grav, L. Lundgaard
Currents and space charge phenomena in 8 different dielectric liquids have been investigated for an ac stressed needle plane gap. Applied frequencies ranged from 0.1 Hz to 100 Hz. A high resolution analogue-digital converter and an active suppression of capacitive currents were used to extract the small conductive currents. Tip radii and voltages were varied. The currents varied non-linearly with voltage. At low frequencies the perfluorpolyeter and mineral oils had almost symmetrical current in both polarities, while cyclohexane, white oil and esters had asymmetrical current with lower peak current for positive polarity. Above a certain instantaneous voltage level - within the power cycle - the currents increased with the voltage squared, fitting a space charge limited current model. Clear indications of heterocharge space charges were revealed by varying tip radii and frequencies. The heterocharge will result in an increase of the electric field. The results show that at higher voltages a purely resistive model for the liquids becomes invalid. It is also evident that the presence of space charges will influence partial discharge behavior.
{"title":"Currents in AC stressed liquid insulated needle plane gap","authors":"T. Grav, L. Lundgaard","doi":"10.1109/ICDL.2014.6893091","DOIUrl":"https://doi.org/10.1109/ICDL.2014.6893091","url":null,"abstract":"Currents and space charge phenomena in 8 different dielectric liquids have been investigated for an ac stressed needle plane gap. Applied frequencies ranged from 0.1 Hz to 100 Hz. A high resolution analogue-digital converter and an active suppression of capacitive currents were used to extract the small conductive currents. Tip radii and voltages were varied. The currents varied non-linearly with voltage. At low frequencies the perfluorpolyeter and mineral oils had almost symmetrical current in both polarities, while cyclohexane, white oil and esters had asymmetrical current with lower peak current for positive polarity. Above a certain instantaneous voltage level - within the power cycle - the currents increased with the voltage squared, fitting a space charge limited current model. Clear indications of heterocharge space charges were revealed by varying tip radii and frequencies. The heterocharge will result in an increase of the electric field. The results show that at higher voltages a purely resistive model for the liquids becomes invalid. It is also evident that the presence of space charges will influence partial discharge behavior.","PeriodicalId":6523,"journal":{"name":"2014 IEEE 18th International Conference on Dielectric Liquids (ICDL)","volume":"17 4 1","pages":"1-5"},"PeriodicalIF":0.0,"publicationDate":"2014-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91195226","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2014-09-08DOI: 10.1109/ICDL.2014.6893141
N. Davari, C. Daub, P. Åstrand, M. Unge
The linear response of the local electric field to an external electric field is calculated by a force-field model for frequencies through the first molecular excitation energy. Both static and frequency-dependent external fields are applied and results for the local field are presented for liquid benzene as a model system by combining molecular dynamics simulations and the local field model. It is found that the largest local field response is around 8 at the absorption frequency but it depends significantly on the molecular configuration of the liquid.
{"title":"Atomistic simulations of the local electric field in dielectric liquids","authors":"N. Davari, C. Daub, P. Åstrand, M. Unge","doi":"10.1109/ICDL.2014.6893141","DOIUrl":"https://doi.org/10.1109/ICDL.2014.6893141","url":null,"abstract":"The linear response of the local electric field to an external electric field is calculated by a force-field model for frequencies through the first molecular excitation energy. Both static and frequency-dependent external fields are applied and results for the local field are presented for liquid benzene as a model system by combining molecular dynamics simulations and the local field model. It is found that the largest local field response is around 8 at the absorption frequency but it depends significantly on the molecular configuration of the liquid.","PeriodicalId":6523,"journal":{"name":"2014 IEEE 18th International Conference on Dielectric Liquids (ICDL)","volume":"14 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2014-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83945838","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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