Pub Date : 2019-06-01DOI: 10.1109/ICDL.2019.8796767
A. Borghesani, F. Aitken
Recently a thermodynamic model has been developed to describe and predict the ion mobility in He. It aims at computing the free volume available for the ionic drift motion through the medium. The radius of the free volume per particle is the hydrodynamic effective radius in the Stokes formula whose validity is extended to the region of large Knudsen number by using the Millikan-Cunningham slip factor correction. We used this model to describe new data of $mathrm{O}_{2}^{-}$ ion mobility in supercritical Ne on several isotherms in a broad density range. The model parameters are adjusted once and for all by fitting the data on the isotherm closest to the critical one and allows the description of the density dependence of the mobility up to temperatures well above room temperature.
{"title":"Thermodynamic Model for the Mobility of Oxygen Anions in Dense Neon Gas","authors":"A. Borghesani, F. Aitken","doi":"10.1109/ICDL.2019.8796767","DOIUrl":"https://doi.org/10.1109/ICDL.2019.8796767","url":null,"abstract":"Recently a thermodynamic model has been developed to describe and predict the ion mobility in He. It aims at computing the free volume available for the ionic drift motion through the medium. The radius of the free volume per particle is the hydrodynamic effective radius in the Stokes formula whose validity is extended to the region of large Knudsen number by using the Millikan-Cunningham slip factor correction. We used this model to describe new data of $mathrm{O}_{2}^{-}$ ion mobility in supercritical Ne on several isotherms in a broad density range. The model parameters are adjusted once and for all by fitting the data on the isotherm closest to the critical one and allows the description of the density dependence of the mobility up to temperatures well above room temperature.","PeriodicalId":102217,"journal":{"name":"2019 IEEE 20th International Conference on Dielectric Liquids (ICDL)","volume":"167 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123537394","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 : 2019-06-01DOI: 10.1109/ICDL.2019.8796737
L. De Maria, F. Scatiggio, M. Pesavento, N. Cennamo, L. Zeni
An optical sensor for transformer oil monitoring is reported. It has been implemented in a plastic optical fiber which acts as optical platform for the sensing element, that is, a Molecular Imprinted Polymer layer, which is a robust, reproducible and low-price receptor for chemical marker in the insulating oil matrix. This optical sensor has been assessed on the detection of a chemical byproduct of transformers’ paper degradation, the furfuraldehyde (2-FAL). The optical sensor performances have been tested on used insulating oil samples spilled from ex-serviced instrument transformers and compared with results of standard methods applied to the same samples. The achieved good agreement emerging by comparative analysis confirms the ability of the optical sensor of detecting low 2-FAL contents directly in mineral oil, without any treatment or dilution of the oil.
{"title":"Toward an optical monitoring of chemical markers in transformers insulating oil","authors":"L. De Maria, F. Scatiggio, M. Pesavento, N. Cennamo, L. Zeni","doi":"10.1109/ICDL.2019.8796737","DOIUrl":"https://doi.org/10.1109/ICDL.2019.8796737","url":null,"abstract":"An optical sensor for transformer oil monitoring is reported. It has been implemented in a plastic optical fiber which acts as optical platform for the sensing element, that is, a Molecular Imprinted Polymer layer, which is a robust, reproducible and low-price receptor for chemical marker in the insulating oil matrix. This optical sensor has been assessed on the detection of a chemical byproduct of transformers’ paper degradation, the furfuraldehyde (2-FAL). The optical sensor performances have been tested on used insulating oil samples spilled from ex-serviced instrument transformers and compared with results of standard methods applied to the same samples. The achieved good agreement emerging by comparative analysis confirms the ability of the optical sensor of detecting low 2-FAL contents directly in mineral oil, without any treatment or dilution of the oil.","PeriodicalId":102217,"journal":{"name":"2019 IEEE 20th International Conference on Dielectric Liquids (ICDL)","volume":"136 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123589688","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 : 2019-06-01DOI: 10.1109/ICDL.2019.8796650
P. Antonini, E. Borsato, G. Carugno, F. Corso, A. Facco, C. Fanin, R. Gobbo, L. L. Torre, F. Montecassiano, M. Pegoraro, M. Poggi, P. Zotto
We investigated the possibility to use a liquid as insulator in a High Voltage generator which is wireless powered by a laser system. The liquid must be transparent to the laser light wavelength, must not attack the control circuits, which are immersed in it, and the support materials. An adequately performing liquid was identified and we characterized the liquid performance in intense electric field, by measuring its breakdown voltage and the leakage current, and checked its optical and thermal behaviour.
{"title":"Studies For The Use Of A Dielectric Liquid As Insulator In A Wireless High Voltage Generator","authors":"P. Antonini, E. Borsato, G. Carugno, F. Corso, A. Facco, C. Fanin, R. Gobbo, L. L. Torre, F. Montecassiano, M. Pegoraro, M. Poggi, P. Zotto","doi":"10.1109/ICDL.2019.8796650","DOIUrl":"https://doi.org/10.1109/ICDL.2019.8796650","url":null,"abstract":"We investigated the possibility to use a liquid as insulator in a High Voltage generator which is wireless powered by a laser system. The liquid must be transparent to the laser light wavelength, must not attack the control circuits, which are immersed in it, and the support materials. An adequately performing liquid was identified and we characterized the liquid performance in intense electric field, by measuring its breakdown voltage and the leakage current, and checked its optical and thermal behaviour.","PeriodicalId":102217,"journal":{"name":"2019 IEEE 20th International Conference on Dielectric Liquids (ICDL)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131844108","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 : 2019-06-01DOI: 10.1109/ICDL.2019.8796786
S. Dessouky, S. Abdelwahab, M. Shaban
Molded case circuit breaker (MCCB) is used to operate and protect electric devices and therefore, the maintenance process is very important and should be made regularly. Maintenance is made via removing the dust by an air blower. This process cleans the MCCB from the outer body only so, the contact points were located at the inner part is dusty. In thus, during the operation, the carbon is formulated on the contact points. Due to the repeat of operations, the contact points become invalid and should to replace by another new one. Maintenance of the (MCCB) was made by a newly proposed maintenance technique. In the proposed maintenance technique, the nanoparticles (NPs) are used and dissolved in the transformer oil. Then the nano oil is prepared. The nano oil leaks into the internal contact points of MCCB and absorbs carbonate. In addition, the nano oil is used to lubricate the internal mechanical parts of MCCB. An electrical test of the MCCB is performed after treatment to ensure the benefits of the new proposed method. The test results of proposed maintenance processes are compared with the traditional method according to the IEC Standards 60947. The results are studied using statistical analysis and explained substantial differences when using nanoparticles. MCCB has raised the efficiency and prolonged life span.
{"title":"New Approach to Molded Case Circuit Breakers Maintenance System Using Nanoparticles","authors":"S. Dessouky, S. Abdelwahab, M. Shaban","doi":"10.1109/ICDL.2019.8796786","DOIUrl":"https://doi.org/10.1109/ICDL.2019.8796786","url":null,"abstract":"Molded case circuit breaker (MCCB) is used to operate and protect electric devices and therefore, the maintenance process is very important and should be made regularly. Maintenance is made via removing the dust by an air blower. This process cleans the MCCB from the outer body only so, the contact points were located at the inner part is dusty. In thus, during the operation, the carbon is formulated on the contact points. Due to the repeat of operations, the contact points become invalid and should to replace by another new one. Maintenance of the (MCCB) was made by a newly proposed maintenance technique. In the proposed maintenance technique, the nanoparticles (NPs) are used and dissolved in the transformer oil. Then the nano oil is prepared. The nano oil leaks into the internal contact points of MCCB and absorbs carbonate. In addition, the nano oil is used to lubricate the internal mechanical parts of MCCB. An electrical test of the MCCB is performed after treatment to ensure the benefits of the new proposed method. The test results of proposed maintenance processes are compared with the traditional method according to the IEC Standards 60947. The results are studied using statistical analysis and explained substantial differences when using nanoparticles. MCCB has raised the efficiency and prolonged life span.","PeriodicalId":102217,"journal":{"name":"2019 IEEE 20th International Conference on Dielectric Liquids (ICDL)","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121470584","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 : 2019-06-01DOI: 10.1109/ICDL.2019.8796665
S. Dujko, I. Simonović, D. Bošnjaković, Z. Petrović, R. White
The Monte Carlo method, initially developed for charged particle swarms in neutral dilute gases, is extended and generalized to investigate the transport processes of electrons in liquid-phase noble gases by accounting for the coherent and other liquid scattering effects. Electron transport coefficients, including the electron mobility, diffusion coefficients and ionization coefficient, are calculated as a function of the reduced electric field in liquid-phase xenon. Calculated transport coefficients are then used as an input in the classical fluid model to investigate the dynamics of negative streamers. Using the language of the contemporary kinetic theory of plasma discharges, in the present work among many important points, we investigate how various representations of inelastic energy losses in inelastic scattering events affect the electron transport and the macroscopic streamer properties.
{"title":"Electron transport and propagation of negative streamers in liquid-phase xenon","authors":"S. Dujko, I. Simonović, D. Bošnjaković, Z. Petrović, R. White","doi":"10.1109/ICDL.2019.8796665","DOIUrl":"https://doi.org/10.1109/ICDL.2019.8796665","url":null,"abstract":"The Monte Carlo method, initially developed for charged particle swarms in neutral dilute gases, is extended and generalized to investigate the transport processes of electrons in liquid-phase noble gases by accounting for the coherent and other liquid scattering effects. Electron transport coefficients, including the electron mobility, diffusion coefficients and ionization coefficient, are calculated as a function of the reduced electric field in liquid-phase xenon. Calculated transport coefficients are then used as an input in the classical fluid model to investigate the dynamics of negative streamers. Using the language of the contemporary kinetic theory of plasma discharges, in the present work among many important points, we investigate how various representations of inelastic energy losses in inelastic scattering events affect the electron transport and the macroscopic streamer properties.","PeriodicalId":102217,"journal":{"name":"2019 IEEE 20th International Conference on Dielectric Liquids (ICDL)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129720557","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 : 2019-06-01DOI: 10.1109/ICDL.2019.8796764
Daosheng Liu, Christopher Garang Deng, Xiangdong Xu, Ye Jing, Xiaofan Li, Romaric Kammeugue Noubissi, Xiaolong Li
Power transformer plays a vital role in maintaining reliable and efficient electricity supply. However, in service is increasing and growing older, much and much attention has been paid on their aging condition and life assessment than ever. The aging and degradation of transformer insulation will determine the life-time of its operation. The intensities of these depend on mechanical, thermal and environmental stresses that act on the insulations. Due to the temperature rise, the lifetime of insulation material will be shortened. The accelerated thermal aging method is often adopted to do some evaluation on the oil-paper insulation materials under different temperature for the thermal lifetime model. According to existing aging test, both insulation paper and mineral oil were aged at the same temperature. In this paper, the thermal aging experiments were implemented on the transformer main insulation model made with modified and unmodified insulation paper. The accelerated thermal aging tests were finished, and the superior electric characteristics of the nano-TiO2 and cellulose composition insulation were validated.
{"title":"Investigation on Heating Aging Mechanism of Cellulose Paper for Oil-Immersed Transformer Main Insulation","authors":"Daosheng Liu, Christopher Garang Deng, Xiangdong Xu, Ye Jing, Xiaofan Li, Romaric Kammeugue Noubissi, Xiaolong Li","doi":"10.1109/ICDL.2019.8796764","DOIUrl":"https://doi.org/10.1109/ICDL.2019.8796764","url":null,"abstract":"Power transformer plays a vital role in maintaining reliable and efficient electricity supply. However, in service is increasing and growing older, much and much attention has been paid on their aging condition and life assessment than ever. The aging and degradation of transformer insulation will determine the life-time of its operation. The intensities of these depend on mechanical, thermal and environmental stresses that act on the insulations. Due to the temperature rise, the lifetime of insulation material will be shortened. The accelerated thermal aging method is often adopted to do some evaluation on the oil-paper insulation materials under different temperature for the thermal lifetime model. According to existing aging test, both insulation paper and mineral oil were aged at the same temperature. In this paper, the thermal aging experiments were implemented on the transformer main insulation model made with modified and unmodified insulation paper. The accelerated thermal aging tests were finished, and the superior electric characteristics of the nano-TiO2 and cellulose composition insulation were validated.","PeriodicalId":102217,"journal":{"name":"2019 IEEE 20th International Conference on Dielectric Liquids (ICDL)","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131656223","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}
The trimethylolpropane esters (TME) based high performance electrical insulating oil was synthesized by esterification of the mixture of C6, C8 and C10 acids blend with trimethylolpropane (TMP). The electrical performance is significantly improved by a purpose-oriented purification process which is structured by washing with ultrapure water and absorption with molecular sieve. The obtained insulating oil shows much reduced viscosity (25.6 mm2/s) and much enhanced AC breakdown voltage (72.6 kV) comparing with the commercial natural ester insulating FR3® (38.9 mm2/s and 65 kV). The high performance of the insulating oil is also manifested by quite low pour point (-45°C) and relative high flash point (240°C). The remarkable oxidation stability of the insulating oil is metered by the oxidation induction temperature (OIT) 203°C which should be attributed to the elimination of C=C double bonds and $beta$-H atoms.
{"title":"Synthesis of Trimethylolpropane Esters as Potential Insulating Oil Base Stocks","authors":"Feipeng Wang, Kaizheng Wang, Jian Li, Qiuhuang Han, Qi Zhao, Kelin Hu","doi":"10.1109/ICDL.2019.8796514","DOIUrl":"https://doi.org/10.1109/ICDL.2019.8796514","url":null,"abstract":"The trimethylolpropane esters (TME) based high performance electrical insulating oil was synthesized by esterification of the mixture of C6, C8 and C10 acids blend with trimethylolpropane (TMP). The electrical performance is significantly improved by a purpose-oriented purification process which is structured by washing with ultrapure water and absorption with molecular sieve. The obtained insulating oil shows much reduced viscosity (25.6 mm2/s) and much enhanced AC breakdown voltage (72.6 kV) comparing with the commercial natural ester insulating FR3® (38.9 mm2/s and 65 kV). The high performance of the insulating oil is also manifested by quite low pour point (-45°C) and relative high flash point (240°C). The remarkable oxidation stability of the insulating oil is metered by the oxidation induction temperature (OIT) 203°C which should be attributed to the elimination of C=C double bonds and $beta$-H atoms.","PeriodicalId":102217,"journal":{"name":"2019 IEEE 20th International Conference on Dielectric Liquids (ICDL)","volume":"59 6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130793746","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 : 2019-06-01DOI: 10.1109/ICDL.2019.8796817
C. Olmo, I. Fernández, A. Santisteban, C. Méndez, F. Ortiz, A. Ortiz
In this paper, an experimental research was conducted to study the effect of the presence of Fe2O3 nanoparticles over cooling and dielectric performance of a natural ester used in power transformers. Different concentration samples of nanofluid have been characterized to find an optimal one, focusing on viscosity, thermal conductivity and dielectric strength. A monitored experimental platform has been used to observe the temperature increases during operation while being cooled. This includes a single-phase distribution transformer, working at three different load levels, C=0.7, C = 1 and C=1.3. Both natural ester base fluid and optimal nanofluid have been used as cooling fluid. At first sight, the nanoparticles seem not to affect neither thermal conductivity nor viscosity at the concentrations used. On the contrary, breakdown voltage of base fluid experiments an enhancement at some of them. The cooling capacity of the nanofluid has also shown an improved behavior.
{"title":"Effect of maghemite nanoparticles on insulation and cooling behaviour of a natural ester used in power transformers","authors":"C. Olmo, I. Fernández, A. Santisteban, C. Méndez, F. Ortiz, A. Ortiz","doi":"10.1109/ICDL.2019.8796817","DOIUrl":"https://doi.org/10.1109/ICDL.2019.8796817","url":null,"abstract":"In this paper, an experimental research was conducted to study the effect of the presence of Fe2O3 nanoparticles over cooling and dielectric performance of a natural ester used in power transformers. Different concentration samples of nanofluid have been characterized to find an optimal one, focusing on viscosity, thermal conductivity and dielectric strength. A monitored experimental platform has been used to observe the temperature increases during operation while being cooled. This includes a single-phase distribution transformer, working at three different load levels, C=0.7, C = 1 and C=1.3. Both natural ester base fluid and optimal nanofluid have been used as cooling fluid. At first sight, the nanoparticles seem not to affect neither thermal conductivity nor viscosity at the concentrations used. On the contrary, breakdown voltage of base fluid experiments an enhancement at some of them. The cooling capacity of the nanofluid has also shown an improved behavior.","PeriodicalId":102217,"journal":{"name":"2019 IEEE 20th International Conference on Dielectric Liquids (ICDL)","volume":"120 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133195640","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 : 2019-06-01DOI: 10.1109/ICDL.2019.8796840
R. Nagarajan, Onkar Kolambkar, RV Talegaonkar
Ester oil filled On Load Tap Changers (OLTC) are introduced in Indian power systems since the last four years. A series of focused experiments done at the authors’ R & D Laboratories prove that ester oil has superior dielectric strength in both uniform and nonuniform fields, considering both pre-breakdown and breakdown processes, when compared with mineral oil. Special test cell and special electrodes were designed to create varying nonuniformities for studying the effect of nonuniformity on the voltage breakdown characteristics. The results indicated satisfactory performance of ester oil filled OLTC for nonuniformities that normally exist in every high voltage product. The current and service duty tests done on many ester oils filled OLTCs indicated satisfactory performance. The paper discusses the experimental study conducted on the natural ester oils and also on the ester oil filled OLTC & concludes that a well-designed OLTC with ester oil provides good performance in the field.
{"title":"Experimental Evaluation and Tests on Ester oil for Non-vacuum Tap Changer","authors":"R. Nagarajan, Onkar Kolambkar, RV Talegaonkar","doi":"10.1109/ICDL.2019.8796840","DOIUrl":"https://doi.org/10.1109/ICDL.2019.8796840","url":null,"abstract":"Ester oil filled On Load Tap Changers (OLTC) are introduced in Indian power systems since the last four years. A series of focused experiments done at the authors’ R & D Laboratories prove that ester oil has superior dielectric strength in both uniform and nonuniform fields, considering both pre-breakdown and breakdown processes, when compared with mineral oil. Special test cell and special electrodes were designed to create varying nonuniformities for studying the effect of nonuniformity on the voltage breakdown characteristics. The results indicated satisfactory performance of ester oil filled OLTC for nonuniformities that normally exist in every high voltage product. The current and service duty tests done on many ester oils filled OLTCs indicated satisfactory performance. The paper discusses the experimental study conducted on the natural ester oils and also on the ester oil filled OLTC & concludes that a well-designed OLTC with ester oil provides good performance in the field.","PeriodicalId":102217,"journal":{"name":"2019 IEEE 20th International Conference on Dielectric Liquids (ICDL)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130835714","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 : 2019-06-01DOI: 10.1109/ICDL.2019.8796837
X. Sidambarompoulé, J. Laurentie, P. Notingher, T. Paillat, P. Leblanc, G. Touchard, A. Toureille, O. Guille
When a liquid is put into contact with a solid, two charge layers of opposite signs appear at the interface. This Electrical Double Layer (EDL) is the result of electrochemical reactions occurring in the region separating the liquid and the solid. A bottleneck in understanding and quantifying the EDL and its behavior is the availability of direct methods allowing to fully measure the EDL charge and distribution. This paper concerns the use of the Thermal Step Method (TSM) as a tool for characterizing the EDL to complete the flow electrification method. Several dielectric liquids (cyclohexane, mineral oil and silicon oil) are subjected to thermal step measurements. The obtained results are analyzed and discussed with respect to literature and to numerical simulations.
{"title":"A Non-destructive Thermal Stimulus Method as a Tool for studying the Electrical Double Layer","authors":"X. Sidambarompoulé, J. Laurentie, P. Notingher, T. Paillat, P. Leblanc, G. Touchard, A. Toureille, O. Guille","doi":"10.1109/ICDL.2019.8796837","DOIUrl":"https://doi.org/10.1109/ICDL.2019.8796837","url":null,"abstract":"When a liquid is put into contact with a solid, two charge layers of opposite signs appear at the interface. This Electrical Double Layer (EDL) is the result of electrochemical reactions occurring in the region separating the liquid and the solid. A bottleneck in understanding and quantifying the EDL and its behavior is the availability of direct methods allowing to fully measure the EDL charge and distribution. This paper concerns the use of the Thermal Step Method (TSM) as a tool for characterizing the EDL to complete the flow electrification method. Several dielectric liquids (cyclohexane, mineral oil and silicon oil) are subjected to thermal step measurements. The obtained results are analyzed and discussed with respect to literature and to numerical simulations.","PeriodicalId":102217,"journal":{"name":"2019 IEEE 20th International Conference on Dielectric Liquids (ICDL)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132279677","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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