Zobrazeno 1 - 10
of 16
pro vyhledávání: '"Cédric Lesaint"'
Publikováno v:
2021 IEEE Electrical Insulation Conference (EIC).
Scanning electron Microscopy (SEM) coupled with energy dispersive X-ray analysis (EDX) were used for qualitative and quantitative trace element analysis of inception sites of vented water-trees in a modern HV XLPE cable aged in salt water. The aim of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9b296aabda1976c7f5c475f78d9beb5e
https://doi.org/10.1109/eic49891.2021.9612351
https://doi.org/10.1109/eic49891.2021.9612351
Publikováno v:
IEEE transactions on dielectrics and electrical insulation
The main objective of this study is to identify reliable insulation materials and systems for novel AC and DC subsea power connectors for oil and gas exploitation. A combined solid-liquid insulation system might be radically altered if the materials
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6d694138d64bdb8f574b5c2f8e87498c
http://hdl.handle.net/11250/2608885
http://hdl.handle.net/11250/2608885
Autor:
Pascal Mavrommatis, Nenad Stjepanovic, Lars E. Lundgaard, Cédric Lesaint, D. Linhjell, Knut Brede Liland, Marit-Helen Glomm Ese
Publikováno v:
2017 IEEE 19th International Conference on Dielectric Liquids (ICDL).
For transformers in service, aging markers from cellulose in oil such as furans, water, methanol and acids are measured for diagnostic purposes. The content of these indicators, measured in oil, may therefore vary with load, temperature, solid and li
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::26269a7f12616a81eb3d0eee45b3f4ab
https://doi.org/10.1109/icdl.2017.8124699
https://doi.org/10.1109/icdl.2017.8124699
Publikováno v:
IEEE Transactions on Dielectrics and Electrical Insulation. 21:662-665
The interaction between low molecular weight acids dissolved in mineral oil with cellulose has been studied. The formation of esters as a function of temperature has been demonstrated using attenuated total reflection infrared (IR) spectroscopy. High
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::60f73b34743eb6c2255584c866b653d1
https://doi.org/10.1109/tdei.2013.004238
https://doi.org/10.1109/tdei.2013.004238
Publikováno v:
IEEE transactions on dielectrics and electrical insulation
We describe herein the design of a small AC electrostatic model coalescer for investigating coalescence efficiency of water in oil emulsions. The function of the model coalescer is tested on emulsions with different water cuts. In the coalescer, coal
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bdba87d95bf373608cc3855d5fa4ea78
https://hdl.handle.net/11250/2496665
https://hdl.handle.net/11250/2496665
Autor:
Wilhelm R. Glomm, Lars E. Lundgaard, Sébastien Simon, Johan Sjöblom, Cédric Lesaint, Gunnar Berg, Caterina Lesaint
Publikováno v:
Energy & Fuels. 27:75-81
Electrical demulsification is considered an elegant method to enhance the separation of water-in-crude-oil emulsions. Understanding the mechanisms involved during this process remains a challenge for the further development of this separation method.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4828e3a042335c9bce68655c8f24a348
https://doi.org/10.1021/ef3013129
https://doi.org/10.1021/ef3013129
Autor:
Andreas Hannisdal, Sébastien Simon, Dag Lihnjell, Lars E. Lundgaard, Øyvind Spets, Cédric Lesaint, Heléne Vrålstad, Johan Sjöblom
Publikováno v:
Journal of Dispersion Science and Technology. 32:874-880
The dielectric properties and the composition of fourteen light to heavy crude oils have been analyzed. Frequency domain spectroscopy (FDS) has been used in order to determine their dielectric response in the frequency range 0.01 to 1000 Hz. For all
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ca4d458de4a5b69fcd895ae76e8c3d80
https://doi.org/10.1080/01932691.2010.488461
https://doi.org/10.1080/01932691.2010.488461
Publikováno v:
Colloids and Surfaces A: Physicochemical and Engineering Aspects. 369:20-26
Dielectric properties and viscosities of two different crude oils (labelled E and N) and solutions of them diluted in toluene or heptane were measured by frequency domain spectroscopy and rheology, respectively. Crude oils E and N diluted with toluen
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3d3e35c5e9189487129c1db1e47447a4
https://doi.org/10.1016/j.colsurfa.2010.07.011
https://doi.org/10.1016/j.colsurfa.2010.07.011
Publikováno v:
Colloids and Surfaces A: Physicochemical and Engineering Aspects. 352:63-69
The effect of several factors has been studied in order to determine their influence on the electrostatic dehydration process of water-in-model-oil emulsions. Not only application time, waveform, strength and frequency of the applied electric field,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b081925d7e33987fbdba7f6f74bbb988
https://doi.org/10.1016/j.colsurfa.2009.09.051
https://doi.org/10.1016/j.colsurfa.2009.09.051
Publikováno v:
Microporous and Mesoporous Materials. 119:245-251
Large mesoporous aluminas have been prepared by mixing two oppositely charged alumina sources in the presence of surfactants in aqueous media. The resulting materials showed a disordered mesostructure with large mesoporous frameworks. Herein, an alte
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4af45e1855cc04c4e102b8be69df8ac7
https://doi.org/10.1016/j.micromeso.2008.10.022
https://doi.org/10.1016/j.micromeso.2008.10.022