Formation and dispersion of small water droplets in an insulating oil under a pulsed electric field

He, W.; Chang, Jen‐Shih; Baird, M. H. I.

doi:10.1109/ceidp.1996.564703

Cited by 2 publications

(1 citation statement)

References 5 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Domestic and foreign scholars express a more consistent view of the dynamic mechanism of high-voltage pulsed electric fields promoting the coalescence of emulsified droplets: in water-to-oil emulsified oil, the conductivity of oil and droplets, which may be considered the continuous phase and dispersed phase, respectively, vary considerably [8,9]. Droplets are polarised by an external electric field, and the polarised droplets undergo coalescence through collision within a short period of time [10][11][12]. Dipole coalescence and oscillation coalescence effects are believed to exist in pulsed electric fields, and oscillation coalescence is the main factor influencing droplet coalescence [2,13].…”

Section: Introductionmentioning

confidence: 99%

Review of the Dynamics of Coalescence and Demulsification by High-Voltage Pulsed Electric Fields

Peng

Liu

Gong

et al. 2016

International Journal of Chemical Engineering

View full text Add to dashboard Cite

The coalescence of droplets in oil can be implemented rapidly by high-voltage pulse electric field, which is an effective demulsification dehydration technological method. At present, it is widely believed that the main reason of pulse electric field promoting droplets coalescence is the dipole coalescence and oscillation coalescence in pulse electric field, and the optimal coalescence pulse electric field parameters exist. Around the above content, the dynamics of high-voltage pulse electric field promoting the coalescence of emulsified droplets is studied by researchers domestically and abroad. By review, the progress of high-voltage pulse electric field demulsification technology can get a better understanding, which has an effect of throwing a sprat to catch a whale on promoting the industrial application.

show abstract

Section: Introductionmentioning

confidence: 99%

Review of the Dynamics of Coalescence and Demulsification by High-Voltage Pulsed Electric Fields

Peng

Liu

Gong

et al. 2016

International Journal of Chemical Engineering

View full text Add to dashboard Cite

show abstract

Breakdown and flashover phenomena related to the presence of high absolute water contents in clean and carbonized transformer oil

Krins

Reuter²,

Borsi³

et al.

Annual Report Conference on Electrical Insulation and Dielectric Phenomena

View full text Add to dashboard Cite

This paper reports on experimental investigations dealing with the impact of dissolved and disperse water on the breakdown strength of open oil gaps and the flashover behavior of solid/liquid interfaces in a uniform electrical AC field using clean as well as carbonized transformer oils. The measurements reveal that in technically clean oil with disperse water at small gap distances the breakdown strength can for subsequent voltage stresses be significantly higher after the first initiation of a breakdown than during the fmt readings while for larger gap spacings this effect cannot be noticed. Moreover, it is shown in this contribution that especially for practically relevant long gap distances carbonized oils can exhibit a better electrical strength in the presence of high absolute water contents than clean oil. This finding applies to the breakdown voltage of open oil gaps as well as to the flashover behavior of soliaquid interfaces.

show abstract

Formation and dispersion of small water droplets in an insulating oil under a pulsed electric field

Cited by 2 publications

References 5 publications

Review of the Dynamics of Coalescence and Demulsification by High-Voltage Pulsed Electric Fields

Review of the Dynamics of Coalescence and Demulsification by High-Voltage Pulsed Electric Fields

Breakdown and flashover phenomena related to the presence of high absolute water contents in clean and carbonized transformer oil

Contact Info

Product

Resources

About