Affinity of pulsed positive discharges to dielectrics in N2:O2 mixtures

A.A. Dubinova, Dirk Trienekens, Ute Ebert, Sander Nijdam

Research output: Contribution to conferencePaperAcademic

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Abstract

We simulate positive streamer discharges developing in N2:O2 near dielectric and conductive materials. This research is important, for example, in the high voltage technology where surface flashovers are to be avoided. We designed an axially symmetric model in which a positive inception cloud develops at the tip of the needle electrode and propagates towards and then along a dielectric rod. We measure the velocity of a positive inception cloud (before the inception cloud is destabilized into filaments) propagating along the dielectric rod and compare it with experiments. We also explain the importance of the fact that the photoionization is shaded by the dielectric rod and therefore positive streamers in air are less sensitive to the electron emission from the dielectric
surface.
Original languageEnglish
Publication statusPublished - 26 Jul 2015
Event32nd International Conference on Phenomena in Ionized Gases (ICPIG 2015), July 26-31, 2015, Iasi, Romania - Iasa, Romania
Duration: 26 Jul 201531 Jul 2015
http://www.icpig2015.net/

Conference

Conference32nd International Conference on Phenomena in Ionized Gases (ICPIG 2015), July 26-31, 2015, Iasi, Romania
Abbreviated titleICPIG 2015
CountryRomania
CityIasa
Period26/07/1531/07/15
Internet address

Cite this

Dubinova, A. A., Trienekens, D., Ebert, U., & Nijdam, S. (2015). Affinity of pulsed positive discharges to dielectrics in N2:O2 mixtures. Paper presented at 32nd International Conference on Phenomena in Ionized Gases (ICPIG 2015), July 26-31, 2015, Iasi, Romania, Iasa, Romania.
Dubinova, A.A. ; Trienekens, Dirk ; Ebert, Ute ; Nijdam, Sander. / Affinity of pulsed positive discharges to dielectrics in N2:O2 mixtures. Paper presented at 32nd International Conference on Phenomena in Ionized Gases (ICPIG 2015), July 26-31, 2015, Iasi, Romania, Iasa, Romania.
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Dubinova, AA, Trienekens, D, Ebert, U & Nijdam, S 2015, 'Affinity of pulsed positive discharges to dielectrics in N2:O2 mixtures' Paper presented at 32nd International Conference on Phenomena in Ionized Gases (ICPIG 2015), July 26-31, 2015, Iasi, Romania, Iasa, Romania, 26/07/15 - 31/07/15, .

Affinity of pulsed positive discharges to dielectrics in N2:O2 mixtures. / Dubinova, A.A.; Trienekens, Dirk; Ebert, Ute; Nijdam, Sander.

2015. Paper presented at 32nd International Conference on Phenomena in Ionized Gases (ICPIG 2015), July 26-31, 2015, Iasi, Romania, Iasa, Romania.

Research output: Contribution to conferencePaperAcademic

TY - CONF

T1 - Affinity of pulsed positive discharges to dielectrics in N2:O2 mixtures

AU - Dubinova, A.A.

AU - Trienekens, Dirk

AU - Ebert, Ute

AU - Nijdam, Sander

PY - 2015/7/26

Y1 - 2015/7/26

N2 - We simulate positive streamer discharges developing in N2:O2 near dielectric and conductive materials. This research is important, for example, in the high voltage technology where surface flashovers are to be avoided. We designed an axially symmetric model in which a positive inception cloud develops at the tip of the needle electrode and propagates towards and then along a dielectric rod. We measure the velocity of a positive inception cloud (before the inception cloud is destabilized into filaments) propagating along the dielectric rod and compare it with experiments. We also explain the importance of the fact that the photoionization is shaded by the dielectric rod and therefore positive streamers in air are less sensitive to the electron emission from the dielectricsurface.

AB - We simulate positive streamer discharges developing in N2:O2 near dielectric and conductive materials. This research is important, for example, in the high voltage technology where surface flashovers are to be avoided. We designed an axially symmetric model in which a positive inception cloud develops at the tip of the needle electrode and propagates towards and then along a dielectric rod. We measure the velocity of a positive inception cloud (before the inception cloud is destabilized into filaments) propagating along the dielectric rod and compare it with experiments. We also explain the importance of the fact that the photoionization is shaded by the dielectric rod and therefore positive streamers in air are less sensitive to the electron emission from the dielectricsurface.

M3 - Paper

ER -

Dubinova AA, Trienekens D, Ebert U, Nijdam S. Affinity of pulsed positive discharges to dielectrics in N2:O2 mixtures. 2015. Paper presented at 32nd International Conference on Phenomena in Ionized Gases (ICPIG 2015), July 26-31, 2015, Iasi, Romania, Iasa, Romania.