On the optical radiation of ablation dominated arcs in air
2011 (English)In: 19th Symposium on Physics of Switching Arc 2011, FSO 2011, Brno University of Technology , 2011, 113-116 p.Conference paper (Refereed)
The optical emission of high current electric arcs confined between polymeric (PA6 - C6H11ON- and PMMA -C5H8O2-) and ceramic (Al2O 3) walls has been investigated experimentally in air. Arcs standing between copper electrodes with a separation of 8 mm under AC currents with peak values of 2 kA are studied here. The arc optical emission in the range between 250 and 700 nm is measured with a fast spectrometer at the mid-section of the arc column, while the spatial variations of the radiation is recorded with high speed photography. It is found that the ablation of the polymeric walls strongly reduce the intensity of emitted copper peaks as well as the arc column radius. Furthermore, a strong hydrogen Balmer-alpha peak is detected, which indicates the strong injection of hydrogen in the arc atmosphere by the ablation of the polymeric walls.
Place, publisher, year, edition, pages
Brno University of Technology , 2011. 113-116 p.
, Symposium on the Physics of the Switching Arc, 19
Electric arcs, Polymer ablation, Radiation
Electrical Engineering, Electronic Engineering, Information Engineering
IdentifiersURN: urn:nbn:se:kth:diva-72531ScopusID: 2-s2.0-84901759724ISBN: 978-163266006-0OAI: oai:DiVA.org:kth-72531DiVA: diva2:487742
19th Symposium on Physics of Switching Arc 2011, FSO 2011, Brno, Czech Republic, 5 September 2011 through 9 September 2011
QC 201204102012-01-312012-01-312015-04-22Bibliographically approved