Journal
IEEE TRANSACTIONS ON DIELECTRICS AND ELECTRICAL INSULATION
Volume 17, Issue 3, Pages 733-741Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TDEI.2010.5492245
Keywords
Prebreakdown; streamer; ionization potential; electron affinity; insulating liquid; additives; density functional theory
Funding
- Norwegian Research Council [164603/I30]
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We investigate different quantum chemical methods to compute ionization potentials and electron affinities for various molecules of interest to streamer propagation experiments in liquids. Solvation effects have been studied for the ionization potential using a polarizable continuum model. The ionization potentials can be reasonably well predicted by the methods used, but electron affinities are more problematic. We discuss possible reasons for these problems. Our primary interest in exploiting these calculations is to aid the understanding of discharges in liquids, and to help predict the utility of various additives for insulating liquids.
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