Quantifying Uncertainties in Mean Absorption Coefficients for a Wall-Stabilized Electric Arc

Authors

  • R. Fuchs Institute for Energy Technology, HSR University of Applied Sciences Rapperswil, Oberseestrasse 10, 8640 Rapperswil
  • H. Nordborg Institute for Energy Technology, HSR University of Applied Sciences Rapperswil, Oberseestrasse 10, 8640 Rapperswil

DOI:

https://doi.org/10.14311/ppt.2017.2.129

Keywords:

sensitivity, mean absorption coefficient, P1 model, optimization, arc simulation

Abstract

The quality of arc simulations depends significantly on radiation modeling. Uncertainties due to physical parameters and modeling errors should be systematically quantified. We solve the energy balance equation for a wall-stabilized arc using the P1 model, i.e. without a prescribed temperature profile. We derive the linearized equation and assess the arc voltage sensitivity. This method allows us to optimize the definition of mean absorption coefficients consistently and at low computational costs.

References

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Published

2017-02-11

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Section

Articles