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Title: Eucken correction in high-temperature gases with electronic excitation

In the present paper, thermal conductivity coefficient of high-temperature molecular and atomic gases with excited electronic states is studied using both the kinetic theory algorithm developed by authors earlier and the well known simple expression for the thermal conductivity coefficient proposed by Eucken and generalized by Hirschfelder. The influence of large collision diameters of excited states on the thermal conductivity is discussed. The limit of validity of the Eucken correction is evaluated on the basis of the kinetic theory calculations; an improved model suitable for air species under high-temperature conditions is proposed.
Authors:
; ;  [1]
  1. Saint Petersburg State University, 28 Universitetsky pr., 198504 Saint Petersburg (Russian Federation)
Publication Date:
OSTI Identifier:
22252860
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Chemical Physics; Journal Volume: 140; Journal Issue: 18; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; COLLISIONS; EXCITATION; EXCITED STATES; TEMPERATURE RANGE 0400-1000 K; THERMAL CONDUCTIVITY