Title: Estimation of sparking voltage in high-temperature nitrogen gas present under a constant volume condition
Abstract:Concerning an electrical breakdown of a high-temperature gas, theoretical calculations were carried out to obtain a sparking voltage from an ionization coefficient on the basis of the Townsend breakdo...Concerning an electrical breakdown of a high-temperature gas, theoretical calculations were carried out to obtain a sparking voltage from an ionization coefficient on the basis of the Townsend breakdown theory. The calculations were made for a nitrogen gas with a mass-density of 1.14 kg/m <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">3</sup> under a constant volume, in consideration of a dissociation and an ionization reactions of N <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sub> . The calculation result for the sparking voltage V <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">s</sub> showed that V <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">s</sub> is 2.9 × 10 <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">4</sup> V at 300 K and also remains almost unchanged in a temperature range from 300 to 4000 K. The result also revealed that V <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">s</sub> decreases from 2.9×10 <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">4</sup> to 1.3×10 <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">4</sup> V with the temperature from 4000 to 6000 K. This reduction in V <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">s</sub> was found to arise from the production of N and to result from the lower ionization potential of N.Read More
Publication Year: 2013
Publication Date: 2013-10-01
Language: en
Type: article
Indexed In: ['crossref']
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Cited By Count: 1
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