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Article
Analysis of Boltzmann Equation for SF6 and Some Gas-Mixture Discharges at Critical Field Condition

Authors: Abdulrida S. Hasaani --- Mukhlis M. Ismail
Journal: Iraqi Journal of Applied Physics المجلة العراقية للفيزياء التطبيقية ISSN: 18132065 23091673 Year: 2016 Volume: 12 Issue: 1 Pages: 31-34
Publisher: iraqi society for alternative and renewable energy sources and techniques الجمعية العراقية لمصادر وتقنيات الطاقة البديلة والمستجدة

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Abstract

The energy electron distribution function at a particular reduced electric field E/p (where E is the electric field and p is the gas pressure) for SF6+He and SF6+Ar mixtures has been studied. The distribution function has been calculated as a function of percentage mixture ratio (k) ranging from zero (pure SF6) to 100% (for He or Ar) at (E/p)crt. On the other stage, these distribution functions are also studied as a function of (k) at a particular (E/p)crt. under which the breakdown occurs for the same gas mixtures. The (E/p)crt calculation is adopted to explain the discrepancy of the distribution function for gas mixtures. It is also found that the distribution function for gas mixtures at (E/p)crt. and for any value of (k) are identical.


Article
Analysis of Boltzmann Equation for SF6 and Some Gas-Mixture Discharges at Critical Field Condition
تحليل معادلة بولتزمان لسداسي فلوريد الكبريت وبعض تفريغات الخلائط الغازية تحت شرط المجال الحرج

Authors: Abdulrida S. Hasaani --- Mukhlis M. Ismail
Journal: Iraqi Journal of Applied Physics المجلة العراقية للفيزياء التطبيقية ISSN: 18132065 23091673 Year: 2017 Volume: 13 Issue: 1 Pages: 31-34
Publisher: iraqi society for alternative and renewable energy sources and techniques الجمعية العراقية لمصادر وتقنيات الطاقة البديلة والمستجدة

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Abstract

The energy electron distribution function at a particular reduced electric field E/p (where E is the electric field and p is the gas pressure) for SF6+He and SF6+Ar mixtures has been studied. The distribution function has been calculated as a function of percentage mixture ratio (k) ranging from zero (pure SF6) to 100% (for He or Ar) at (E/p)crt. On the other stage, these distribution functions are also studied as a function of (k) at a particular (E/p)crt. under which the breakdown occurs for the same gas mixtures. The (E/p)crt calculation is adopted to explain the discrepancy of the distribution function for gas mixtures. It is also found that the distribution function for gas mixtures at (E/p)crt. and for any value of (k) are identical.


Article
Theoretical study of the Electron energy distribution Function and the ionization coefficient for pure Krypton, Chlorine discharge and their mixtures
دراسة نظرية لدالة توزيع طاقة الالكترون ومعامل التاين في غازي الكربتون والكلور النقيين وخليطيهما

Author: Gulala Muhammad Faraj كولاله محمد فرج
Journal: kirkuk university journal for scientific studies مجلة جامعة كركوك - الدراسات العلمية ISSN: 19920849 / 26166801 Year: 2017 Volume: 12 Issue: 2 Pages: 141-159
Publisher: Kirkuk University جامعة كركوك

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Abstract

Theoretical calculations performed on the electron energy distribution function (EEDF) and ionization coefficient ( ) in pure Krypton (Kr) and pure chlorine (Cl2) and their mixtures by using Boltzmann transport equation. The numerical solutions are utilized within the international computer code kinema-Elendif. The results have been compared successfully with other researcher's results and there was a good agreements. A set of electron cross-section data have been used in the calculation. The calculated distribution function found to be remarked non-Maxwellian that have energy variations which reflect the import electron-molecule energy exchange processes. It is noted that a small quantity of Cl2 add to pure Kr affects the electron energy distribution function and the ionization coefficient of the mixtures.

تم اجراء دراسة نظرية لدالة التوزيع الطاقي للالكترون ومعامل التاين الالكتروني لغازي Cl2 و Kr النقيين وخليطيهما من خلال معادلة الانتقال الطاقي لبولتزمان حسابيا من خلال البرنامج (code-Kinema-Elendif) ), وقد تم مقارنة النتائج التي تم الحصول عليها مع نتائج باحثين اخرين و وجد توافقا جيدا بينهم. كما وتم استخدام المقاطع العرضية لكل من هاذين الغازين ووجد بأن دوال التوزيع هي لاماكسويلية و تمتلك اختلافات في الطاقة تعكس دور عمليات تبادل طاقة الأكترون الجزيئي .وقد لوحظ ان اضافة نسبة قليلة من غاز Cl2 الى غاز Kr النقي يوثر على دالة التوزيع الطاقي ومعامل التاين تاثيرا واضحا.

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