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Thermodynamic and Transport Properties of Real Air Plasma in Wide Range of Temperature and Pressure 被引量:2

Thermodynamic and Transport Properties of Real Air Plasma in Wide Range of Temperature and Pressure
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摘要 Air plasma has been widely applied in industrial manufacture. In this paper, both dry and humid air plasmas' thermodynamic and transport properties are calculated in temperature 300 100000 K and pressure 0.1-100 atm. To build a more precise model of real air plasma, over 70 species are considered for composition. Two different methods, the Gibbs free energy minimization method and the mass action law method, are used to deternfinate the composition of the air plasma in a different temperature range. For the transport coefficients, the simplified Chapman-Enskog method developed by Devoto has been applied using the most recent collision integrals. It is found that the presence of CO2 has almost no effect on the properties of air plasma. The influence of H2O can be ignored except in low pressure air plasma, in which the saturated vapor pressure is relatively high. The results will serve as credible inputs for computational simulation of air plasma. Air plasma has been widely applied in industrial manufacture. In this paper, both dry and humid air plasmas' thermodynamic and transport properties are calculated in temperature 300 100000 K and pressure 0.1-100 atm. To build a more precise model of real air plasma, over 70 species are considered for composition. Two different methods, the Gibbs free energy minimization method and the mass action law method, are used to deternfinate the composition of the air plasma in a different temperature range. For the transport coefficients, the simplified Chapman-Enskog method developed by Devoto has been applied using the most recent collision integrals. It is found that the presence of CO2 has almost no effect on the properties of air plasma. The influence of H2O can be ignored except in low pressure air plasma, in which the saturated vapor pressure is relatively high. The results will serve as credible inputs for computational simulation of air plasma.
出处 《Plasma Science and Technology》 SCIE EI CAS CSCD 2016年第7期732-739,共8页 等离子体科学和技术(英文版)
基金 supported by the National Key Basic Research Program of China(973 Program)(No.2015CB251002) National Natural Science Foundation of China(Nos.51521065,51577145) the Science and Technology Project Funds of the Grid State Corporation(SGTYHT/13-JS-177) the Fundamental Research Funds for the Central Universities State Grid Corporation Project(GY71-14-004)
关键词 air plasma thermodynamic properties transport coefficients air plasma, thermodynamic properties, transport coefficients
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