Research on the Electrical Properties of Propellant Combustion Products Containing Potassium Salt

doi:10.3969/j.issn.1000-1093.2018.02.012

Abstract

Abstract: In order to improve the electrical properties of propellant combustion products, the alkali metal compound K₂CO₃ with low ionization potential is added to improve the degree of ionization based on the theory of thermal ionization of gases. Through the analysis of physical and chemical processes of combustion reaction of propellant, a thermoelectric model of propellant gas is established by means of the interior ballistic theory and plasma theory. The thermodynamic processes of combustion pressure and combustion temperature are simulated, and the feasibility of the proposed model is verified by comparing the calculated results with the experimental data. Saha equation and staggered method are used to analyze the effects of propellant force, combustion chamber volume and potassium content on the electron density and conductivity of combustion products. The emission spectrum intensities of combustion products without or with potassium salt are measured using spectrometry. The results show that K₂CO₃ can make the propellant gas have higher conductivity, the increase in propellant force and chamber volume can improve the conductivity of combustion gas. Key

Key words: propellantcombustion, thermalionization, electrondensity, conductivity

CLC Number:

TQ562⁺.21

MAO Bao-quan， LI Cheng， BAI Xiang-hua， LAN Tu. Research on the Electrical Properties of Propellant Combustion Products Containing Potassium Salt[J]. Acta Armamentarii, 2018, 39(2): 296-304.

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第39卷
第2期2018 年2月兵工学报ACTA
ARMAMENTARIIVol.39No.2Feb.2018

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