Meng Li

Friday 11
K. Fundamental Processes and Cross-Sections
C.M. Franck, J. De Urquijo - Each talk is 10'+2' duration
› 12:15 - 12:30 (15min)
› Blaise
Two Temperature Plasma Properties of Ablated PTFE Vapour Used for Pulsed Plasma Thrusters
Weizong Wang  1, *@  , Li Meng  1  , Xin Tu  2  
1 : Qian Xuesen Laboratory of Space Technology, China Academy of Space Technology
No. 104, Youyi Road, Haidian District, Beijing, 100094 -  China
2 : Department of Electrical Engineering and Electronics, The University of Liverpool
* : Corresponding author

This paper deals with two temperature plasma properties of ablated PTFE vapour which is generated by a discharge ablation in Pulsed Plasma Thrusters (PPTs) as a form of electric spacecraft propulsion. The species composition and thermodynamic properties are numerically determined using two-temperature Saha equation and Guldberg-Waage equation. Transport properties are calculated with most recent collision interaction potentials by adopting Devoto's electron and heavy particle decoupling approach in the frame of Chapman–Enskog method. The database obtained here clearly shows the influence of non-equilibrium effects on plasma properties and hence will serve as reliable reference data for simulation of non-equilibrium plasma behaviour in PPTs.


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