Abstract
Using water as propellant, which could effectively increase the specific impulse, prevent late-time ablation and reduce pollution, was a new technology to improve the performance of pulsed plasma thruster (PPT). As the prerequisite of pushing the liquid propellant pulsed plasma thruster (LP-PPT) into engineering application, the trace propellant supply system was difficult to satisfy the needs of LP-PPT. Therefore, first of all, the existing LP-PPT supply systems were introduced. And their strengths and weaknesses were analyzed. Secondly, the cork, organic material, was used as osmotic media. Subsequently a multi-section infiltration water supply system was developed. Thirdly, based on the theoretical analysis of the supply principle, two sets of measurement plans were designed. And the related experiments were carried out. Finally, combined with the PPT, the performances of LP-PPT were tested. It is found that the mass flow rate of three-section supply system is 21.76 μg/s, which is able to meet the requirement of LP-PPT prototype. The performances of LP-PPT is acquired. The impulse bit, specific impulse and efficiency are 82.998 μN·s, 194.6s and 2.47%, respectively.
| Original language | English |
|---|---|
| Pages (from-to) | 1648-1653 |
| Number of pages | 6 |
| Journal | Tuijin Jishu/Journal of Propulsion Technology |
| Volume | 38 |
| Issue number | 7 |
| DOIs | |
| Publication status | Published - 1 Jul 2017 |
Keywords
- Electric propulsion
- Liquid propellant pulsed plasma thruster
- Mass flow rate
- Penetrant meterial
- Supply system
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