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<p>The use of Very Low Earth Orbit for high resolution imaging and low latency communication is currently impeded by the significant drag that satellites experience in this region. Air-breathing propulsion systems such as the TAMU PPT may allow for extended missions in the upper atmosphere by removing the need to carry onboard propellant. The pulsed nature of the TAMU PPT allows for throttleable thrust control while its compact size enables multiple thrusters to be packed together forming a thruster array. High frequency pulsing experiments with pulse rates between 20 and 30&#xa0;Hz were conducted over a variety of pressures and pulsing energies. Peak thrust-to-power values of 15 mN/kW were found to occur at a pressure of about 3.0&#xa0;hPa with pulsing frequencies of about 25&#xa0;Hz, an average energy per pulse of 4&#xa0;J, and a thrust of 1.6 mN. A frequency sweep conducted at a similar pressure and energy per pulse showed that operation at 43&#xa0;Hz produced 2.7 mN of thrust with a thrust-to-power ratio of 16 mN/kW. With an outlet area of about 0.5 cm<sup>2</sup> per thruster the TAMU PPT was shown to have a thrust density greater than 5 mN/cm<sup>2</sup>.</p>

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Air-breathing pulsed plasma thruster array demonstrating high thrust density

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2025年7月1日

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  • Cameron Adkins,
  • Kacy Carter,
  • Dante Belcher,
  • David Staack

摘要

The use of Very Low Earth Orbit for high resolution imaging and low latency communication is currently impeded by the significant drag that satellites experience in this region. Air-breathing propulsion systems such as the TAMU PPT may allow for extended missions in the upper atmosphere by removing the need to carry onboard propellant. The pulsed nature of the TAMU PPT allows for throttleable thrust control while its compact size enables multiple thrusters to be packed together forming a thruster array. High frequency pulsing experiments with pulse rates between 20 and 30 Hz were conducted over a variety of pressures and pulsing energies. Peak thrust-to-power values of 15 mN/kW were found to occur at a pressure of about 3.0 hPa with pulsing frequencies of about 25 Hz, an average energy per pulse of 4 J, and a thrust of 1.6 mN. A frequency sweep conducted at a similar pressure and energy per pulse showed that operation at 43 Hz produced 2.7 mN of thrust with a thrust-to-power ratio of 16 mN/kW. With an outlet area of about 0.5 cm2 per thruster the TAMU PPT was shown to have a thrust density greater than 5 mN/cm2.