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The hydrogel absorbs water in an amount up to 200 times its own mass, and gives it away in the form of low-pressure steam under normal conditions. This allows it to be used as a gas generator for spacecraft propulsion systems. The absence of the most usual elements of the pneumohydraulic circuit simplifies and reduces the cost of such a propulsion system, as well as increases its reliability. Hydrogel sublimation based thruster can be the simplest low thrust propulsion option for the spacecraft.

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Evaluation of the Efficiency of Spacecraft Propulsion Systems Using Hydrogel Sublimation

  • 会议论文

  • 发表日期：

    2026年

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  • Pavel M. Bechasnov

摘要

The hydrogel absorbs water in an amount up to 200 times its own mass, and gives it away in the form of low-pressure steam under normal conditions. This allows it to be used as a gas generator for spacecraft propulsion systems. The absence of the most usual elements of the pneumohydraulic circuit simplifies and reduces the cost of such a propulsion system, as well as increases its reliability. Hydrogel sublimation based thruster can be the simplest low thrust propulsion option for the spacecraft.