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Article Dans Une Revue Cryogenics Année : 2016

Optimal design of a Thermodynamic Vent System for cryogenic propellant storage

Résumé

Future operations in space exploration require to store cryogenic liquids for long duration. Residual heat loads, due to heat conduction in the launcher structure or solar radiation, induce cryogenic propellant vaporization and tank self-pressurization. The Thermodynamic Vent System (TVS) permits to control self-pressurization using the following procedure: a fraction of liquid propellant is removed from the tank by a pump, cooled down by a heat exchanger and re-injected inside the tank as a jet or a spray. As no natural heat sink is available in space, the cold source is created by removing another fraction of liquid propellant which is expanded in a Joule-Thomson valve and vented to space. The sub-cooled injection is followed by vapor condensation and liquid bath destratification due to mixing. In this work, an optimization method is applied to an extended homogeneous thermodynamic model to design a TVS system maximizing the storage duration under various heat load and tank size assumptions.
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hal-01516088 , version 1 (28-11-2022)

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Samuel Mer, David Fernández, Jean-Paul Thibault, Christophe Eric Corre. Optimal design of a Thermodynamic Vent System for cryogenic propellant storage. Cryogenics, 2016, 80 (part 1), pp.127-137. ⟨10.1016/j.cryogenics.2016.09.012⟩. ⟨hal-01516088⟩
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