Thermodynamic analysis of a demonstration concept for the long-duration storage and transfer of cryogenic propellants

• Concept for cryogenic propellant and storage transfer mission is proposed.
• Results of thermodynamic analysis of transfer mission operations are presented.
• Analysis is verified with liquid hydrogen transfer tests at Glenn Research Center.
• Model predicts success of no-vent transfers at wide range of fill levels.

In the development of a concept for an experimental platform for demonstrating technologies associated with the on-orbit handling, transfer and storage of cryogenic propellants, credibility is enhanced with simulations of operations using thermodynamic models. Predictions have further credibility if the modeling technique is verified against simulations of actual cryogenic fuel transfers during ground testing. This paper will demonstrate the capability of simulating the transfer of liquid hydrogen as preformed at NASA’s Glenn Research Center. Results of simulations of an experimental space mission developed at Ball Aerospace will then follow. The mission concept is intended to demonstrate the technologies and storage methodologies for supporting long-term storage and transfer of cryogenic fuels in space.