Celebration of Scholars
Modal Propellant Gauging - Propellant Refueling and on Orbit Transfer Operations
Name:
Alec Digirolamo
Major: Physics
Hometown: Pleasant Prairie, WI
Faculty Sponsor:
Kevin Crosby
Other Sponsors:
Type of research: Independent research
Funding: Wisconsin Space Grant Consortium
Name:
Bennett Bartel
Major: Physics
Hometown: New London, WI
Faculty Sponsor:
Kevin Crosby
Other Sponsors:
Type of research: Independent research
Funding: Wisconsin Space Grant Consortium
Abstract
A critical condition for maintaining a presence in deep space is the ability to refuel in microgravity. NASA intends to perform refueling operations in many of their upcoming Artemis missions. To implement new methods of refueling, the methods must meet NASA’s technology readiness level 8. To accomplish this, the Modal Propellant Gauging - Propellant Refueling and on Orbit Transfer Operations (MPG-PROTO) experiment was designed to test new methods in two different aspects of refueling in microgravity; fuel gauging and propellant management. Modal Propellant Gauging (MPG) is a novel method for measuring the amount of fluid in propellant tanks in microgravity. NASA intends to use this method in the Power and Propulsion Element on the Orion spacecraft. PROTO uses a propellant management device to redirect propellant away from the tank’s vent port to prevent the release of toxic cryogens. The goals for MPG-PROTO were to complete the design and building phase by the end of the summer of 2020 and test the experiment aboard a parabolic aircraft in November of 2020. The design of MPG-PROTO began in 2020 and was tested aboard a modified Boeing 727 for parabolic flight campaigns through the Zero-G corporation. This presentation will show the key design elements, results from the parabolic flight testing, and the future goals of MPG-PROTO. MPG-PROTO is currently being prepared for another parabolic flight campaign in May of 2021 and a flight on Blue Origin’s New Shepard Vehicle in the near future.