NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
In-Space Propellant Production Using WaterA new era of space exploration is being planned. Manned exploration architectures under consideration require the long term storage of cryogenic propellants in space, and larger science mission directorate payloads can be delivered using cryogenic propulsion stages. Several architecture studies have shown that in-space cryogenic propulsion depots offer benefits including lower launch costs, smaller launch vehicles, and enhanced mission flexibility. NASA is currently planning a Cryogenic Propellant Storage and Transfer (CPST) technology demonstration mission that will use existing technology to demonstrate long duration storage, acquisition, mass gauging, and transfer of liquid hydrogen in low Earth orbit. This mission will demonstrate key technologies, but the CPST architecture is not designed for optimal mission operations for a true propellant depot. This paper will consider cryogenic propellant depots that are designed for operability. The operability principles considered are reusability, commonality, designing for the unique environment of space, and use of active control systems, both thermal and fluid. After considering these operability principles, a proposed depot architecture will be presented that uses water launch and on orbit electrolysis and liquefaction. This could serve as the first true space factory. Critical technologies needed for this depot architecture, including on orbit electrolysis, zero-g liquefaction and storage, rendezvous and docking, and propellant transfer, will be discussed and a developmental path forward will be presented. Finally, use of the depot to support the NASA Science Mission Directorate exploration goals will be presented.
Document ID
20120015764
Document Type
Conference Paper
Authors
Notardonato, William (NASA Kennedy Space Center Cocoa Beach, FL, United States)
Johnson, Wesley (NASA Kennedy Space Center Cocoa Beach, FL, United States)
Swanger, Adam (NASA Kennedy Space Center Cocoa Beach, FL, United States)
McQuade, William (NASA Kennedy Space Center Cocoa Beach, FL, United States)
Date Acquired
August 26, 2013
Publication Date
September 11, 2012
Subject Category
Propellants and Fuels
Report/Patent Number
KSC-2012-245
Meeting Information
Space 2012(Pasadena, CA)
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

Available Downloads

NameType 20120015764.pdf STI