Popis: |
Ball and NASA have been developing technologies to support future Exploration Missions that require long term cryogenic storage. The long term cryogenic storage needs are for propellants (oxygen, hydrogen, methane), life support (oxygen, nitrogen), and power systems (fuel cell reactants). Specific Exploration Program applications include the Cryogenic Propellant Storage and Transfer (CPST), On-Orbit Fuel Depots, Earth Departure Stage (EDS) and the Landers. The cryogenic storage technologies include: foam and multi-layer insulation, load bearing (maintains own vacuum) insulation, supports and struts, distributed mechanical cooling, cryogenic shields, and radiators. These technologies have been leveraged primarily from Ball flight science programs and tailored and advanced specifically for Exploration. This paper will present an overview of these technologies and their application. |