SPACE FLIGHT SYSTEMS RADIOISOTOPE POWER SYSTEMS PROGRAM OFFICE NATIONAL CENTER FOR SPACE EXPLORATION RESEARCH EXTERNAL PARTNERS EDUCATION/OUTREACH SPACE EXPLORATION BENEFITS PROGRAM SUPPORT IMAGE GALLERY



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Cryogenic Propellant Storage and Transfer


Cryogenic propellants -- gasses under normal conditions, chilled to subfreezing temperatures and condensed to form highly combustible liquids -- provide high-energy propulsion solutions critical to future, long-term human exploration missions beyond low-Earth orbit. The challenge is to develop means of storing and transferring these propellants in space for long duration, and preventing temperature fluctuations that contribute to fuel losses due to "boil off."

The Cryogenic Propellant Storage & Transfer (CPST) Technology Demonstration Mission will demonstrate the capability to safely and efficiently store, transfer and measure cryogenic propellants on-orbit, enabling next-generation flight vehicles to store large quantities of fuel for their journeys of discovery.

Why are cryogenic propellants of benefit to spaceflight? They dramatically increase specific impulse, or the amount of thrust delivered per unit mass of rocket fuel, providing much higher performance than conventional propellants and permitting longer-range, higher-payload missions. As NASA seeks innovative paths for human space exploration of multiple potential destinations such as the moon, asteroids, the Lagrange points -- where the gravitational pull from two celestial bodies cancels each other out, permitting stationary orbit -- and Mars and beyond, the need for high-performance technologies is crucial.

 

 

Cryogenic Propellant Storage and Transfer News

 

 

 

 

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