The Cryogenic Propellant Storage and Transfer (CPST) Project has conducted several technology demonstration tests in the Small Multi-purpose Research Facility (SMiRF) at the NASA Glenn Research Center. The project is demonstrating the in-space capability of long-term storage and transfer of cryogenic propellants, essential for transportation on deep-space exploration missions.
Tiffany Vanderwyst, Jacobs Technology and Chris DeTardo, Sierra Lobo, Inc. prepare a test article to demonstrate zero boil-off of liquid oxygen. Cryogenic propellants such as liquid hydrogen are gases chilled to below freezing temperatures. If temperatures are not maintained, the gases begin to boil-off similar to a teakettle resulting in the loss of valuable liquid propellant. CPST technologies such as insulating blankets and advanced materials coupled with a refrigeration system help maintain the necessary temperatures to prevent boil-off.
Image Credit: NASA
Marvin G. Smith (Wyle Information Systems, LLC)
Mark Grills (Wyle Information Systems, LLC)