Development of a Flight Qualified Heat Switch for Ln2 Temperatures

Autor: Terry Nixon, Juan Bascuñán, James Maguire
Rok vydání: 1992
Předmět:
Zdroj: Advances in Cryogenic Engineering ISBN: 9781461364863
DOI: 10.1007/978-1-4615-3368-9_75
Popis: A self contained heat switch with no moving parts, has been designed, assembled and tested. The device utilizes concentric cylinders separated by a small gap, filled or emptied of gas to achieve its switching action. The presence or absence of gas is controlled by an adsorption pump containing activated charcoal. During the development of the switch, different geometries were studied — multiple and single gaps, and also different materials — copper, aluminum. Prototypes were built and tested with different gases — helium, nitrogen, argon, neon.
Databáze: OpenAIRE