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CRYOGENIC TESTING PREPARATION. The racetrack coil requires a cooldown to and power testing at a temperature near 77K A 12 x 12 x 12” aluminum test module has been fabricated to qualify pedestrian insulation types for the above requirement
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CRYOGENIC TESTING PREPARATION • The racetrack coil requires a cooldown to and power testing at a temperature near 77K • A 12 x 12 x 12” aluminum test module has been fabricated to qualify pedestrian insulation types for the above requirement • 4” of layered spun glass duct board performed adequately without dew formation difficulties • Primary lesson learned: A thin gas layer is desirable between the liquid tray and the underlying insulation • Next step: Collaborate with EE’s on power feedthroughs
INSULATION TEST MODULE 2” Duct Board Sample 12” x 12” x 12” Test Module
INSULATION TEST MODULE, 2” TRIAL Gaseous Vent LN2 Feed Line Dew/Frost Forming