Supplemental Development Testing of Cryogen Cooled Systems for Cryopumping Gaseous Hydrogen.

摘要

Three additional type A cryopump assemblies were tested in the Aerospace Research Chamber (12V) test unit, von Karman Gas Dynamics Facility (VKF) during April 24 to May 15, 1978, in support of Neutral Beam Injection work being done by the Energy Research Development Administration (ERDA), Oak Ridge National Laboratory (ORNL). These cryopumps were additional requirements which resulted from previous developmental work at AEDC. The objectives of the tests were to verify operating procedures, hydrogen pumping speeds, and pump operating endurance under operational and steady state conditions. Each pump assembly exceeded the operational design requirements specified. Post-test checks and inspections revealed no degradation of pump components due to test environments. Upon completion of testing, the pump assemblies were shipped to ORNL for incorporation into their Neutral Beam Injection Systems. (Author)