Open AccessCold Vacuum Drying (CVD) Set Point Determination
Author(s) -
Barbara L. Philipp
Publication year - 2000
Language(s) - English
Resource type - Reports
DOI - 10.2172/801885
Subject(s) - purge , launch vehicle , event (particle physics) , class (philosophy) , world class , instrumentation (computer programming) , point (geometry) , process (computing) , mechanical engineering , engineering , environmental science , computer science , physics , aerospace engineering , waste management , mathematics , operating system , industrial engineering , geometry , quantum mechanics , artificial intelligence
The Safety Class Instrumentation and Control (SCIC) system provides active detection and response to process anomalies that, if unmitigated, would result in a safety event. Specifically, actuation of the SCIC system includes two portions. The portion which isolates the MCO and initiates the safety-class helium (SCHe) purge, and the portion which detects and stops excessive heat input to the MCO on high tempered water MCO inlet temperature. For the MCO isolation and purge, the SCIC receives signals from MCO pressure (both positive pressure and vacuum), helium flow rate, bay high temperature switches, seismic trips and time under vacuum trips