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Title: Physics based model for online fault detection in autonomous cryogenic loading system

We report the progress in the development of the chilldown model for a rapid cryogenic loading system developed at NASA-Kennedy Space Center. The nontrivial characteristic feature of the analyzed chilldown regime is its active control by dump valves. The two-phase flow model of the chilldown is approximated as one-dimensional homogeneous fluid flow with no slip condition for the interphase velocity. The model is built using commercial SINDA/FLUINT software. The results of numerical predictions are in good agreement with the experimental time traces. The obtained results pave the way to the application of the SINDA/FLUINT model as a verification tool for the design and algorithm development required for autonomous loading operation.
Authors:
 [1] ;  [2] ;  [3] ; ;  [4] ; ;  [5]
  1. Atlas Scientific, San Jose, MD (United States)
  2. SGT, Inc., Greenbelt, MD (United States)
  3. Mission Critical Technologies, Inc., El Segundo, CA (United States)
  4. Ames Research Center, NASA, Moffett Field, CA (United States)
  5. Kennedy Space Center, NASA, Moffett Field, CA (United States)
Publication Date:
OSTI Identifier:
22262730
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1573; Journal Issue: 1; Conference: Cryogenic engineering conference, Anchorage, AK (United States), 17-21 Jun 2013; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; APPROXIMATIONS; COMPUTER CODES; CONTROL; DESIGN; DETECTION; FORECASTING; LOADING; TWO-PHASE FLOW