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Preliminary control system design and analysis for the Space Station Furnace Facility thermal control systemThis report presents the Space Station Furnace Facility (SSFF) thermal control system (TCS) preliminary control system design and analysis. The SSFF provides the necessary core systems to operate various materials processing furnaces. The TCS is defined as one of the core systems, and its function is to collect excess heat from furnaces and to provide precise cold temperature control of components and of certain furnace zones. Physical interconnection of parallel thermal control subsystems through a common pump implies the description of the TCS by coupled nonlinear differential equations in pressure and flow. This report formulates the system equations and develops the controllers that cause the interconnected subsystems to satisfy flow rate tracking requirements. Extensive digital simulation results are presented to show the flow rate tracking performance.
Document ID
19950014144
Acquisition Source
Legacy CDMS
Document Type
Technical Memorandum (TM)
Authors
Jackson, M. E. (NASA Marshall Space Flight Center Huntsville, AL, United States)
Date Acquired
September 6, 2013
Publication Date
January 1, 1995
Subject Category
Instrumentation And Photography
Report/Patent Number
NAS 1.15:108476
NASA-TM-108476
Accession Number
95N20560
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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