Integrated adaptive capacity control for a steam turbine powered chiller unit
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United States of America Patent
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-
Feb 12, 2008
Grant Date -
Jul 28, 2005
app pub date -
Dec 17, 2004
filing date -
Jan 23, 2004
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A control system for a steam turbine driven chiller unit is provided. The control system automatically utilizes the full range of the governor, compressor pre-rotation vanes, and hot gas bypass valve capabilities to control the capacity of the chiller and provide anti-surge and override control functions to prevent undesirable operational ranges while maintaining maximum efficiency of operation.
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