Method of operating a gas turbine
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United States of America Patent
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N/A
Issued Date -
Dec 2, 2004
app pub date -
Jul 9, 2004
filing date -
Apr 26, 2001
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A micro turbine (10) has a recuperator (20). During startup, an alternator (26) acts as a motor to turn the turbine rotor (32) and compressor rotor (34) of gas turbine (40). The speed of the gas turbine (40) and a fuel control valve (42) are controlled in order to prevent the rate of change of temperature at a gas turbine exhaust sensor (74) and/or a recuperator sensor (80) from exceeding a predetermined value in order to reduce thermal shock on the recuperator during startup. Controlled shutdown sequences are also provided.
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