System for generating steam and for providing cooled combustion gas to a secondary gas turbine combustor
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United States of America Patent
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Jan 23, 2018
Grant Date -
Jun 15, 2017
app pub date -
Dec 15, 2015
filing date -
Dec 15, 2015
priority date (Note) -
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Abstract
A power plant includes a first gas turbine and a second gas turbine. The first gas turbine includes a turbine extraction port that is in fluid communication with a hot gas path of the turbine and an exhaust duct that receives exhaust gas from the turbine outlet. The power plant further includes a first gas cooler having a primary inlet fluidly coupled to the turbine extraction port, a secondary inlet fluidly coupled to a coolant supply system and an outlet in fluid communication with the exhaust duct. The first gas cooler provides a cooled combustion gas to the exhaust duct which mixes with the exhaust gas to provide an exhaust gas mixture to a first heat exchanger downstream from the exhaust duct. The first gas cooler is also in fluid communication with a combustor of the second gas turbine.
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