ACTIVE CONTROL OF COMPRESSOR EXTRACTION FLOWS USED TO COOL A TURBINE EXHAUST FRAME

A gas turbine includes at least one combustor and an exhaust frame; a compressor adapted to supply air to the combustor and to supply bleed air to the exhaust frame. A cooling air supply duct is arranged to supply ambient air to the exhaust frame and at least one ejector is. arranged to supply the b...

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Bibliographische Detailangaben
Hauptverfasser:	KASIBHOTLA RAVI SHANKAR VENKATA, GANTI SANYASWARA RAO
Format:	Patent
Sprache:	eng
Schlagworte:	AIR INTAKES FOR JET-PROPULSION PLANTS BLASTING COMBUSTION ENGINES CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS ENGINE PLANTS IN GENERAL GAS-TURBINE PLANTS HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS INDEXING SCHEME FOR ASPECTS RELATING TONON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES ORJET-PROPULSION PLANTS INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUSSUBCLASSES OF CLASSES F01-F04 LIGHTING MACHINES OR ENGINES IN GENERAL MECHANICAL ENGINEERING NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES STEAM ENGINES WEAPONS
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Beschreibung
Zusammenfassung:	A gas turbine includes at least one combustor and an exhaust frame; a compressor adapted to supply air to the combustor and to supply bleed air to the exhaust frame. A cooling air supply duct is arranged to supply ambient air to the exhaust frame and at least one ejector is. arranged to supply the bleed air to the cooling air supply duct upstream of the exhaust frame. A control valve is configured to control the supply of compressor bleed air to the cooling air supply duct and to the exhaust frame as a function of turbine exhaust temperature and/or turbine load conditions and cooling requirements at the various turbine load conditions.