DEVICE AND METHOD FOR GAS TURBINE UNLOCKING AFTER SHUT DOWN

摘要

An aeroderivative gas turbine (102) is disclosed, comprising: an air intake plenum (103); a compressor with a compressor air intake in fluid communication with the air intake plenum(103); a combustor; a high pressure turbine; a power turbine. A forced air-stream generator (111) is arranged in fluid communication with the air intake plenum (103). A shutter arrangement (123) is provided in a combustion-air flow path (105), arranged and controlled to close the combustion-air flow path for pressurizing said air intake plenum by means of the forced air-stream generator (111) to a pressure sufficient to cause pressurized air to flow through the aeroderivative air turbine (102).