Abstract:
An air inlet plenum for a gas turbine engine is described. The air inlet plenum (3) comprises a hollow body (17) having an air inlet aperture (19) and an air outlet aperture (21) arranged and configured for connection to the gas turbine engine (6). The air inlet plenum (3) comprises at least one removable portion (23L, 23R), which is removable from the hollow body (17) when the air inlet plenum (3) is connected to a gas turbine engine (6). The air inlet plenum is at least partly made of fiber-reinforced plastic.
Abstract:
A gas turbine is described, comprising a turbine package (101) housing a compressor (105; 107), a high pressure turbine (109) and a power turbine (111). The gas turbine comprises a ventilation system for cooling the interior of the turbine package, as well as a lubricating oil circuit. The lubricating oil circuit comprises a lubricating oil pump (177), a lubricating oil tank (173), a primary lubricating oil cooler (189). A secondary lubricating oil cooler (163) is arranged in the turbine package (101), in a position lower than a rotary shaft (115) of the gas turbine. The ventilation system is arranged and designed such that at least part of a package cooling airflow contacts the secondary lubricating oil cooler (163) to remove heat from the lubricating oil circulating in the secondary lubricating oil cooler.
Abstract:
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).