A combustion section for a gas turbine engine including an inner casing comprising a first material defining an inner diameter of a pressure vessel and a first heat transfer coefficient. A second material is extended at least partially over an outer diameter of the first material. The second material is disposed radially between the first material and a combustor liner. The second material defines a second heat transfer coefficient less than the first heat transfer coefficient.

A combustion section for a gas turbine engine including an inner casing comprising a first material defining an inner diameter of a pressure vessel and a first heat transfer coefficient. A second material is extended at least partially over an outer diameter of the first material. The second material is disposed radially between the first material and a combustor liner. The second material defines a second heat transfer coefficient less than the first heat transfer coefficient.

It is described a hybrid device for generating clean electric power (10) comprising a wind power generation module (11) and at least one solar power generation module (12), said wind power generation module (11) formed by a vertical generator (13), and said solar energy generation module (12) formed by at least one solar energy capturing plate (14), the vertical generator (13) of the wind power generation module (11) comprises a plurality of blades (15) axially and concentrically disposed relative to a central shaft (111) of the vertical generator (13), said blades (15) being manufactured from polyethylene terephthalate and arranged in the central shaft (111) at an offset angle between each other, and the wind power generation module (11) receives in its upper portion at least one solar energy generation module (12) in order to provide electric power cogeneration, said generation module (12) comprising at least one solar energy capturing plate (14) supported by a hydraulic mechanism that moves the solar energy capturing plate (14) so as to position it in more favorable directions for capturing solar energy throughout the day.