Abstract: A shroud of a vane of a turbine is provided. The shroud includes a shroud main body comprising a first wall having a gas-passage face facing a hot gas passage of the turbine and a cooling face facing opposite to the hot gas passage, a shroud edge disposed on a circumference of the shroud main body to surround the shroud main body, the shroud edge comprising a shroud edge passage therein, and an impingement box disposed to face the cooling face of the first wall so as to be spaced apart from the cooling face of the first wall. The impingement box comprises a cooling air inlet to introduce a cooling air from the shroud edge passage into an inside of the impingement box, and an impingement air hole configured to jet the introduced cooling air to the cooling face of the first wall to cool the cooling face of the first wall.

Abstract: In order to enable piping work associated with the duct mounting to the carried out easily, to obtain a large heat radiation area, and to enhance the efficiency of the heat radiation, there is provided a duct mounting structure for a prefabricated curtain wall with an air conditioning system having a frame body for a curtain wall unit formed by left and right hollow vertical member, upper and lower horizontal members, all of which are constituted of metallic extruded section members and which are framed with one another in a rectangular shape, and a hollow horizontal muntin constituted of a metallic extruded section member extending transversely between the left and right hollow vertical member and connected thereto. Respective hollow inside portions of the frame body constructing members and the horizontal muntin are arranged to intercommunicate so as to cause conditioned air to flow through a duct into the hollow inside portions.

Abstract: A prefabricated window unit with an air conditioning system in which cold or hot air is passed through hollow vertical and horizontal members forming a framework of the window unit, and the air is blown out through a blow part formed in the framework toward a room, whereby the room air is conditioned by thermal radiation to or from the framework and by the air blown from the framework. Hollow spaces formed in an upper horizontal member and a waist transom are partitioned into indoor side and outdoor side hollow space portions. In a windowpane frame section consisting of left and right vertical members, the upper horizontal member and the waist transom connected horizontally between the vertical members, are delimited a sealingly enclosed space including a blind by indoor side and outdoor side transparent plates mounted to the outdoor side portion of the windowpane frame section.