Fuel gas cooling system for combustion basket spring clip seal support

A fuel gas cooling system for a combustion basket spring clip seal support, comprising:

• a combustor basket;
• at least one transition section that extends from a downstream, terminal end of the combustor basket, wherein the at least one transition section upstream end is positioned upstream from the downstream, terminal end of the combustor basket such that at least a portion of the at least one transition section axially overlaps the combustor basket;
• at least one spring clip positioned between the combustor basket and the at least one transition section such that the at least one spring clip seals at least a portion of a circumferential gap between the combustor basket and the at least one transition section;
• at least one fuel gas supply channel having at least one exhaust orifice proximate to the terminal end of the combustor basket;
• at least one fuel gas plenum coupled to the at least one fuel gas channel for supplying fuel gas to the at least one fuel gas supply channel;
• wherein the at least one fuel gas plenum is a circumferential plenum;
• and
• wherein the at least one fuel gas supply channel comprises an axially extending plenum positioned radially between the at least one spring clip and the combustor basket;
• and
• at least one fuel gas supply conduit in fluid communication with the at least one fuel as plenum.

A fuel gas cooling system for a combustion basket spring clip seal support, comprising:

• a combustor basket;
• at least one transition section that extends from a downstream, terminal end of the combustor basket, wherein the at least one transition section upstream end is positioned upstream from the downstream, terminal end of the combustor basket such that at least a portion of the at least one transition section overlaps the combustor basket;
• at least one spring clip positioned between the combustor basket and the at least one transition section such that the at least one spring clip seals at least a portion of a gap between the combustor basket and the at least one transition section;
• at least one fuel gas supply channel having at least one exhaust orifice proximate to the terminal end of the combustor basket;
• and
• at least one fuel gas plenum coupled to the at least one fuel gas channel for supplying fuel gas to the at least one fuel gas supply channel;
• wherein the at least one fuel gas supply channel comprises an axially extending plenum positioned radially between the at least one spring clip and the combustor basket;
• at least one fuel gas supply conduit in fluid communication with the at least one fuel gas supply channel;
• at least one air orifice in a wall forming the at least one fuel gas supply channel for supplying air to the fuel gas flowing through the at least one fuel gas supply channel;
• at least one metered cooling orifice supplying cooling air immediately downstream of an exhaust outlet of the at least one fuel gas supply channel;
• and
• at least one heat shield positioned downstream from an exhaust outlet of the at least one fuel gas supply channel, wherein the heat shield modifies combustion at the exhaust outlet.