EXHAUST DUCT FOR A GAS TURBINE ENGINE

Disclosed is an exhaust duct (1) for a gas turbine engine (50), comprising a silencer section (12). At least two plate-shaped silencer baffles (20) are provided inside the silencer section (12). At least one of the plate-shaped silencer baffles is configured as a heat exchange device in that it comprises at least one internal cavity (22) suitable for receiving a heat exchange fluid and leakproof with respect to the interior of the exhaust duct, wherein the at least one internal cavity is fluidly connected to the outside of the exhaust duct at an inlet port and an outlet port (23, 24). This device is useful for recuperating exhaust heat from exhaust gases of the gas turbine engine without the expense and additional space required for providing a heat recovery steam generator. 本发明公开了一种用于气体涡轮引擎(50)的排气管道(1)，该排气管道(1)包括消音器区段(12)。在消音器区段(12)内部提供至少两个板形消音器挡板(20)。板形消音器挡板中的至少一个被构造成作为热交换装置，因为其包括适于接收热交换流体并且相对于排气管道的内部防漏的至少一个内部腔室(22)，其中，至少一个内部腔室在入口端口和出口端口(23，24)处流体地连接到排气管道的外部。该装置可以用于恢复来自气体涡轮引擎的废气的排气热，而无需提供热回收蒸汽发生器所需的费用和额外空间。