GAS TURBINE COMPONENT WITH AN EJECTION CIRCUIT FOR REMOVING DEBRIS FROM COOLING AIR FLOWING THROUGH THE GAS TURBINE COMPONENT OF A GAS TURBINE SYSTEM

A gas turbine (10) component includes an ejection circuit (130) for removing debris (142) from cooling air (120) flowing through a gas turbine (10) component. The gas turbine (10) component includes: an impingement insert (100) and a debris ejection circuit (130). The impingement insert (100), which is disposed within a cavity (102) in the component, includes an end wall (144) and distribution holes (114) for directing cooling air (120) against a wall (134, 144) of the cavity (102). The debris ejection circuit (130) includes: a bypass aperture (132, 232) defined in the end wall, which fluidly couples an interior of the impingement insert (100) and an end section of the cavity (102); and an ejection channel (138, 238), which fluidly couples the end section of the cavity (102) to the wheelspace cavity (140) or the hot gas path (64). A pressure differential between the interior of the impingement insert (100) and the wheelspace cavity (140) or hot gas path (64) directs debris (142) in the cooling air (120) through the bypass aperture (132, 232) and the ejection channel (138, 238).