Provided is a combustor assembly. The combust assembly includes: a plurality of swirlers through which a first fluid that is a part of a fluid discharged from a compressor passes; a base portion, in which the plurality of swirlers are provided, comprising a first through hole formed between one swirler and another swirler from among the plurality of swirlers so that a second fluid that is another part of the fluid discharged from the compressor and different from the first fluid passes through the first through hole; and a deflector provided in the base portion so as to face the first through hole for changing a moving direction of the second fluid.

A blade outer air seal segment assembly includes a blade outer air seal segment configured to connect with an adjacent blade outer air seal segment to form part of a rotor shroud. A cooling channel is disposed in the first turbine blade outer air seal segment. The cooling channel extends at least partially between a first circumferential end portion and a second circumferential end portion. At least one inlet aperture provides a cooling airflow to the cooling channel. A series of trip strips in the cooling channel cause turbulence in the cooling airflow. The trip strips include at least one chevron shaped trip strip having a first and second leg joined at an apex arranged adjacent the inlet aperture. The trip strips also include at least one trip strip having a single skewed line.

A component for use in a turbine engine includes a fore edge connected to an aft edge via a first surface and a second surface. Multiple cooling passages are defined within the turbine engine component. A first skin core passage is defined immediately adjacent one of the first surface and the second surface. At least 80% of coolant entering the first skin core passage is expelled from the turbine engine component at the aft edge.

The present invention provides methods and system for power generation using a high efficiency combustor in combination with a CO.sub.2 circulating fluid. The methods and systems advantageously can make use of a low pressure ratio power turbine and an economizer heat exchanger in specific embodiments. Additional low grade heat from an external source can be used to provide part of an amount of heat needed for heating the recycle CO.sub.2 circulating fluid. Fuel derived CO.sub.2 can be captured and delivered at pipeline pressure. Other impurities can be captured.

One exemplary embodiment of this disclosure relates to a component for a gas turbine engine. The component includes a baffle provided in an internal cavity of the component. The baffle includes a wall having an orifice therethrough, and the baffle further includes a lobe extending from the wall and at least partially covering the orifice.

A combustor has a structure enabling selective control of the amount of air supplied to the liner and the transition piece and includes a liner having one end connected to a fuel injector, the liner comprising an inner liner surrounded by an outer liner having a first opening that is elongated in a circumferential direction of the outer liner and is configured to introduce cooling air into an annular space between the inner liner and the outer liner; a liner sliding cover configured to adjust an opening degree of the first opening; and a transition piece connected at one end to the other end of the liner and connected to a turbine at the other end, the transition piece having an effusion hole configured to supply cooling air to a combustion chamber, the effusion hole having an opening area that is less than the opening degree of the first opening.

A turbine blade ring segment includes an inner panel mounted to an inner surface of a turbine casing, the inner panel including a plurality of flow holes for supplying cooling air from an outside of the turbine casing; and an outer panel disposed on one surface of the inner panel, the outer panel including a plurality of air passages communicating with the flow holes formed in the inner panel. The passages include a first flow passage formed in a central portion of the outer panel to guide the supplied cooling air in a flow direction of the combustion gas, a second flow passage formed in the outer panel separately from the first flow passage to guide the supplied cooling air in the flow direction of the combustion gas, and a third flow passage communicating with the second flow passage to feed the supplied cooling air to the second flow passage.

A combustor may include a combustor shell, a particle collection panel, and a combustor panel. The combustor shell may define a plurality of first impingement holes, the particle collection panel may include a plurality of particle collection chambers and may define a plurality of second impingement holes, and the combustor panel may define a plurality of effusion holes. The particle collection panel may be disposed inward of the combustor shell and the combustor panel may be disposed inward of the particle collection panel. Each particle collection chamber may have a closed inward end and an opening defined in an outward end. The particle collection chambers may be configured to entrap particulates.

A gas turbine engine component comprises a shroud, a U-channel, an internal cooling air passage and a U-channel cooling hole. The shroud comprises a forward face, an aft face, a first side face and a second side face. The U-channel is disposed in the aft face of the shroud. A gas path surface connects the forward face, aft face, first side face and second side face. A cooled surface connects the forward face, aft face, first side face and second side face opposite the gas path face. The internal cooling air passage extends through the shroud. The U-channel cooling hole extends into the first side face of the shroud adjacent the U-channel to intersect the internal cooling passage.

The present invention provides methods and system for power generation using a high efficiency combustor in combination with a CO.sub.2 circulating fluid. The methods and systems advantageously can make use of a low pressure ratio power turbine and an economizer heat exchanger in specific embodiments. Additional low grade heat from an external source can be used to provide part of an amount of heat needed for heating the recycle CO.sub.2 circulating fluid. Fuel derived CO.sub.2 can be captured and delivered at pipeline pressure. Other impurities can be captured.