Gas turbine with a compressor for air
AssigneeSiemens Aktiengesellschaft
InventorsRobert Bland, Charles Ellis, Peter Tiemann
Life of this patent
Estimating the term…
Abstract
In gas turbines, compressed air is supplied via an air duct to combustion chambers and is heated there. Pressure losses in the air duct should be minimized in order to ensure good overall efficiency. This is achieved by the compressed air flowing with approximately constant velocity in the air duct from the compressor to the inlet into the combustion chamber. This is supported by the effective cross section of the air duct being almost constant over this distance.
Claims37
A gas turbine, comprising:
- a plurality of combustion chambers, connected in parallel with respect to flow;
- and
- a compressor for air, wherein the air is heated in at least one of the combustion chambers before it flows to a gas duct in the gas turbine via a transfer duct, and wherein the compressed air flows with approximately constant velocity in an air duct, over a distance from an outlet of the compressor to an inlet into at least one of the combustion chambers.
A gas turbine, comprising:
- a plurality of combustion chambers, connected in parallel with respect to the airflow;
- and
- a compressor for air, wherein the compressed air flows with approximately constant velocity in an air duct, from an outlet of the compressor to an inlet into at least one of the combustion chambers, by which the compressed air is heated prior to entry.
A method of operating a gas turbine, comprising:
- heating compressed air in at least one of a plurality of combustion chambers, connected in parallel with respect to flow;
- and
- compressing air in a compressor, wherein the compressed air flows with approximately constant velocity in an air duct, over a distance from an outlet of the compressor to an inlet into at least one of the combustion chambers.
The method of clam 35, further comprising:
- enforcing, via the air duct, a change in direction of more than 90° on air flowing in a region of the transfer duct, wherein a deflector is provided in the air duct in this region only.
Dependencies are inferred from the claim text.