Gas turbine driven electric power system with constant output through a full range of ambient conditions
OwnerJian Y. Xia, Adam D. Plant +2inventors
InventorsJian Y. Xia, Adam D. Plant, Hans-Juergen Kiesow, Martin Ferdinand Urban
Life of this patent
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Abstract
A gas turbine compressor (28A, 28B) sized to support respective maximum design points of other gas turbine driven electrical power generating system components (30, 32, 38, 46, 58, 68) during a least dense ambient condition within a design range of ambient conditions. A variable inlet (72) on the compressor automatically modulates to modulate airflow to supply just the amount needed to produce a rated output of the system throughout the full design range of ambient conditions. This safely and economically maintains rated power system output (94) over a full range of ambient conditions.
Claims17
A gas turbine driven electric power generating system characterized by a compressor of the system being operative to provide a mass flow of compressed air to a combustor of the system sufficient to support operation of the combustor at a maximum design point throughout a full design range of ambient atmospheric conditions.
A gas turbine driven electrical power generating system comprising:
- a combustor, a gas turbine, and an electrical generator of the system all being sized to operate at respective maximum design points when the system is producing a rated electrical power output;
- and
- a compressor of the system sized to provide sufficient air to the combustor to support operation of the combustor, the gas turbine, and the electrical generator at their respective maximum design points throughout a design range of ambient atmospheric conditions.
A method of configuring a gas turbine engine comprising:
- matching a gas turbine to a combustor to produce a rated power output of a gas turbine engine at a maximum design capacity of both the combustor and the gas turbine at a reference ambient air condition;
- sizing a compressor to provide sufficient compressed air to the combustor to produce the rated power output over a range of ambient conditions including a least dense expected ambient air condition;
- combining the compressor, the combustor, and the gas turbine;
- providing control logic and a control mechanism that adjusts mass airflow through the compressor in response to changing ambient air conditions to produce the rated power output over the range of ambient conditions without an afterburner.
Dependencies are inferred from the claim text.