Method for increasing the aerodynamic stability of a working fluid flow of a compressor
AssigneeALSTOM Technology Ltd
InventorSasha Savic
Life of this patent
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Abstract
The present disclosure relates to a method for improving aerdynamic stability of a working fluid flow through a compressor of a turbomachine, in particular through a compressor of gas turbine used for power production, particularly against rapidly changing aero speed of the compressor. The method comprises to introduce a first water mass flow to the working fluid flow of the compressor. Furthermore, the disclosure relates to a turbomachine, in particular a gas turbine, which can be driven according to the above method.
Claims34
A method for increasing the aerodynamic stability of a working fluid flow of a compressor of a turbomachine in relation to changing aerospeeds of the compressor, comprising:
- determining a total water mass flow based on a predetermined surge margin;
- admixing a first water mass flow with the working fluid flow of the compressor to control the aerodynamic stability of the working fluid flow of the compressor and the surge margin, the first water mass flow being determined based on compressor operating conditions;
- admixing a second water mass flow with the working fluid flow downstream of the compressor in a region of a combustion chamber of the turbomachine;
- and
- reducing the second water mass flow, at least by a portion, at a beginning of the admixing of the first water mass flow with the working fluid flow to control the surge margin.
A method for increasing the aerodynamic stability of a working fluid flow of a compressor of a turbomachine in relation to changing aerospeeds of the compressor, comprising:
- determining a total water mass flow based on a predetermined surge margin;
- admixing a first water mass flow with the working fluid flow of the compressor to control the aerodynamic stability of the working fluid flow of the compressor and the surge margin, the first water mass flow being determined based on compressor operating conditions;
- admixing a second water mass flow with the working fluid flow downstream of the compressor in a region of a combustion chamber of the turbomachine;
- reducing the second water mass flow, at least by a portion, at a beginning of the admixing of the first water mass flow with the working fluid flow;
- and
- using the reduced portion of the second water mass flow completely as the first water mass flow to admix with the working fluid to control the surge margin.
Dependencies are inferred from the claim text.