Method and apparatus for controlling modulated cooling of a gas turbine component

A gas turbine component control modulation cooling system comprising:

• a target component temperature determination unit configured to determine a target component temperature at which the gas turbine component can be maintained without the gas turbine component experiencing a failure over the course of an indicated life of the gas turbine component;
• a scheduling unit configured to schedule a cooling air value to the target component temperature;
• and
• a cooling air determination unit configured to determine one or more of a demanded cooling air temperature and a demanded cooling air mass flow rate based on the scheduled cooling air value.

A method of modulating the cooling of a gas turbine engine component, comprising:

• determining a target component temperature value of a gas turbine engine component based on a desired life of the gas turbine engine component;
• calculating one or more of a demanded cooling air temperature and a demanded cooling air mass flow rate based on the target component temperature value and one or more heat transfer parameters;
• and
• controlling modulation of one or more of the cooling air temperature and the cooling air mass flow rate according to respectively the one or more of the demanded cooling air temperature and the demanded cooling air mass flow rate to maintain the target component temperature value.