Steam turbine startup support system

A steam turbine startup support system to support startup performed according to a startup transition pattern in a steam turbine where a power generator is driven by rotating a turbine rotor by steam, the steam turbine startup support system comprising:

• a startup transition pattern recording device to record various startup transition patterns;
• a parameter input device in which there are input a unit fuel cost of fuel consumed to generate the steam, an electricity selling price of electric power which is generated by the driving of the power generator and sold, a rotor price of the turbine rotor, a fuel consumption rate of the fuel, an availability of the steam turbine, a rotor lifetime limit value of the turbine rotor, and an output target value of the electric power which is output by the driving of the power generator as parameters;
• a parameter recording device to record the parameters input to the parameter input device;
• a rotor lifetime recording device to record information relating to a rotor lifetime of the turbine rotor;
• an economic efficiency evaluation device to perform economic efficiency evaluation regarding the various startup transition patterns recorded in the startup transition pattern recording device based on the parameters recorded in the parameter recording device and the information relating to the rotor lifetime recorded in the rotor lifetime recording device;
• and
• a screen display device to display a result of the economic efficiency evaluation performed by the economic efficiency evaluation device.