| It's popular for the steam turbine to operate under a low load, but for many years, people couldn't agree with each other on the point of the optimal operation mode for the unit, and up to now, there isn't an authorized conclusion. In this thesis, based on the research of off-design condition theory for the steam turbine regulation stage, it simplifies the calculation of the efficiency. This thesis analyses the limitation when people research the optimal operating mode, and the optimal initial steam pressure calculation model for the nozzle governing steam turbine is founded on the base of detailed calculation for the steam turbine thermal system. The model supplies the base to realize the power plant optimizing control and is useful to direct the optimizing operation for the coal-fired power plant. |
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