Investigation of Thermal Economicity of the Turbine During Operation of the Energy Block in the Modes With Variable Load

The maneuverable characteristics of the energy block with the K-1000-60/1500 turbine upon transition to regulation of power by the method of sliding pressure for inclusion the nuclear power plant (NPP) into operation in the variable schedule of electrical loads are determined. The methodical provisions for assessment of indexes of thermal economicity of the block upon transition to sliding pressure are developed, namely, the method of calculation of relative changes in specific heat and fuel consumption by the turbine. Based on the calculation of actual annual change in the heat and fuel consumption by the block, the model for definition of annual economicity of transition to regulation of power by the method of SP in the modes with variable load is received. (paper)