Improvement of the Reliability of Evaluation of the Energy Indices of a Power Unit Using the Least Squares Adjustment Method

摘要

The paper deals with the application of the least squares adjustment method in order to improve of reliability of the energy measurements of the power unit IV in the power-generating plant Opole. The application of the least squares adjustment method has made it possible to complete the substance and energy balances of the boiler, the turbine, condenser, regenerating heat exchangers and the whole power unit. The verified results of measurements and calculation were used to calculate the thermal efficiency of the power unit, determine the energy indices of the power unit and the unreliability of the calculations.