A method for calibrating the calorific value of fuel for improving the accuracy of estimation of the efficiency of the thermal power plant a medium recording the calorific value correction program of the fuel

摘要

The present invention relates to a method for correcting the calorific value of a fuel to increase the accuracy of estimation of efficiency of a thermal power plant and a medium recording a calorific value correction program for a fuel. The method for correcting the calorific value of a fuel as a data correction technology for correcting an error in the measured value of a meter corrects the calorific value of the fuel in order to increase the accuracy of estimation of efficiency of the thermal power plant having a boiler, a feed water heater, a degassifier, a turbine, and a condenser. The method performs optimization correction by using aa as an objective function, wherein Fmi is a flow rate measurement value of stream i, Fdi is a correction value for the flow rate measurement value of stream i, wi is an error correction specific-gravity factor of stream i, n is the total number of flow rate measurement values, LHV is a low heating value, LHVm is a calorific value experiment value, LHVd is a calorific value correction value, and wLHV is a calorific value error correction specific-gravity factor. The method performs optimization determining Fdi and LHVd so that the objective function Φ; is minimum, thereby being effective in removing in real time a fuel calorific value error for directly analyzing samples and accurately monitors power generation efficiency, thereby quickly detecting a reduction in the power generation efficiency and solving the same in time.