ANALIZA WPŁYWU JAKOŚCI WĘGLA NA EFEKTYWNOŚĆ PRACY KOTŁA FLUIDALNEGO

The factor having a very significant impact on the performance parameters of a fluidized bed boiler is the quality of coal supplied to it. The paper analyzes the work of an power unit based on a supercritical fluidized bed boiler burning various types of energy coals. The purpose of the analysis was to identify the reasons for the reduction of the unit, failure of the fuel giving system and their dependence on the type of culm coal burned. A comparison of the operating parameters of the tested boiler from the selected two months (summer and winter) with production plans was also made. Preliminary analysis shows the dependence of the amount of electricity produced on the type and quality of fuels burned, and thus the degree of implementation of the production plan and production costs. Target determination of the correct composition and quality of fuel mixtures should allow extension of the unit's operating time. It should also increase the amount of electricity produced, reduce the failure of the fuel giving system, thereby improving availability and reducing operating costs. The presented results constitute the first phase of work aimed at determining the impact of the type of coal (its parameters) on the volume and costs of electricity production. An additional purpose of the analysis is also to identify the nodes with the lowest availability in the fuel giving system together with the reasons for this condition.