CFD MODELING OF THE COMBUSTION OF UKRAINIAN AND BIOMASS IN A FLARE BOILER UNIT TPP-210a

To increase the amount of energy produced with the bioresources use is the most important step in environmentally friendly electricity production. An analysis of the computer modeling results of pellet and biomass burning processes in the furnace chamber of the TPP-210a steam boiler was carried out. The scientific novelty of the work consists of determining the possibility and perspective of using non-design types of fuel, such as gas coal of domestic production and solid biomass (instead of anthracite), as a raw material base of existing boiler units. On the basis of this analysis, it was determined that the model allows to quite accurately assess the aerodynamic structure of the flow in the burners and the boiler furnace. Such a precise assessment is possible if the thermophysical properties of the burning fuel are accurately specified. The average integral temperature of the combustion products in the fuel during the gas coal burning is higher than while burning other fuels in the form of pellets from the sunflower husk and from biomass of spring wheat and winter wheat. The biomass used in the modeling has a similar chemical composition; therefore, the temperature distributions in the case of their burning are also similar. Subsequently, the results of the research can be used to increase the efficiency of the combustion process when burning biofuel and to modernize fuel-burning systems of low-power boilers of industrial and municipal thermal engineering, the housing-and-utilities sector, etc. © 2024 by Begell House, Inc.