TY - JOUR
TI - Possibilities of steam boiler process optimization in the TPP Ugljevik
AU - Stupar Goran M.
AU - Tucaković Dragan R
AU - Stamenković Ognjen S
AU - Petrović Luka
AU - Vujičić Borivoje
AU - Novaković Žarko
AU - Milanović Željko
JN - Thermal Science
PY - 2023
VL - 27
IS - 1
SP - 133
EP - 149
PT - Article
AB - The paper presents a technical solution for modernization with the aim of  increasing the efficiency of the steam boiler of TPP Ugljevik, which  implies the reorganization of the combustion system. More efficient  operation of the furnace can be achieved by replacing the existing burners,  reducing the number of burner levels as well as the organization of  tangential combustion. The flame formed in the shape of a tube around the  two central combustion vortices provides a larger amount of heat transferred  to the combustion furnace, less fouling of its screen walls and thus a lower  average temperature of the combustion products at its outlet. As the chosen  reorganization affects the increase of the temperature of the superheated  steam and the decrease of the temperature of the reheated steam, it has been  proposed to reduce the area of the semi-irradiated superheater and increase  the area of the second reheater. Taking into consideration that the  reorganization of the combustion system may lead to the change of the  thermal load of the evaporator located in the furnace, the paper presents  the work of the steam boiler operation under new operating conditions. Used  calculation system enables reliable prediction of operating characteristics  of the steam boiler in new operating conditions of combustion, and its  application helps assess the quality of the boiler in terms of how  effective, efficient, safe and environmentally friendly its operating mode  is. In this way, it is possible to form a comprehensive description of the  operating mode of the steam boiler.