Eventos Anais de eventos
COBEM 2021
26th International Congress of Mechanical Engineering
EXERGY ANALYSIS OF THE ELECTRICITY GENERATION PROCESS IN THE REUSE OF BLAST FURNACE GASES IN A STEELMAKING COMPANY
Submission Author:
Pedro Goulart , MG
Co-Authors:
Lucas Lemos, Pedro Goulart, Reginaldo Gonçalves Leão Junior , Ricardo Carpio, Moisés Teles Fernandes
Presenter: Administrador ABCM
doi://10.26678/ABCM.COBEM2021.COB2021-1887
Abstract
In the present work, using the tools and concepts of energy and exergy in a steelmaking process, a detailed study was carried out on the electricity generation system (Cogeneration) in a steelmaking company not integrated with a thermal power plant, analyzing the production process of a steel industry located in Minas Gerais, a producer of pig iron that commercializes in the domestic and foreign markets, which continually seeks to increase its competitiveness in the steel sector and become an ecologically sustainable company. The intention is to propose a better use of blast furnace gases (BFG) generated in the production of pig iron. Knowing that the flow of BFG, which serves as fuel, in the combustion process in the boiler, does not have a regular or constant flow. The air/fuel ratio must be monitored almost in real time, in order to obtain the greatest power in the turbo-generator set of the steam system. The simulation for different flow rates of the BFG, together with the energetic and exergetic analysis carried out on each equipment of the thermal power plant, led to verify the maximum and minimum generation of the power system, with the premise of avoiding the purchase of electricity from the energy concessionaire, which increases the cost and production of pig iron.
Keywords
Steel Making Company, cogeneration, Blast Furnace Gases, energy, exergy
