Proposal of a System to Identify Failures and Evaluate the Efficiency of Internal Combustion Engines of Thermal Power Plants

Autor: Lilia Carneiro Ramos, Frederico de Oliveira Assuncao, Helcio Francisco Villa-Nova, Germano Lambert-Torres, Erik Leandro Bonaldi, Levy Ely de Lacerda de Oliveira, Wilson Cesar Sant’Ana, Ronny Francis Ribeiro Junior, Carlos Eduardo Teixeira, Paulo Germano Pinto de Medeiros
Jazyk: angličtina
Rok vydání: 2022
Předmět:
Zdroj: Energies, Vol 15, Iss 23, p 9047 (2022)
Druh dokumentu: article
ISSN: 15239047
1996-1073
DOI: 10.3390/en15239047
Popis: Thermoelectric plants are one of the main forms of energy generation in the world, being the second main source of generation in Brazil. However, with rising fuel costs and greater concern for the environment, controlling the efficiency levels of these plants has become critical. This work presents a system to identify failures and evaluate the efficiency of internal combustion engines used in thermal power plants. To assess efficiency, the developed system monitors subsystem losses (such as cooling, lubrication, turbocharger, etc.). In addition, sensors for cylinder pressure and instantaneous speed were installed and comprise an online monitoring system for the pressure condition of each cylinder of the engines. All this is combined into a supervisory system that presents the Sankey diagram of the engine as its main information online and remotely. To validate the system, experiments were carried out in a controlled configuration (where faults were purposely inserted) and in a Brazilian thermal power plant. The results show that by using in-cylinder pressure and the WOIS database, it was possible to detect the presence of a fault as well as pinpoint its location.
Databáze: Directory of Open Access Journals
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