Using the Multi-Criteria Model for Optimization of Operational Routes of Thermal Power Plants

Cayo Cid de França Moraes, Plácido Rogério Pinheiro, Ivo Goncalves Rolim, Jose Luis da Silva Costa, Marcos da Silva Elias Junior and Sidney Jose Meireles De Andrade
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Cayo Cid de França Moraes: Porto do Pecém Geração de Energia S/A, Fortaleza 62674-906, Brazil
Plácido Rogério Pinheiro: Graduate Program in Applied Informatics, University of Fortaleza, Fortaleza 60811-905, Brazil
Ivo Goncalves Rolim: Porto do Pecém Geração de Energia S/A, Fortaleza 62674-906, Brazil
Jose Luis da Silva Costa: Porto do Pecém Geração de Energia S/A, Fortaleza 62674-906, Brazil
Marcos da Silva Elias Junior: Porto do Pecém Geração de Energia S/A, Fortaleza 62674-906, Brazil
Sidney Jose Meireles De Andrade: Porto do Pecém Geração de Energia S/A, Fortaleza 62674-906, Brazil

Energies, 2021, vol. 14, issue 12, 1-17

Abstract: The constant problems evidenced in the Brazilian hydrological scenario, where the source of hydraulic potential corresponds to about 63.9% of the energy matrix, coupled with the exponential growth in the supply of renewable energy, corroborates the importance of thermal power generation as the basis of Brazilian’s energy matrix. With the operation of thermal power plants, which characteristically involve a large number of systems, subsystems, and auxiliary equipment, there is a high demand for the use of methodologies for monitoring and controlling processes, analyzing failures, and implementing improvements and actions that increase the reliability and, consequently, reduce the failure rate. In this context, decision-making about prioritizing criticality for operational monitoring of an asset’s components, from the perspective of operation and maintenance planning and based on reliability-centered maintenance (RCM) concepts, can be considered a complex task. Given this, the research seeks to demonstrate how the “Measuring Attractiveness by a Category Based Evaluation Technique (MACBETH)” method can be applied to the development of a multiple criteria model to support decision making in ordering the criticality of systems in operational inspection routes of thermal power plants, to propose new routines execution methodologies, aiming at increasing the productivity of the operation team. According to the results of the judgment matrix, the ordering proposal allowed a strategy for the execution of the current operational routes, redefining criticality, periodicity, routing, and applied resources, maintaining the reliability of the plant. It limits itself to assessing the criticality of the subsystems and monitored points belonging to the boiler system. These are typical of thermoelectric plants classified within the Rankine thermodynamic cycle and represent a significant part of the evaluation proposal.

Keywords: energy; thermal power plant; multi-criteria analysis; operation and maintenance; reliability; MACBETH (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2021
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