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Techno-Economic Feasibility Analysis of a Diesel/ Organic Rankine cycle system for Distributed Generation
Análisis de Viabilidad Técnico-Económica de un Sistema de Ciclo Diesel/Rankine Orgánico para la Generación Distribuida
DOI:
https://doi.org/10.15446/sicel.v11.109039Palabras clave:
Diesel generator, Electrical Efficiency, Energy cost, Organic Rankine Cycle, Specific fuel consumption (en)Ciclo Orgánico Rankine, consumo especifico de combustible, costo de energía, eficiencia eléctrica, generador diése (es)
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he use of an Organic Rankine Cycle (ORC) for exhaust gas heat recovery from diesel generator sets allows the production of additional power, and thus supplies an additional energy demand in isolated locations. An energy model of the diesel generator was developed, which allows the determination of parameters such as the specific heat, mass flow rate, and exhaust gas temperature required for system design. R245fa was used as the ORC working fluid. A comparative analysis was performed between the use of conventional diesel generators and the diesel-ORC system in the case of a non-interconnected region in Brazil in terms of energy cost, specific fuel consumption, and electrical efficiency. The results show that a specific fuel consumption of 0.271 L/kWh is obtained with the diesel generator system, while that of the diesel-ORC is 0.248 L/kWh. The energy cost of the diesel-ORC system was 15.56 % lower than that of the diesel generator system.
El uso del Ciclo Orgánico de Rankine (ORC) en la recuperación de calor de los gases de escape de los generadores diésel permite generar energía adicional en zonas aisladas. Se desarrolló un modelo energético del generador diésel para determinar parámetros como el calor específico, el caudal de masa y la temperatura de los gases de escape necesarios para el diseño del sistema. Utilizando el fluido R245fa en el ORC, se realizó un análisis comparativo entre los generadores diésel convencionales y el sistema diésel-ORC en una región no interconectada de Brasil. Los resultados muestran que se logra un consumo específico de combustible de 0.271 L/kWh con el sistema de generador diésel, mientras que con el sistema diésel-ORC es de 0.248 L/kWh. El costo de energía con el sistema diésel-ORC resultó ser un 15.56 % más económico en comparación con el sistema de generador diésel.
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Derechos de autor 2023 Simposio Internacional sobre la Calidad de la Energía Eléctrica - SICEL
Esta obra está bajo una licencia internacional Creative Commons Atribución 4.0.
