Mathematical modeling of a system composed of parabolic trough solar collectors integrated with a hydraulic energy storage system

In this work we propose to model a 7.5 kWe power generation system, implementing a Parabolic Trough Collector system, coupled to an Organic Rankine Cycle (PTC/ORC) and a bladder-type hydraulic accumulator system. The purpose of the research is to evaluate the behavior of the hydraulic accumulation system made up of 22 bladder-type accumulators of 60 L each, which operates as a backup to provide continuity in the generation of electrical energy. The model allows evaluating and analyzing the loading and unloading behavior of a hydraulic accumulator system, for intermittent conditions of solar irradiation, wind speed, and ambient temperature. The results show that for a power deficit in the system of 0.5 kWe, the compensation time for the generation of electrical energy would be 1 h and 51 min and for a deficit of 7 kWe, the compensation time would be 4 min. The model was designed as a convenient tool for dimensioning and integrating various energy sources in hydraulic accumulation systems and will allow analyzing the behavior of hydraulic accumulators as an energy backup system.

• Autores: Mendoza Castellanos, Luis Sebastián; Galindo Noguera, Ana Lisbeth; Gutiérrez Velásquez, Elkin I.; Carrillo Caballero, Gaylord Enrique; Silva Lora, Electo Eduardo; Melian Cobas, Vladimir Rafael
• Fecha de publicación: 2020
• Institución: Universidad Tecnológica de Bolívar
• Repositorio: Repositorio Institucional UTB
• Idioma: eng
• OAI Identifier: oai:repositorio.utb.edu.co:20.500.12585/9509
• Acceso en línea: https://hdl.handle.net/20.500.12585/9509; https://www.sciencedirect.com/science/article/abs/pii/S0360544220313621
• Palabra clave: Hybrid power generation; Hydraulic accumulator system; Parabolic trough collector system; Hydraulic motor; Organic rankine cycle
• Rights: closedAccess
• License: http://purl.org/coar/access_right/c_14cb