Mathematical modeling of a system composed of parabolic trough solar collectors integrated with a hydraulic energy storage system
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Date
2020
Authors
Mendoza Castellanos, Luis Sebastián
Galindo Noguera, Ana Lisbeth
Gutiérrez Velásquez, Elkin I.
Carrillo Caballero, Gaylord Enrique
Silva Lora, Electo Eduardo
Melian Cobas, Vladimir Rafael
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Abstract
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.
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Mendoza Castellanos, L., Galindo Noguera, A., Gutiérrez Velásquez, E., Caballero, G., Silva Lora, E. and Melian Cobas, V., 2020. Mathematical modeling of a system composed of parabolic trough solar collectors integrated with a hydraulic energy storage system. Energy, 208, p.118255.