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ENCIT 2020
18th Brazilian Congress of Thermal Sciences and Engineering
DYNAMIC MODELING OF A THERMAL STORAGE SYSTEM
Submission Author:
Danielle Paixão , BA , Brazil
Co-Authors:
Danielle Paixão, Vanessa Gomes, Diego Pessoa da Silva Cunha, Karen Pontes
Presenter: Danielle Paixão
doi://10.26678/ABCM.ENCIT2020.CIT20-0435
Abstract
IIn search of sustainable development, renewable sources are increasingly used in the production of clean energy. Solar energy is an example of renewable energy which is abundant in the ambient. Systems that use solar energy can have their energy stored in thermal energy storage (TES) system which keeps the heat of the working fluid for later use in processes such as: desalination; energy cycles; solar oven and others. Due to the variability of solar energy and seeking to minimize this effect in the process, it is important to understand the dynamics of the system as well as to identify how the manipulated variables and the disturbances influence the heat transfers. The objective of this work is to develop a dynamic model for the thermal energy storage system and solar collector of a thermo solar system in order to analyze how the time-dependent profile of the main input variables, as flow rate through collectors, influence the downstream process. The phenomenological model was validated with data from the literature and the results show that the system has a high overall efficiency and that a time-dependent flow rate through collector is required to ensure the temperature required by the downstream process.
Keywords
Thermal Energy Storage, Solar Collector, Dynamic modeling;, Solar Energy
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