TRANSIENT MODEL FOR THERMAL STORAGE IN CONCENTRATED SOLAR ENERGY SYSTEMS
DOI:
https://doi.org/10.59627/cbens.2016.1899Keywords:
Thermal energy storage, solar power energy, two tanks storage systemAbstract
Solar energy is an inexhaustible clean source of energy, however the capacity factor of these plants are low if compared to other sources, such as hydro and nuclear. Among the renewables, the solar thermal is able to retain the excess of energy in thermal storage systems and thus use this energy in periods of cloudiness and after dusk, when the incidence of sunlights are not enough to generate power. This work attempts to simulate a two-tanks sensible heat thermal storage system using the molten salt as heat transfer fluid, which is the most used in solar power plants. The analysis consists of a transient simulation of the heat exchange mechanisms in the storage tanks fully charged and discharged. The simulation is performed for the climatic data of the Brazilian semi-arid region (Petrolina - PE) and the heat loss results are compared to actual situations available in the literature.
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