Eventos Anais de eventos
ENCIT 2022
19th Brazilian Congress of Thermal Sciences and Engineering
THERMAL MODELS OF DIRECT MOLTEN SALT LINEAR FRESNEL SYSTEM
Submission Author:
Vinicius Rugeri Borges Bonini , SC , Brazil
Co-Authors:
Vinicius Rugeri Borges Bonini, Allan Ricardo Starke, Alexandre Kupka da Silva
Presenter: Vinicius Rugeri Borges Bonini
doi://10.26678/ABCM.ENCIT2022.CIT22-0716
Abstract
Renewable energy sources are essential in reducing our global dependence on fossil fuels. Among the renewable sources, solar energy has high potential, mainly because it allows a decentralized installation and because of the variety of technologies and applications available. Linear Fresnel Collector (LFC) system presents itself as an option, mainly due to its simplicity. Linear Fresnel plants generally operate in one of two different schemes: (i) direct steam generation (DSG), where water is used as the HTF and it is directly converted to steam, and (ii) direct molten salt (DMS), where molten salt is used as HTF. In the latter, water vapor can be produced by within heat exchanger that uses molten salt as hot fluid. Due to its relatively short existence, detailed thermal models of LFC plants operating with molten salts as a heat transfer fluid are not widely available. In this sense, the development of a reliable mathematical model that allows designers to predict and optimize its performance is fundamental to the proliferation of this technology. Therefore, the present work will propose a transient thermal mathematical model for the linear Fresnel system with molten salt as heat transfer fluid, and additionally, assess the main parameters that most influences its behavior.
Keywords
Linear Fresnel Collectors, Molten salt, Detailed simulation, Thermal validation, TRNSYS
