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Circuito termo-hidráulico equivalente de un sistema de almacenamiento térmico en sales fundidas con generador de vapor integrado en circulación natural
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Abstract(s)
RESUMEN: En este trabajo se propone el uso de la correlación de Swapnalee y Vijayan, apta para NCLs (del inglés Natural Circulation Loops) monofásicos de diámetro constante, 𝑑𝑑, en estado estacionario cuyo régimen de flujo sea el de transición, para el cálculo del caudal en circulación en un diseño novedoso de NCL consistente en un tanque de almacenamiento térmico en sales fundidas con un generador de vapor integrado. El sistema, conocido como TES-SG (Thermal Energy Storage with integrated Steam Generator), ya ha sido estudiado previamente a escala de prototipo y en modo descarga, tanto desde el punto de vista experimental como numérico, lo que ha permitido aplicar la metodología de Vijayan para calcular los números adimensionales necesarios para resolver el problema.
ABSTRACT: This work proposes the use of the Swapnalee and Vijayan's correlation, suitable for single-phase NCLs (Natural Circulation Loops) with constant diameter, 𝑑𝑑, in steady state whose flow regimen is in transition, for calculating the induced mass flow rate in a new NCL design consisting on a thermal energy storage tank with an integrated steam generator. The system, known as TES-SG (Thermal Energy Storage with integrated Steam Generator), has already been studied at prototype scale operating in discharge mode, from both the experimental and numerical point of view, which has allowed to apply the Vijayan's methodology for calculating the dimensionless numbers necessary to solve the problem.
ABSTRACT: This work proposes the use of the Swapnalee and Vijayan's correlation, suitable for single-phase NCLs (Natural Circulation Loops) with constant diameter, 𝑑𝑑, in steady state whose flow regimen is in transition, for calculating the induced mass flow rate in a new NCL design consisting on a thermal energy storage tank with an integrated steam generator. The system, known as TES-SG (Thermal Energy Storage with integrated Steam Generator), has already been studied at prototype scale operating in discharge mode, from both the experimental and numerical point of view, which has allowed to apply the Vijayan's methodology for calculating the dimensionless numbers necessary to solve the problem.
Description
CIES2020 - XVII Congresso Ibérico e XIII Congresso Ibero-americano de Energia Solar
Keywords
Thermal energy storage Computational Fluid Dynamics Natural circulation Transition flow regime
Pedagogical Context
Citation
Rivas, E... [et.al.] - Circuito termo-hidráulico equivalente de un sistema de almacenamiento térmico en sales fundidas con generador de vapor integrado en circulación natural. In: CIES2020: As Energias Renováveis na Transição Energética: Livro de Comunicações do XVII Congresso Ibérico e XIII Congresso Ibero-americano de Energia Solar. Helder Gonçalves, Manuel Romero (Ed.). Lisboa, Portugal: LNEG, 3-5 Novembro, 2020, p. 817-822
Publisher
LNEG - Laboratório Nacional de Energia e Geologia