Proposal of a new design of central solar receiver for pressurised gases and supercritical fluids

This work presents a novel design of microchannel central receiver for pressurised gases and supercritical fluids in solar tower plants. It consists of a radial arrangement of vertical absorber panels that converge on the central axis of the tower. The absorber panels comprise compact structures, wh...

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Detalhes bibliográficos
Autores: Guedez Mata, Rafael, Linares Hurtado, José Ignacio, González Aguilar, José, Romero, Manuel, Montes Pita, María José, D Souza, David Jonathan
Formato: artículo
Fecha de publicación:2023
País:España
Recursos:Universidad Nacional de Educación a Distancia
Repositorio:e-spacio. Repositorio Institucional de la UNED
Idioma:inglés
OAI Identifier:oai:e-spacio.uned.es:20.500.14468/12405
Acesso em linha:https://hdl.handle.net/20.500.14468/12405
Access Level:acceso abierto
Palavra-chave:Solar central receiver
Radial configuration
Light-trapping geometry
Increasing compactness
Supercritical fluid
Pressurised gases
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spelling Proposal of a new design of central solar receiver for pressurised gases and supercritical fluidsGuedez Mata, RafaelLinares Hurtado, José IgnacioGonzález Aguilar, JoséRomero, ManuelMontes Pita, María JoséD Souza, David JonathanSolar central receiverRadial configurationLight-trapping geometryIncreasing compactnessSupercritical fluidPressurised gasesThis work presents a novel design of microchannel central receiver for pressurised gases and supercritical fluids in solar tower plants. It consists of a radial arrangement of vertical absorber panels that converge on the central axis of the tower. The absorber panels comprise compact structures, whose compactness is increased in one flow pass compared to the previous one, as the fluid is heated. This concept reduces radiation heat losses due to its light-trapping geometry and increases heat transfer to the thermal fluid without over penalising its pressure drop. For the receiver assessment, it has been developed a thermal resistance model characterising the fluid heating along the panel height and the temperature gradient between parallel channel rows of the compact structure across the panel thickness. Once the thermal and optical boundary conditions are defined, an optimisation analysis of the main geometrical parameters of the receiver has been accomplished. The receiver performance is evaluated by means of a global exergy efficiency referred to the solar subsystem, which computes the receiver heat losses, the fluid pressure drop and the optical efficiency of the heliostat field in which the receiver is integrated. For each parametric optimisation, the configuration that maximises this efficiency is identified.Elseviere-Spacio UNED20242024-05-2020232023-07-1020232023-07-10journal articlehttp://purl.org/coar/resource_type/c_6501info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/20.500.14468/12405reponame:e-spacio. Repositorio Institucional de la UNEDinstname:Universidad Nacional de Educación a DistanciaInglésengopen accesshttp://purl.org/coar/access_right/c_abf2info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/4.0/deed.esoai:e-spacio.uned.es:20.500.14468/124052026-06-06T12:38:31Z
dc.title.none.fl_str_mv Proposal of a new design of central solar receiver for pressurised gases and supercritical fluids
title Proposal of a new design of central solar receiver for pressurised gases and supercritical fluids
spellingShingle Proposal of a new design of central solar receiver for pressurised gases and supercritical fluids
Guedez Mata, Rafael
Solar central receiver
Radial configuration
Light-trapping geometry
Increasing compactness
Supercritical fluid
Pressurised gases
title_short Proposal of a new design of central solar receiver for pressurised gases and supercritical fluids
title_full Proposal of a new design of central solar receiver for pressurised gases and supercritical fluids
title_fullStr Proposal of a new design of central solar receiver for pressurised gases and supercritical fluids
title_full_unstemmed Proposal of a new design of central solar receiver for pressurised gases and supercritical fluids
title_sort Proposal of a new design of central solar receiver for pressurised gases and supercritical fluids
dc.creator.none.fl_str_mv Guedez Mata, Rafael
Linares Hurtado, José Ignacio
González Aguilar, José
Romero, Manuel
Montes Pita, María José
D Souza, David Jonathan
author Guedez Mata, Rafael
author_facet Guedez Mata, Rafael
Linares Hurtado, José Ignacio
González Aguilar, José
Romero, Manuel
Montes Pita, María José
D Souza, David Jonathan
author_role author
author2 Linares Hurtado, José Ignacio
González Aguilar, José
Romero, Manuel
Montes Pita, María José
D Souza, David Jonathan
author2_role author
author
author
author
author
dc.contributor.none.fl_str_mv e-Spacio UNED
dc.subject.none.fl_str_mv Solar central receiver
Radial configuration
Light-trapping geometry
Increasing compactness
Supercritical fluid
Pressurised gases
topic Solar central receiver
Radial configuration
Light-trapping geometry
Increasing compactness
Supercritical fluid
Pressurised gases
description This work presents a novel design of microchannel central receiver for pressurised gases and supercritical fluids in solar tower plants. It consists of a radial arrangement of vertical absorber panels that converge on the central axis of the tower. The absorber panels comprise compact structures, whose compactness is increased in one flow pass compared to the previous one, as the fluid is heated. This concept reduces radiation heat losses due to its light-trapping geometry and increases heat transfer to the thermal fluid without over penalising its pressure drop. For the receiver assessment, it has been developed a thermal resistance model characterising the fluid heating along the panel height and the temperature gradient between parallel channel rows of the compact structure across the panel thickness. Once the thermal and optical boundary conditions are defined, an optimisation analysis of the main geometrical parameters of the receiver has been accomplished. The receiver performance is evaluated by means of a global exergy efficiency referred to the solar subsystem, which computes the receiver heat losses, the fluid pressure drop and the optical efficiency of the heliostat field in which the receiver is integrated. For each parametric optimisation, the configuration that maximises this efficiency is identified.
publishDate 2023
dc.date.none.fl_str_mv 2023
2023-07-10
2023
2023-07-10
2024
2024-05-20
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/20.500.14468/12405
url https://hdl.handle.net/20.500.14468/12405
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-nd/4.0/deed.es
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
https://creativecommons.org/licenses/by-nc-nd/4.0/deed.es
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:e-spacio. Repositorio Institucional de la UNED
instname:Universidad Nacional de Educación a Distancia
instname_str Universidad Nacional de Educación a Distancia
reponame_str e-spacio. Repositorio Institucional de la UNED
collection e-spacio. Repositorio Institucional de la UNED
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15.811543

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