Proposal of a microchannel receiver for Fresnel technology to supply solar heat for industrial processes

This work is focused on the linear Fresnel technology to supply solar heat for industrial processes, proposing a new microchannel receiver design for pressurised gases. This design consists of two absorber panels converging at the focal line of the Fresnel system; each of these panels consists of a...

Full description

Bibliographic Details
Authors: Stojceska, V., Reay, David A., Montes Pita, María José, Ibarra Mollá, Mercedes
Format: article
Publication Date:2023
Country:España
Institution:Universidad Nacional de Educación a Distancia
Repository:e-spacio. Repositorio Institucional de la UNED
Language:English
OAI Identifier:oai:e-spacio.uned.es:20.500.14468/12401
Online Access:https://hdl.handle.net/20.500.14468/12401
Access Level:Open access
Keyword:Linear fresnel reflector
Microchannel receiver
Solar heat for industrial processes
Convergent absorber panels
Light-trapping geometry
Pressurised gases
id ES_b408ccd93c795d3e30a6abbc7db092f0
oai_identifier_str oai:e-spacio.uned.es:20.500.14468/12401
network_acronym_str ES
network_name_str España
repository_id_str
spelling Proposal of a microchannel receiver for Fresnel technology to supply solar heat for industrial processesStojceska, V.Reay, David A.Montes Pita, María JoséIbarra Mollá, MercedesLinear fresnel reflectorMicrochannel receiverSolar heat for industrial processesConvergent absorber panelsLight-trapping geometryPressurised gasesThis work is focused on the linear Fresnel technology to supply solar heat for industrial processes, proposing a new microchannel receiver design for pressurised gases. This design consists of two absorber panels converging at the focal line of the Fresnel system; each of these panels consists of a compact core fin structure attached to both front and back plates. The fluid flows through the receiver along its length in several passes, so that the compactness is constant and greater than in the previous pass. This arrangement improves heat transfer and, therefore, the cooling of the more thermally stressed areas of the panel, without over penalising the pressure drop. A thermal resistance model has been formulated to quantify the fluid heating along the panel length and the thermal gradient along the panel thickness. This model has been used to perform a thermo-exergy optimisation based on several characteristic parameters: the aperture half-angle of the cavity shaped by the two converging panels; and the channels dimensions in each pass of the panel. For each of these parameters, a maximum exergy efficiency has been obtained accounting for the receiver heat losses, the fluid pressure drop and the optical performance of the primary mirror field.Elseviere-Spacio UNED20242024-05-2020232023-09-3020232023-09-30journal articlehttp://purl.org/coar/resource_type/c_6501info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/20.500.14468/12401reponame: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:20.500.14468/124012026-06-06T12:38:31Z
dc.title.none.fl_str_mv Proposal of a microchannel receiver for Fresnel technology to supply solar heat for industrial processes
title Proposal of a microchannel receiver for Fresnel technology to supply solar heat for industrial processes
spellingShingle Proposal of a microchannel receiver for Fresnel technology to supply solar heat for industrial processes
Stojceska, V.
Linear fresnel reflector
Microchannel receiver
Solar heat for industrial processes
Convergent absorber panels
Light-trapping geometry
Pressurised gases
title_short Proposal of a microchannel receiver for Fresnel technology to supply solar heat for industrial processes
title_full Proposal of a microchannel receiver for Fresnel technology to supply solar heat for industrial processes
title_fullStr Proposal of a microchannel receiver for Fresnel technology to supply solar heat for industrial processes
title_full_unstemmed Proposal of a microchannel receiver for Fresnel technology to supply solar heat for industrial processes
title_sort Proposal of a microchannel receiver for Fresnel technology to supply solar heat for industrial processes
dc.creator.none.fl_str_mv Stojceska, V.
Reay, David A.
Montes Pita, María José
Ibarra Mollá, Mercedes
author Stojceska, V.
author_facet Stojceska, V.
Reay, David A.
Montes Pita, María José
Ibarra Mollá, Mercedes
author_role author
author2 Reay, David A.
Montes Pita, María José
Ibarra Mollá, Mercedes
author2_role author
author
author
dc.contributor.none.fl_str_mv e-Spacio UNED
dc.subject.none.fl_str_mv Linear fresnel reflector
Microchannel receiver
Solar heat for industrial processes
Convergent absorber panels
Light-trapping geometry
Pressurised gases
topic Linear fresnel reflector
Microchannel receiver
Solar heat for industrial processes
Convergent absorber panels
Light-trapping geometry
Pressurised gases
description This work is focused on the linear Fresnel technology to supply solar heat for industrial processes, proposing a new microchannel receiver design for pressurised gases. This design consists of two absorber panels converging at the focal line of the Fresnel system; each of these panels consists of a compact core fin structure attached to both front and back plates. The fluid flows through the receiver along its length in several passes, so that the compactness is constant and greater than in the previous pass. This arrangement improves heat transfer and, therefore, the cooling of the more thermally stressed areas of the panel, without over penalising the pressure drop. A thermal resistance model has been formulated to quantify the fluid heating along the panel length and the thermal gradient along the panel thickness. This model has been used to perform a thermo-exergy optimisation based on several characteristic parameters: the aperture half-angle of the cavity shaped by the two converging panels; and the channels dimensions in each pass of the panel. For each of these parameters, a maximum exergy efficiency has been obtained accounting for the receiver heat losses, the fluid pressure drop and the optical performance of the primary mirror field.
publishDate 2023
dc.date.none.fl_str_mv 2023
2023-09-30
2023
2023-09-30
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/20.500.14468/12401
url https://hdl.handle.net/20.500.14468/12401
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
_version_ 1869417227505106944
score 15,811543

Similar Items