Zero-power-consumption thermoelectric system to prevent overheating in solar collectors

Martínez Echeverri, Álvaro; Astrain Ulibarrena, David; Rodríguez García, Antonio

Publication:
Zero-power-consumption thermoelectric system to prevent overheating in solar collectors

dc.contributor.author	Martínez Echeverri, Álvaro
dc.contributor.author	Astrain Ulibarrena, David
dc.contributor.author	Rodríguez García, Antonio
dc.contributor.department	Ingeniería Mecánica, Energética y de Materiales	es_ES
dc.contributor.department	Mekanika, Energetika eta Materialen Ingeniaritza	eu
dc.date.accessioned	2016-10-27T16:17:16Z
dc.date.available	2017-01-01T00:00:15Z
dc.date.issued	2014
dc.description.abstract	Highly promoted by the European Union Climate and Energy Package for 2020, solar collectors stand out as the most promising alternative to meet water heating demands. One of the most limiting problems in these systems involves the overheating of the working fluid, resulting in rapid fluid degradation, scaling and premature component failure. This paper presents the computational design of a zero-power-consumption system that combines thermoelectric-self-cooling technology and thermosyphon effect to dissipate the excess heat from a real solar-collector installation. Thermoelectric self-cooling is a novel thermoelectric application proven to enhance the heat dissipation of any hot spot without electricity consumption. The simplest design outperforms currently-used static and dynamic dissipaters for overheating protection in solar collectors, since it increases the global heat transfer coefficient of a static dissipater by 75 % and requires no electricity. Likewise, the final design presents a global heat transfer coefficient of 15.23 W/(m2K), 155 % higher than that provided by static dissipaters, forming a reliable, robust and autonomous system that stands out as a promising alternative to prevent the overheating of solar collectors.	en
dc.description.sponsorship	The authors are indebted both to the Spanish Ministry of Economy and Competitiveness and the European Regional Development Fund for the economic support to this work, included in the DPI2011-24287 research project.	en
dc.embargo.lift	2017-01-01
dc.embargo.terms	2017-01-01
dc.format.mimetype	application/pdf	en
dc.identifier.doi	10.1016/j.applthermaleng.2014.09.001
dc.identifier.issn	1359-4311 (Print)
dc.identifier.issn	1873-5606 (Electronic)
dc.identifier.uri	https://academica-e.unavarra.es/handle/2454/22507
dc.language.iso	eng	en
dc.publisher	Elsevier	en
dc.relation.ispartof	Applied Thermal Engineering 73 (2014) 1103-1112	en
dc.relation.projectID	info:eu-repo/grantAgreement/MICINN//DPI2011-24287/ES/	en
dc.relation.publisherversion	https://dx.doi.org/10.1016/j.applthermaleng.2014.09.001
dc.rights	© 2014 Elsevier Ltd. The manuscript version is made available under the CC BY-NC-ND 4.0 license.	en
dc.rights.accessRights	Acceso abierto / Sarbide irekia	es
dc.rights.accessRights	info:eu-repo/semantics/openAccess	en
dc.rights.uri	https://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subject	Thermoelectric self-cooling	en
dc.subject	Solar collector	en
dc.subject	Overheating	en
dc.subject	Computational model	en
dc.title	Zero-power-consumption thermoelectric system to prevent overheating in solar collectors	en
dc.type	Artículo / Artikulua	es
dc.type	info:eu-repo/semantics/article	en
dc.type.version	Versión aceptada / Onetsi den bertsioa	es
dc.type.version	info:eu-repo/semantics/acceptedVersion	en
dspace.entity.type	Publication
relation.isAuthorOfPublication	1f41d3ad-c07b-4475-a762-109fe7c612d2
relation.isAuthorOfPublication	5f626878-b8c6-4403-97ee-e14738ea30e2
relation.isAuthorOfPublication	3448c5f2-1b4f-4b3d-86f0-6c6ca4541ec8
relation.isAuthorOfPublication.latestForDiscovery	1f41d3ad-c07b-4475-a762-109fe7c612d2