Development and experimental validation of a two-stage thermoelectric heat pump computational model for heating applications
| dc.contributor.author | Erro Iturralde, Irantzu | |
| dc.contributor.author | Aranguren Garacochea, Patricia | |
| dc.contributor.author | Martínez Echeverri, Álvaro | |
| dc.contributor.author | Astrain Ulibarrena, David | |
| dc.contributor.department | Ingeniería | es_ES |
| dc.contributor.department | Ingeniaritza | eu |
| dc.contributor.department | Institute of Smart Cities - ISC | en |
| dc.contributor.funder | Universidad Pública de Navarra - Nafarroako Unibertsitate Publikoa | es |
| dc.date.accessioned | 2024-08-12T08:41:52Z | |
| dc.date.available | 2024-08-12T08:41:52Z | |
| dc.date.issued | 2024 | |
| dc.date.updated | 2024-08-12T08:32:39Z | |
| dc.description.abstract | The utilisation of thermoelectric technology as a heat pump in heating applications necessitates comprehensive investigation. The scalable nature of thermoelectric technology enables its operation at elevated temperatures without the requirement of refrigerants. In this work, an accurate computational model that can simulate one- and two-stage thermoelectric heat pumps is developed. This model uses the electric-thermal analogy and the finite difference method, including the thermoelectric effects, temperature dependent properties, thermal contact resistances and all heat exchangers, even the intermediate heat exchanger in the case of a two-stage configuration. Moreover, the model has been experimentally validated by built and tested prototypes, being the first time that a two-stage thermoelectric heat pump model is experimentally validated. The discrepancy between the simulated and experimental results is below the ± 10 % for , ± 8 % for generated heat and temperature lift in the airflow, and less than the ± 6 % for consumed power. Additonally, the model simulates real tendencies under different operating conditions, proving the reliability of the developed thermoelectric heat pump model. Finally, the model is used to optimise a thermoelectric system combining one- and two-stage thermoelectric heat pumps, and hybridising them with electric resistances. An airflow of 16.5 m3/h is heated from 25 °C to 160 °C, achieving a maximum of 1.21. Lastly, the importance of considering the thermal resistances of the heat exchangers is computationally modelled and demonstrated. Not taking them into account would overestimate the performance of the TEHP system by more than the 7 %. | en |
| dc.description.sponsorship | The authors would like to acknowledge the support of the grant TED2021-130071A-I00 funded by MCIN/AEI/10.13039/501100011033 and, as appropriate, by 'European Union Next Generation EU/PRTR', as well as the Government of Navarre, as part of the 'Grants to SINAI agents for the realization of collaborative R&D projects' under the PC066-067-068 FlexORCStorage. Open access funding provided by Universidad Pública de Navarra. | |
| dc.format.mimetype | application/pdf | en |
| dc.identifier.citation | Erro, I.,Aranguren, P.,Martinez,, A.,Astrain, D. (2024) Development and experimental validation of a two-stage thermoelectric heat pump computational model for heating applications. Thermal science and engineering progress, 53. https://doi.org/10.1016/j.tsep.2024.102721. | |
| dc.identifier.doi | 10.1016/j.tsep.2024.102721 | |
| dc.identifier.issn | 2451-9049 | |
| dc.identifier.uri | https://academica-e.unavarra.es/handle/2454/50678 | |
| dc.language.iso | eng | |
| dc.publisher | Elsevier | |
| dc.relation.ispartof | Thermal science and engineering progress (2024), vol. 53, 102721 | |
| dc.relation.projectID | info:eu-repo/grantAgreement///TED2021-130071A-I00/ | |
| dc.relation.projectID | info:eu-repo/grantAgreement/Gobierno de Navarra//PC066-067-068/ | |
| dc.relation.publisherversion | https://doi.org/10.1016/j.tsep.2024.102721 | |
| dc.rights | © 2024 The Author(s). Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license | |
| dc.rights.accessRights | info:eu-repo/semantics/openAccess | |
| dc.rights.uri | https://creativecommons.org/licenses/by-nc-nd/4.0/ | |
| dc.subject | Thermoelectric heat pump | en |
| dc.subject | Multistage | en |
| dc.subject | Intermediate heat exchanger | en |
| dc.subject | Thermal resistance | en |
| dc.title | Development and experimental validation of a two-stage thermoelectric heat pump computational model for heating applications | en |
| dc.type | info:eu-repo/semantics/article | |
| dc.type.version | info:eu-repo/semantics/publishedVersion | |
| dspace.entity.type | Publication | |
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