Enhancement of the power-to-heat energy conversion process of a thermal energy storage cycle through the use of a thermoelectric heat pump
| dc.contributor.author | Erro Iturralde, Irantzu | |
| dc.contributor.author | Aranguren Garacochea, Patricia | |
| dc.contributor.author | Sorbet Presentación, Francisco Javier | |
| dc.contributor.author | Bonilla-Campos, Íñigo | |
| dc.contributor.author | Astrain Ulibarrena, David | |
| dc.contributor.department | Institute of Smart Cities - ISC | en |
| dc.contributor.funder | Universidad Pública de Navarra / Nafarroako Unibertsitate Publikoa | es |
| dc.date.accessioned | 2024-04-30T17:19:22Z | |
| dc.date.available | 2024-04-30T17:19:22Z | |
| dc.date.issued | 2024 | |
| dc.date.updated | 2024-04-30T16:59:44Z | |
| dc.description.abstract | The principal strategy for achieving a neutral climate entails enhancing the share of renewable energies in the energy mix, in conjunction with promoting innovation in efficient technologies. Thermal energy storage systems have the potential to efficiently handle the intermittent nature of renewable energy sources. Furthermore, these systems can effectively handle shifts in both heat and electrical demand. Thus, efficient power-to-heat technologies are needed to boost thermal energy storage. This manuscript explores the potential of utilising a thermoelectric heat pump system in conjunction with electric resistances for charging a thermal energy storage. In order to achieve elevated temperatures, the thermoelectric system integrates thermoelectric heat pump blocks in a two-stage configuration. Air has been employed as a heat transfer medium for sensible heat storage. Higher airflow rates improve the performance of thermoelectric heat pump system. Moreover, its impact on the optimal voltage supply of the thermoelectric system is observed when it is combined with an electric resistance to achieve elevated temperatures. In comparison to the basic charging process that solely relies on the electric resistance of a thermal energy storage at 120 °C, a significant 30 % increase in power-to-heat energy conversion has been achieved by including the thermoelectric heat pump system. In fact, it efficiently elevates the temperature from the initial ambient temperature of 25 °C to a remarkable 113.1 °C, achieving a coefficient of performance of 1.35 with an airflow rate of 23 m3/h. Therefore, the use of this technology to enhance a complete process of storing excess renewable energy in the form of heat for subsequent use in both heat and electricity through a combined heat and power cycle is demonstrated. | en |
| dc.description.sponsorship | The authors would like to acknowledge the support of the Government of Navarre, as part of the “Grants to SINAI agents for the realisation of collaborative R&D projects” under the PC066-067-068 FlexORCStorage project. Open access funding provided by Universidad Pública de Navarra. | en |
| dc.format.mimetype | application/pdf | en |
| dc.identifier.citation | Erro, I., Aranguren, P., Sorbet, F. J., Bonilla-Campos, I., Astrain, D. (2024) Enhancement of the power-to-heat energy conversion process of a thermal energy storage cycle through the use of a thermoelectric heat pump. Applied Thermal Engineering, 246, 1-12. https://doi.org/10.1016/j.applthermaleng.2024.122923. | en |
| dc.identifier.doi | 10.1016/j.applthermaleng.2024.122923 | |
| dc.identifier.issn | 1359-4311 | |
| dc.identifier.uri | https://academica-e.unavarra.es/handle/2454/48025 | |
| dc.language.iso | eng | en |
| dc.publisher | Elsevier | en |
| dc.relation.ispartof | Applied Thermal Engineering 246, (2024), 122923 | en |
| dc.relation.projectID | info:eu-repo/grantAgreement/Gobierno de Navarra//PC066-067-068 FlexORCStorage/ | |
| dc.relation.publisherversion | https://doi.org/10.1016/j.applthermaleng.2024.122923 | |
| dc.rights | © 2024 The Authors. This is an open access article under the CC BY-NC license. | en |
| dc.rights.accessRights | info:eu-repo/semantics/openAccess | |
| dc.rights.uri | https://creativecommons.org/licenses/by-nc/4.0/ | |
| dc.subject | COP | en |
| dc.subject | Energy management | en |
| dc.subject | Power-to-heat | en |
| dc.subject | Thermal energy storage | en |
| dc.subject | Thermoelectric heat pump | en |
| dc.title | Enhancement of the power-to-heat energy conversion process of a thermal energy storage cycle through the use of a thermoelectric heat pump | en |
| dc.type | info:eu-repo/semantics/article | |
| dc.type.version | info:eu-repo/semantics/publishedVersion | |
| dspace.entity.type | Publication | |
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