Durand, Sullivan, Neveu, Pierre, Rousse, Daniel R. et Haillot, Didier.
2025.
« Comparative study of the discharge architecture for a multi-energy pumped thermal energy storage system using finite dimension thermodynamics ».
In Proceedings of the CSME-CFDSC-CSR 2025 International Congress (Montreal, QC, Canada, May 25-28, 2025)
Coll. « Progress in Canadian Mechanical Engineering », vol. 8.
Résumé
This study presents a comparative assessment of the conventional discharge architecture of multi-energy Pumped Thermal Energy Storage (m-PTES) systems and an alternative configuration. In traditional architecture, the whole stored energy is devoted to supplying heat to the Rankine cycle which produces both electricity and useful thermal energy. On the contrary, in the alternative one, part of the stored energy is directly recovered through a heat exchanger to deliver thermal energy. The other part is used for the Rankine cycle. Thus, this cycle involves a lower capacity but it operates with the external environment as a heat sink. The performance of both configurations was analyzed using Finite Dimension Thermodynamics (FDT), considering key indicators such as power cycle efficiency, total required power, and heat exchanger conductances. This study uses the context of an industrial natural resource extraction process as a case study. The results show that the proposed configuration is more efficient when the external environment temperature is lower than the useful heat sink temperature. Additionally, this architecture achieves higher efficiencies for high power-to-heat ratios and storage temperatures below 497 °C. This research significantly contributes to the study of m-PTES systems by introducing a new discharge strategy, providing a detailed comparison with the conventional approach using FDT, and proposing heat exchanger optimization to minimize conductances.
| Type de document: | Compte rendu de conférence |
|---|---|
| Éditeurs: | Éditeurs ORCID Hof, Lucas A. NON SPÉCIFIÉ Di Labbio, Giuseppe NON SPÉCIFIÉ Tahan, Antoine NON SPÉCIFIÉ Sanjosé, Marlène NON SPÉCIFIÉ Lalonde, Sébastien NON SPÉCIFIÉ Demarquette, Nicole R. NON SPÉCIFIÉ |
| Professeur: | Professeur Rousse, Daniel R. Haillot, Didier |
| Affiliation: | Génie mécanique, Génie mécanique |
| Date de dépôt: | 23 mai 2025 15:32 |
| Dernière modification: | 26 sept. 2025 17:46 |
| URI: | https://espace2.etsmtl.ca/id/eprint/30969 |
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