Koksharov, Josefine ; Zendel, Lauritz ; Dammel, Frank ; Stephan, Peter (2024)
Thermodynamic, Economic and Maturity Analysis of a Carnot Battery with a Two-Zone Water Thermal Energy Storage for Different Working Fluids.
In: Energies, 17 (2)
doi: 10.3390/en17020437
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
The rising share of renewable energies leads to increased fluctuations in electrical power supply. One possibility to shift the surplus energy based on demand is a Carnot battery (CB). A CB uses a heat pump or resistance heater to convert and store thermal energy into electrical energy. Later, the stored thermal energy is converted back into electrical energy using a heat engine. This study investigates a CB with a two-zone tank for thermal energy storage. A transcritical process with CO₂ is applied for charging, while discharging employs a transcritical process with CO₂ and six refrigerants operating in a subcritical process. The transcritical process with CO₂ and the four most promising subcritical processes are compared regarding round trip efficiency and levelized cost of electricity (LCOE) depending on the pinch points 5 K and 1 K in the heat exchangers. Additionally, the technology readiness level (TRL) is determined for these configurations. The results show round-trip efficiencies between 11.3% and 33.5% and LCOEs ranging from EUR 0.95 (kWh)⁻¹ to EUR 2.09 (kWh)⁻¹ for the considered concepts with TRLs of up to six.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2024 |
| Autor(en): | Koksharov, Josefine ; Zendel, Lauritz ; Dammel, Frank ; Stephan, Peter |
| Art des Eintrags: | Bibliographie |
| Titel: | Thermodynamic, Economic and Maturity Analysis of a Carnot Battery with a Two-Zone Water Thermal Energy Storage for Different Working Fluids |
| Sprache: | Englisch |
| Publikationsjahr: | Januar 2024 |
| Ort: | Basel |
| Verlag: | MDPI |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Energies |
| Jahrgang/Volume einer Zeitschrift: | 17 |
| (Heft-)Nummer: | 2 |
| Kollation: | 20 Seiten |
| DOI: | 10.3390/en17020437 |
| URL / URN: | https://www.mdpi.com/1996-1073/17/2/437 |
| Kurzbeschreibung (Abstract): | The rising share of renewable energies leads to increased fluctuations in electrical power supply. One possibility to shift the surplus energy based on demand is a Carnot battery (CB). A CB uses a heat pump or resistance heater to convert and store thermal energy into electrical energy. Later, the stored thermal energy is converted back into electrical energy using a heat engine. This study investigates a CB with a two-zone tank for thermal energy storage. A transcritical process with CO₂ is applied for charging, while discharging employs a transcritical process with CO₂ and six refrigerants operating in a subcritical process. The transcritical process with CO₂ and the four most promising subcritical processes are compared regarding round trip efficiency and levelized cost of electricity (LCOE) depending on the pinch points 5 K and 1 K in the heat exchangers. Additionally, the technology readiness level (TRL) is determined for these configurations. The results show round-trip efficiencies between 11.3% and 33.5% and LCOEs ranging from EUR 0.95 (kWh)⁻¹ to EUR 2.09 (kWh)⁻¹ for the considered concepts with TRLs of up to six. |
| Freie Schlagworte: | Carnot battery, CO₂ heat pump, organic Rankine cycle, water storage tank |
| ID-Nummer: | Artikel-ID: 437 |
| Zusätzliche Informationen: | This paper is an extended version of the paper published in 2023 Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems, Las Palmas de Gran Canaria, Spain, 25–30 June 2023; pp. 2126–2137 |
| Fachbereich(e)/-gebiet(e): | 16 Fachbereich Maschinenbau 16 Fachbereich Maschinenbau > Fachgebiet für Technische Thermodynamik (TTD) 16 Fachbereich Maschinenbau > Fachgebiet für Technische Thermodynamik (TTD) > Analyse Thermischer Energiesysteme |
| Hinterlegungsdatum: | 22 Nov 2024 07:53 |
| Letzte Änderung: | 22 Nov 2024 07:53 |
| PPN: | 52404662X |
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| Suche nach Titel in: | TUfind oder in Google |
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