Bodner, Jonas ; Koksharov, Josefine ; Dammel, Frank ; Stephan, Peter (2023)
Analysis of low‐temperature pumped thermal energy storage systems based on a transcritical CO₂ charging process.
In: Energy Science & Engineering, 2023, 11 (9)
doi: 10.26083/tuprints-00024677
Artikel, Zweitveröffentlichung, Verlagsversion
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Kurzbeschreibung (Abstract)
Pumped thermal energy storage (PTES) is a technology for intermediate storage of electrical energy in the form of thermal energy. In this work, PTES systems based on a transcritical CO₂ charging process are investigated. A two‐zone water storage tank with a storage temperature of 115°C is used as thermal energy storage. For discharge, an Organic Rankine Cycle (ORC) and, alternatively, a transcritical CO₂ heat engine are investigated. The considered concepts are modelled and simulated as stationary processes using the EBSILON Professional software. The scaling is based on an electrical input power of 5 MW. Using an ORC with the working fluid R1234yf for the discharging process results in the highest round‐trip efficiency of 36.8%. The component costs of the different configurations are estimated using cost functions. On the basis of this, the levelized cost of storage (LCOS) is calculated. The configuration with the ORC as the discharging process has the lowest LCOS of 59.2 €cents (kWh)⁻¹. In addition, the technological maturity is determined using the technology readiness level scale. There are no prototypes of the investigated PTES systems yet. Therefore, further investigations must be carried out to implement the technology in the future.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2023 |
| Autor(en): | Bodner, Jonas ; Koksharov, Josefine ; Dammel, Frank ; Stephan, Peter |
| Art des Eintrags: | Zweitveröffentlichung |
| Titel: | Analysis of low‐temperature pumped thermal energy storage systems based on a transcritical CO₂ charging process |
| Sprache: | Englisch |
| Publikationsjahr: | 7 November 2023 |
| Ort: | Darmstadt |
| Publikationsdatum der Erstveröffentlichung: | 2023 |
| Ort der Erstveröffentlichung: | Chichester |
| Verlag: | John Wiley & Sons |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Energy Science & Engineering |
| Jahrgang/Volume einer Zeitschrift: | 11 |
| (Heft-)Nummer: | 9 |
| DOI: | 10.26083/tuprints-00024677 |
| URL / URN: | https://tuprints.ulb.tu-darmstadt.de/24677 |
| Zugehörige Links: | |
| Herkunft: | Zweitveröffentlichung DeepGreen |
| Kurzbeschreibung (Abstract): | Pumped thermal energy storage (PTES) is a technology for intermediate storage of electrical energy in the form of thermal energy. In this work, PTES systems based on a transcritical CO₂ charging process are investigated. A two‐zone water storage tank with a storage temperature of 115°C is used as thermal energy storage. For discharge, an Organic Rankine Cycle (ORC) and, alternatively, a transcritical CO₂ heat engine are investigated. The considered concepts are modelled and simulated as stationary processes using the EBSILON Professional software. The scaling is based on an electrical input power of 5 MW. Using an ORC with the working fluid R1234yf for the discharging process results in the highest round‐trip efficiency of 36.8%. The component costs of the different configurations are estimated using cost functions. On the basis of this, the levelized cost of storage (LCOS) is calculated. The configuration with the ORC as the discharging process has the lowest LCOS of 59.2 €cents (kWh)⁻¹. In addition, the technological maturity is determined using the technology readiness level scale. There are no prototypes of the investigated PTES systems yet. Therefore, further investigations must be carried out to implement the technology in the future. |
| Freie Schlagworte: | CO₂ heat pump, energy storage, Organic Rankine Cycle, pumped thermal energy storage, transcritical CO₂ |
| Status: | Verlagsversion |
| URN: | urn:nbn:de:tuda-tuprints-246775 |
| Sachgruppe der Dewey Dezimalklassifikatin (DDC): | 600 Technik, Medizin, angewandte Wissenschaften > 620 Ingenieurwissenschaften und Maschinenbau |
| Fachbereich(e)/-gebiet(e): | 16 Fachbereich Maschinenbau 16 Fachbereich Maschinenbau > Fachgebiet für Technische Thermodynamik (TTD) |
| Hinterlegungsdatum: | 07 Nov 2023 12:33 |
| Letzte Änderung: | 08 Nov 2023 06:07 |
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| Suche nach Titel in: | TUfind oder in Google |
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- Analysis of low‐temperature pumped thermal energy storage systems based on a transcritical CO₂ charging process. (deposited 07 Nov 2023 12:33) [Gegenwärtig angezeigt]
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