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, 11 (9)
doi: 10.1002/ese3.1505
Artikel, Bibliographie
Dies ist die neueste Version dieses Eintrags.
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: | Bibliographie |
| Titel: | Analysis of low‐temperature pumped thermal energy storage systems based on a transcritical CO₂ charging process |
| Sprache: | Englisch |
| Publikationsjahr: | 19 Juni 2023 |
| Verlag: | Wiley |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Energy Science & Engineering |
| Jahrgang/Volume einer Zeitschrift: | 11 |
| (Heft-)Nummer: | 9 |
| DOI: | 10.1002/ese3.1505 |
| 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. |
| Fachbereich(e)/-gebiet(e): | 16 Fachbereich Maschinenbau 16 Fachbereich Maschinenbau > Fachgebiet für Technische Thermodynamik (TTD) |
| Hinterlegungsdatum: | 25 Sep 2023 07:10 |
| Letzte Änderung: | 08 Nov 2023 10:18 |
| PPN: | 511880103 |
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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)
- Analysis of low‐temperature pumped thermal energy storage systems based on a transcritical CO₂ charging process. (deposited 25 Sep 2023 07:10) [Gegenwärtig angezeigt]
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