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Open AccessArticle

Potentials of Thermal Energy Storage Integrated into Steam Power Plants

1
German Aerospace Center (DLR), Institute of Engineering Thermodynamics, 70569 Stuttgart, Germany
2
Chair of Environmental Process Engineering and Plant Design, University of Duisburg-Essen, 45141 Essen, Germany
3
Siemens AG, Power and Gas Division, 91058 Erlangen, Germany
4
German Aerospace Center (DLR), Institute of Engineering Thermodynamics, 51147 Köln, Germany
*
Author to whom correspondence should be addressed.
Energies 2020, 13(9), 2226; https://doi.org/10.3390/en13092226
Received: 21 January 2020 / Revised: 3 April 2020 / Accepted: 22 April 2020 / Published: 3 May 2020
For conventional power plants, the integration of thermal energy storage opens up a promising opportunity to meet future technical requirements in terms of flexibility while at the same time improving cost-effectiveness. In the FLEXI- TES joint project, the flexibilization of coal-fired steam power plants by integrating thermal energy storage (TES) into the power plant process is being investigated. In the concept phase at the beginning of the research project, various storage integration concepts were developed and evaluated. Finally, three lead concepts with different storage technologies and integration points in the power plant were identified. By means of stationary system simulations, the changes of net power output during charging and discharging as well as different storage efficiencies were calculated. Depending on the concept and the operating strategy, a reduction of the minimum load by up to 4% of the net capacity during charging and a load increase by up to 5% of the net capacity during discharging are possible. Storage efficiencies of up to 80% can be achieved. View Full-Text
Keywords: coal power plants; TES; thermal energy storage coal power plants; TES; thermal energy storage
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MDPI and ACS Style

Krüger, M.; Muslubas, S.; Loeper, T.; Klasing, F.; Knödler, P.; Mielke, C. Potentials of Thermal Energy Storage Integrated into Steam Power Plants. Energies 2020, 13, 2226. https://doi.org/10.3390/en13092226

AMA Style

Krüger M, Muslubas S, Loeper T, Klasing F, Knödler P, Mielke C. Potentials of Thermal Energy Storage Integrated into Steam Power Plants. Energies. 2020; 13(9):2226. https://doi.org/10.3390/en13092226

Chicago/Turabian Style

Krüger, Michael; Muslubas, Selman; Loeper, Thomas; Klasing, Freerk; Knödler, Philipp; Mielke, Christian. 2020. "Potentials of Thermal Energy Storage Integrated into Steam Power Plants" Energies 13, no. 9: 2226. https://doi.org/10.3390/en13092226

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