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Potentials of Thermal Energy Storage Integrated into Steam Power Plants

Krüger, Michael and Muslubas, Selman and Loeper, Thomas and Klasing, Freerk and Knödler, Philipp and Mielke, Christian (2020) Potentials of Thermal Energy Storage Integrated into Steam Power Plants. Energies, 13 (2226). Multidisciplinary Digital Publishing Institute (MDPI). doi: 10.3390/en13092226. ISSN 1996-1073.

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Official URL: https://www.mdpi.com/1996-1073/13/9/2226

Abstract

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.

Item URL in elib:https://elib.dlr.de/135473/
Document Type:Article
Title:Potentials of Thermal Energy Storage Integrated into Steam Power Plants
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Krüger, MichaelMichael.Krueger (at) dlr.dehttps://orcid.org/0000-0002-2187-8678
Muslubas, SelmanUniversität Duisburg-EssenUNSPECIFIED
Loeper, ThomasSiemens AGUNSPECIFIED
Klasing, FreerkFreerk.Klasing (at) dlr.deUNSPECIFIED
Knödler, PhilippPhilipp.Knoedler (at) dlr.deUNSPECIFIED
Mielke, ChristianSiemens AGUNSPECIFIED
Date:2020
Journal or Publication Title:Energies
Refereed publication:Yes
Open Access:Yes
Gold Open Access:Yes
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:13
DOI :10.3390/en13092226
Publisher:Multidisciplinary Digital Publishing Institute (MDPI)
ISSN:1996-1073
Status:Published
Keywords:Kohlekraftwerk; Wärmespeicher; TES
HGF - Research field:Energy
HGF - Program:Storage and Cross-linked Infrastructures
HGF - Program Themes:Thermal Energy Storage
DLR - Research area:Energy
DLR - Program:E SP - Energy Storage
DLR - Research theme (Project):E - Thermochemical Processes (Storage) (old)
Location: Stuttgart
Institutes and Institutions:Institute of Engineering Thermodynamics > Thermal Process Technology
Deposited By: Krüger, Michael
Deposited On:08 Jul 2020 13:18
Last Modified:10 Jul 2020 11:17

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