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Power-to-heat integration in regenerator storage: Enhancing thermal storage capacity and performance,

Belik, Sergej and Dreissigacker, Volker and Zunft, Stefan (2022) Power-to-heat integration in regenerator storage: Enhancing thermal storage capacity and performance,. Journal of Energy Storage, 50 (104570). Elsevier. doi: 10.1016/j.est.2022.104570. ISSN 2352-152X.

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Official URL: https://www.journals.elsevier.com/journal-of-energy-storage


Electrically heated regenerator storage is an energy- and cost-efficient solution for converting excess electricity and storing it as high-temperature heat. We introduce a transient model to describe the thermodynamic behavior of this hybrid storage system with the fewest number of dimensionless parameters. These characteristic parameters are used to derive key performance indicators for the thermodynamic assessment of the power-to-heat integration in regenerator storage. The results obtained from simulation studies indicate the energy-efficient location of electric heating elements inside the storage tank and provide designs with significantly improved thermal storage capacity and performance. These benefits from power-to-heat extension are particularly evident in the increased cost efficiency and operational flexibility.

Item URL in elib:https://elib.dlr.de/186682/
Document Type:Article
Title:Power-to-heat integration in regenerator storage: Enhancing thermal storage capacity and performance,
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Belik, SergejSergej.Belik (at) dlr.dehttps://orcid.org/0000-0002-5424-1585
Dreissigacker, Volkervolker.dreissigacker (at) dlr.deUNSPECIFIED
Zunft, StefanStefan.Zunft (at) dlr.dehttps://orcid.org/0000-0002-8499-3067
Date:June 2022
Journal or Publication Title:Journal of Energy Storage
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In ISI Web of Science:Yes
DOI :10.1016/j.est.2022.104570
Keywords:Power-to-heat; Electric flow heater; Regenerator storage; Electrothermal energy storage; Storage power plant; Thermodynamic analysis
HGF - Research field:Energy
HGF - Program:Materials and Technologies for the Energy Transition
HGF - Program Themes:High-Temperature Thermal Technologies
DLR - Research area:Energy
DLR - Program:E SP - Energy Storage
DLR - Research theme (Project):E - Thermochemical Processes
Location: Stuttgart
Institutes and Institutions:Institute of Engineering Thermodynamics > Thermal Process Technology
Deposited By: Belik, Sergej
Deposited On:22 Jul 2022 14:58
Last Modified:26 Jul 2022 13:12

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