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Commissioning of high temperature thermal energy storage for high power levels

Johnson, Maike and Fiß, Michael and Dengel, Andreas and Bauer, Dan (2021) Commissioning of high temperature thermal energy storage for high power levels. Enerstock 2021, 08.-11.- Juni 2021, Ljubljana, Slovenia / Online.

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Abstract

A high power and capacity PCM storage unit has been integrated into a heat- and power cogeneration plant in Saarland, Germany. This storage will act as an intermediate back-up to a heat recovery steam generator and gas turbine and is therefore situated in parallel to this unit, also between the feedwater pumps and the steam main. The steam required is superheated at 300°C and 26 bar, resulting in a maximum thermal power of 6 MW. The storage needs to provide a minimum capacity of 1.5 MWh. Operation of this storage unit will increase efficiency and decrease fossil fuel use by reducing the use of a conventional back-up boiler. The filling of the unit with ~32 t of storage material in conjunction with the commissioning of the storage unit is in process and initial data has been acquired. These data will be analyzed and presented. This is part of the project TESIN, funded by the German Ministry of Economic Affairs and Energy.

Item URL in elib:https://elib.dlr.de/147147/
Document Type:Conference or Workshop Item (Speech)
Title:Commissioning of high temperature thermal energy storage for high power levels
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Johnson, MaikeMaike.Johnson (at) dlr.dehttps://orcid.org/0000-0002-1903-9955
Fiß, Michaelmichael.fiss (at) dlr.deUNSPECIFIED
Dengel, AndreasSTEAG New Energies GmbHUNSPECIFIED
Bauer, DanDan.Bauer (at) dlr.deUNSPECIFIED
Date:11 June 2021
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:thermal energy storage, superheated steam, high power, commissioning
Event Title:Enerstock 2021
Event Location:Ljubljana, Slovenia / Online
Event Type:international Conference
Event Dates:08.-11.- Juni 2021
Organizer:energy storage: IEA Technical Collaboration Programme
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: Johnson, Maike
Deposited On:21 Dec 2021 10:28
Last Modified:21 Dec 2021 10:28

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