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DESIGN AND INTEGRATION OF HIGH TEMPERATURE LATENT HEAT THERMAL ENERGY STORAGE FOR HIGH POWER LEVELS

Johnson, Maike and Dengel, Andreas and Hachmann, Bernd and Fiß, Michael and Hempel, Matthias and Bauer, Dan (2018) DESIGN AND INTEGRATION OF HIGH TEMPERATURE LATENT HEAT THERMAL ENERGY STORAGE FOR HIGH POWER LEVELS. In: ASME IMECE. ASME IMECE, 9-15 Nov 2018, Pittsburgh, PA, USA.

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Abstract

A latent heat thermal energy storage unit is being integrated into a heat- and power cogeneration plant in Saarland, Germany. This storage unit system will act as an intermediate backup 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, with a nominal thermal power of 6 MW. The storage unit needs to provide steam for at least 15 minutes, resulting in a minimum capacity of 1.5 MWh. Integration of this storage unit will increase efficiency and decrease fossil fuel use by reducing the use of a conventional backup boiler, while maintaining the steam supply to the customer. The detailed design and a partial build of the storage unit has to-date been successfully concluded, as well as system design and build. Hot and cold commissioning of the storage unit, including filling of the storage unit, will commence following the completion of the storage unit. With the integration of this storage unit, fossil fuel use will be reduced in this power plant. Additionally, the production of superheated steam at a high power level in a latent heat storage unit and a comparison with simulation tools will be possible. This project includes the design, build, commissioning and testing of the storage unit. The paper discusses the detailed design of the storage and system, including the simulations of the system integration.

Item URL in elib:https://elib.dlr.de/124045/
Document Type:Conference or Workshop Item (Lecture)
Title:DESIGN AND INTEGRATION OF HIGH TEMPERATURE LATENT HEAT THERMAL ENERGY STORAGE FOR HIGH POWER LEVELS
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Johnson, Maikemaike.johnson (at) dlr.deUNSPECIFIED
Dengel, AndreasSteag New EnergiesUNSPECIFIED
Hachmann, Berndbernd.hachmann (at) broekelmann.comUNSPECIFIED
Fiß, Michaelmichael.fiss (at) dlr.deUNSPECIFIED
Hempel, Matthiasmatthias.hempel (at) dlr.deUNSPECIFIED
Bauer, DanDan.Bauer (at) dlr.deUNSPECIFIED
Date:13 November 2018
Journal or Publication Title:ASME IMECE
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:PCM, Latent heat storage, integration, co-generation
Event Title:ASME IMECE
Event Location:Pittsburgh, PA, USA
Event Type:international Conference
Event Dates:9-15 Nov 2018
Organizer:ASME
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)
Location: Stuttgart
Institutes and Institutions:Institute of Engineering Thermodynamics > Thermal Process Technology
Deposited By: Johnson, Maike
Deposited On:10 Dec 2018 15:10
Last Modified:31 Jul 2019 20:21

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