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Design, build and operation of the CHESTER system

Bauer, Dan and Johnson, Maike and Trebilcock, Felipe and Lecompte, Steven (2022) Design, build and operation of the CHESTER system. 3rd International Workshop on Carnot Batteries, 2022-09-27 - 2022-09-28, Stuttgart, Germany / Online.

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Abstract

Within the framework of the European Union's H2020 project CHESTER, a first laboratory scale Carnot Batterie prototype has been developed and built. This so-called CHESTER-system expands the functionality of a Carnot Batterie by coupling it with a renewable district heating supply and a seasonal thermal energy storage. The CHESTER-system built at DLR Stuttgart is the first of its kind to use a Rankine-based heat pump cycle for the transformation of electricity into heat and an organic Rankine cycle for the re-transformation of heat into electricity, which are connected to each other as an exergetically optimized overall system via a cascade of high-temperature latent heat storage and 2-tank pressurized water storage. The technological design of the plant towards the combination with a seasonal heat storage is unique. It allows the plant to operate in a completely decoupled mode in terms of time and a partially decoupled mode in terms of energy. In sum, this results in a storage and energy management system that is able to absorb electricity and heat independently of each other in terms of time and quantity during charging, store both - heat even seasonally - convert both into each other as needed, and provide both again independently of each other in terms of time and quantity in a completely demand-oriented manner. This contribution will provide insight into the design process, the technical challenges faced in building the system, and will show for the first time the operational results obtained during experimental operation.

Item URL in elib:https://elib.dlr.de/191256/
Document Type:Conference or Workshop Item (Speech)
Title:Design, build and operation of the CHESTER system
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Bauer, DanUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Johnson, MaikeUNSPECIFIEDhttps://orcid.org/0000-0002-1903-9955UNSPECIFIED
Trebilcock, FelipeTECNALIAUNSPECIFIEDUNSPECIFIED
Lecompte, StevenGhent UniversityUNSPECIFIEDUNSPECIFIED
Date:27 September 2022
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:Carnot Battery, high temperature heat pump, thermal energy storage, ORC, power-to-heat-to-power
Event Title:3rd International Workshop on Carnot Batteries
Event Location:Stuttgart, Germany / Online
Event Type:international Conference
Event Start Date:27 September 2022
Event End Date:28 September 2022
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:12 Dec 2022 18:54
Last Modified:24 Apr 2024 20:52

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