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Design and build of a first laboratory CHEST system

Weller, Thilo and Jockenhöfer, Henning and Johnson, Maike and Bauer, Dan (2020) Design and build of a first laboratory CHEST system. 2nd International Workshop on Carnot Batteries, 15. Sept. 2020, Stuttgart, Germany.

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Abstract

The CHESTER-concept uses a special Carnot Battery based on a Rankine Cycle - a so called CHEST-system - coupled with a renewable district heating supply to act as an energy hub between the district heating supply and the electrical grid. Thermal energy from solar thermal collectors or another kind of renewable low temperature heat source is converted to high temperature thermal energy by a heat pump. The high temperature thermal energy is stored in a storage cascade consisting of a latent heat storage as well as a sensible heat storage. Upon request, the stored thermal energy can be converted back into electrical energy by an organic Rankine Cycle (ORC). The ORC can be operated in combined power and heat mode. The ratio of thermal and electrical energy supplied to the CHESTER system as well as the ratio of electrical and thermal energy supplied by the CHESTER system after storage and conversion can be varied in a wide range, which allows for a flexible and demand-orientated energy supply. Within the framework of the European Union's H2020 project CHESTER, a first laboratory scale CHESTER-system prototype is being developed and built. The presentation will give an insight into the design process of the individual components and the technical challenges arising from planning and building a real system e.g. control engineering aspects.

Item URL in elib:https://elib.dlr.de/136598/
Document Type:Conference or Workshop Item (Speech)
Title:Design and build of a first laboratory CHEST system
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Weller, ThiloThilo.Weller (at) dlr.deUNSPECIFIED
Jockenhöfer, HenningHenning.Jockenhoefer (at) dlr.deUNSPECIFIED
Johnson, MaikeMaike.Johnson (at) dlr.dehttps://orcid.org/0000-0002-1903-9955
Bauer, DanDan.Bauer (at) dlr.deUNSPECIFIED
Date:2020
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:2nd International Workshop on Carnot Batteries
Event Location:Stuttgart, Germany
Event Type:international Conference
Event Dates:15. Sept. 2020
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: Weller, Thilo
Deposited On:12 Oct 2020 16:06
Last Modified:17 Nov 2020 09:47

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