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Development of a Compressed Heat Energy Storage System Prototype

Trebilcock, Felipe and Ramirez, Miguel and Pascual, Carol and Weller, Thilo and Lecompte, Steven and Hassan, Abdelrahman H. (2020) Development of a Compressed Heat Energy Storage System Prototype. IIR International Rankine Conference 2020, Juli 2020, Glasgow, UK.

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Compressed Heat Energy Storage (CHEST) systems are a specific variant of Pumped Thermal Energy Storage systems (PTES) based on the Rankine cycle. The CHEST system described in this work consists of a high-temperature heat pump, a high-temperature thermal energy storage system combining both latent and sensible heat storages, and an organic Rankine cycle system. The use of working fluids with a low global warming potential and zero ozone depleting potentialare also considered. In this paper the design and operation modes of a CHEST system concept are presented. A numerical model was developed in TRNSYS software, which served to analyse the system´s capabilities not only as a promising power-to-heat-to-power system able to achieve high electrical roundtrip efficiencies, but also as a highly flexible energy storing system when coupled to a Smart District Heating (DH) installation. Finally, recommendations for the definition of an experimental set-up for the validation of the CHEST concept are provided.

Item URL in elib:https://elib.dlr.de/136589/
Document Type:Conference or Workshop Item (Speech)
Additional Information:Copyright © IIF/IIR. Published with the authorization of the International Institute of Refrigeration (IIR): www.iifiir.org
Title:Development of a Compressed Heat Energy Storage System Prototype
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Weller, ThiloThilo.Weller (at) dlr.deUNSPECIFIED
Lecompte, StevenGhent UniversityUNSPECIFIED
Hassan, Abdelrahman H.Universitat Politècnica de València, Zagazig UniversityUNSPECIFIED
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In ISI Web of Science:No
Keywords:High temperature heat pump, thermal energy storage, organic Rankine cycle, power-to-heat-to-power, Carnot battery
Event Title:IIR International Rankine Conference 2020
Event Location:Glasgow, UK
Event Type:international Conference
Event Dates:Juli 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) (old)
Location: Stuttgart
Institutes and Institutions:Institute of Engineering Thermodynamics > Thermal Process Technology
Deposited By: Weller, Thilo
Deposited On:12 Oct 2020 16:05
Last Modified:20 Jun 2021 15:54

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