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Process integration of thermal energy storage systems: Evaluation methodology and case studies

Gibb, Duncan and Johnson, Maike and Romani, Joaquim and Gasia, Jaume and Cabeza, Luisa F. and Seitz, Antje (2018) Process integration of thermal energy storage systems: Evaluation methodology and case studies. Applied Energy, 230, pp. 750-760. Elsevier. doi: 10.1016/j.apenergy.2018.09.001. ISSN 0306-2619.

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Official URL: https://www.sciencedirect.com/science/article/pii/S0306261918313023


As a key tool for decarbonization, thermal energy storage systems integrated into processes can address issues related to energy efficiency and process flexibility, improve utilization of renewable energy resources and thus reduce greenhouse gas emissions. However, integration of these systems is dominated by the variety of potential processes in which the storage technologies can be deployed as well as the various benefits they deliver. Therefore, the requirements for thermal energy storage systems vary greatly depending on the chosen application, just as the systems themselves have different capabilities depending on their technical principles. This paper addresses this issue by developing a systematic methodology that approaches the challenge of characterizing and evaluating thermal energy storage systems in different applications in three concrete steps. To begin, a set of guidelines for process analysis has been created to disclose process requirements for storage integration. The methodology continues by explicitly defining the system boundary of a thermal energy storage system, as well as addressing technical and economic parameters. Finally, the approach concludes by determining the benefit of an integrated thermal energy storage system to an application and examines how key performance indicators vary based on the perspectives of different stakeholders. Within this work, the methodology is then applied to two case studies of high-temperature storage in concentrating solar power and cogeneration plants. Also introduced are the concepts of retrofit and greenfield applications, which are used to clarify differences between integrated storage systems. The paper shows how such a systematic approach can be used to consistently analyse processes for storage integration, facilitate comparison between thermal energy storage systems integrated into processes across applications and finally grasp how different interests perceive the benefits of the integrated storage system. This type of systematic methodology for technology integration has not been previously developed and as such, is a novel and important contribution to the thermal energy storage community. In the long term, this work builds the basis for a discussion on benefits of thermal energy storage system integration with diverse stakeholders including storage system designers, process owners and policy makers.

Item URL in elib:https://elib.dlr.de/121555/
Document Type:Article
Title:Process integration of thermal energy storage systems: Evaluation methodology and case studies
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Gibb, DuncanDuncan.Gibb (at) dlr.deUNSPECIFIED
Johnson, MaikeMaike.Johnson (at) dlr.deUNSPECIFIED
Romani, Joaquimjromani (at) irec.catUNSPECIFIED
Gasia, Jaumejaume.gasia (at) diei.udl.catUNSPECIFIED
Cabeza, Luisa F.lcabeza (at) diei.udl.cathttps://orcid.org/0000-0001-5086-872X
Seitz, Antjeantje.seitz (at) dlr.dehttps://orcid.org/0000-0002-3145-7770
Date:15 November 2018
Journal or Publication Title:Applied Energy
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:Yes
DOI :10.1016/j.apenergy.2018.09.001
Page Range:pp. 750-760
Keywords:Thermal Energy Storage (TES); Technology assessment; Process Integration; Process analysis; System boundary; Key Performance Indicators (KPI)
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: Gibb, Duncan
Deposited On:07 Sep 2018 14:11
Last Modified:06 Sep 2019 15:21

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