Concrete thermal energy storage for steam generation: A numerical investigation

Shobhana Singh, Kim Sørensen

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review

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Abstract

Establishing enhancement methods to develop cost-effective thermal energy storage technology requires a detailed analysis. In this paper, a numerical investigation of the concrete based thermal energy storage system is carried out. The storage system consists of a heat transfer fluid flowing inside the heat exchanger tubes embedded in a cylindrical shape concrete configuration. Three-dimensional multiphysics model of the storage system is developed to investigate transient conjugate heat transfer between the two mediums, the heat transfer fluid, and the concrete. The model comprehends the dynamics of storing thermal energy in the storage at the temperature range of 350??390 C. To evaluate the performance of the storage system using finned heat exchanger tubes, thermal characteristics such as charging/discharging time, energy, and exergy efficiency are predicted. The developed model satisfactorily demonstrates the dynamic behavior of the concrete based thermal storage system and its sub-processes, and thus offers a suitable framework for future investigations leading to an easier and more economical solution.
Original languageEnglish
Title of host publicationProceedings of the 58th Conference on Simulation and Modelling, SIMS 2017
EditorsMagnus Thor Jonsson
Number of pages7
PublisherLinköping University Electronic Press
Publication dateSept 2017
Pages234-240
Article number032
ISBN (Print)1650-3686
ISBN (Electronic)978-91-7685-417-4, 1650-3740
DOIs
Publication statusPublished - Sept 2017
Event58th SIMS Conference on Simulation and Modelling, SIMS 2017 - Orkustofnun - National Energy Authority, Reykjavik, Iceland
Duration: 25 Sept 201727 Sept 2017

Conference

Conference58th SIMS Conference on Simulation and Modelling, SIMS 2017
LocationOrkustofnun - National Energy Authority
Country/TerritoryIceland
CityReykjavik
Period25/09/201727/09/2017
SeriesLinköping Electronic Conference Proceedings
ISSN1650-3686

Keywords

  • Dynamic model
  • Thermal energy storage system
  • Heat transfer enhancement
  • Energy and exergy efficiency

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