Sand-based Thermal Storage for Building Heating Applications: A District Energy Case Study

This paper presents a new open-source modeling package in the Modelica language for particle-based silica-sand thermal energy storage (TES) in heating applications, available athttps://github.com/sbslab/modelica-sand. Silica sand is an abundant, low-cost, and efficient storage medium for concentrated solar power and electricity generation. Although uncommon today, solid particle TES could benefit building and district heating systems, particularly as building electrification and renewable energy penetration increases. To enable heating system design and evaluation with sand TES, this work developed and open-source released Modelica models from base classes through complete systems with both physical equipment and controls. This paper first presents the new models. Then, we demonstrate their application with a heating plant that supplies steam for district heating while also providing power-to-heat grid services by storing excesses renewable electricity as thermal energy.

Proceedings of the 15th International Modelica Conference 2023, Aachen, October 9-11

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Work Title Sand-based Thermal Storage for Building Heating Applications: A District Energy Case Study
Access
Open Access
Creators
  1. Kathryn Hinkelman
  2. David Milner
  3. Wangda Zuo
Keyword
  1. District energy
  2. Load shift
  3. Modelica
  4. Power-to-X
  5. Renewable energy
  6. Silica sand
  7. Thermal storage
License In Copyright (Rights Reserved)
Work Type Conference Proceeding
Publication Date December 22, 2023
Publisher Identifier (DOI)
  1. https://doi.org/10.3384/ecp204627
Deposited May 10, 2024

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Version 1
published

  • Created
  • Added KHinkelman_Modelica2023_SandHeating__1_.pdf
  • Added Creator David Milner
  • Added Creator Kathryn Hinkelman
  • Added Creator Wangda Zuo
  • Published
  • Updated
  • Updated Keyword, Publisher, Publisher Identifier (DOI), and 2 more Show Changes
    Keyword
    • District energy, Load shift, Modelica, Power-to-X, Renewable energy, Silica sand, Thermal storage
    Publisher
    • The 7th International Energy Conference (ASTECHNOVA 2023)
    Publisher Identifier (DOI)
    • https://doi.org/10.3384/ecp204627
    Description
    • This paper presents a new open-source modeling package in the Modelica language for particle-based silica-sand thermal energy storage (TES) in heating applications, available athttps://github.com/sbslab/modelica-sand. Silica sand is an abundant, low-cost, and efficient storage medium for concentrated solar power and electricity generation. Although uncommon today, solid particle TES could benefit building and district heating systems, particularly as building electrification and renewable energy penetration increases. To enable heating system design and evaluation with sand TES, this work developed and open-source released Modelica models from base classes through complete systems with both physical equipment and controls. This paper first presents the new models. Then, we demonstrate their application with a heating plant that supplies steam for district heating while also providing power-to-heat grid services by storing excesses renewable electricity as thermal energy.
    • This paper presents a new open-source modeling package in the Modelica language for particle-based silica-sand thermal energy storage (TES) in heating applications, available athttps://github.com/sbslab/modelica-sand. Silica sand is an abundant, low-cost, and efficient storage medium for concentrated solar power and electricity generation. Although uncommon today, solid particle TES could benefit building and district heating systems, particularly as building electrification and renewable energy penetration increases. To enable heating system design and evaluation with sand TES, this work developed and open-source released Modelica models from base classes through complete systems with both physical equipment and controls. This paper first presents the new models. Then, we demonstrate their application with a heating plant that supplies steam for district heating while also providing power-to-heat grid services by storing excesses renewable electricity as thermal energy.
    • Proceedings of the 15th International Modelica Conference 2023, Aachen, October 9-11
    Publication Date
    • 2023-10-01
    • 2023-10
  • Updated Creator David Milner
  • Updated Creator Kathryn Hinkelman
  • Updated Publication Date Show Changes
    Publication Date
    • 2023-10
    • 2023-12-22