Design and Dispatch Optimization of Packaged Ice Storage Systems Within a Connected Community

Karl Heine, Paulo Cesar Tabares-Velasco, Michael Deru

Research output: Contribution to journalArticlepeer-review

24 Scopus Citations

Abstract

The traditional implementation of cool thermal energy storage (CTES) must be reimagined within the context of a dynamic grid and smart buildings operating as connected communities. As most buildings do not operate central chillers or connect to district cooling loops, this necessitates a broader use of packaged CTES. Our objective is to begin answering the question of how such packaged CTES should be implemented within a connected community. We do so by presenting a simulation–optimization workflow employing building energy modeling software and a mixed-integer linear program to design and dispatch a packaged CTES technology to achieve minimum total annual cost. We demonstrate this methodology on a seven-building case study using current utility rates and find that total annual cooling energy costs can be reduced by 17.8% compared to baseline, after accounting for the cost of storage. We perform three parametric sensitivity studies to evaluate modeling assumptions and obtain the prioritization of storage procurement as a function of annualized life-cycle cost of storage. We find that a community optimization approach provides significantly different results than individual building optimizations and provides greater savings compared to baseline.

Original languageAmerican English
Article number117147
Number of pages14
JournalApplied Energy
Volume298
DOIs
StatePublished - 2021

Bibliographical note

Publisher Copyright:
© 2021 Elsevier Ltd

NREL Publication Number

  • NREL/JA-5500-78717

Keywords

  • Connected community optimization
  • Cool thermal energy storage
  • Energy storage
  • EnergyPlus
  • Mixed-integer linear programming
  • Packaged ice storage
  • Unitary thermal storage systems

Fingerprint

Dive into the research topics of 'Design and Dispatch Optimization of Packaged Ice Storage Systems Within a Connected Community'. Together they form a unique fingerprint.

Cite this