Sensitivity of a lumped-capacitance building thermal modelling approach for energy-market-scale flexibility studies

Topi Rasku, Raimo Simson, Juha Kiviluoma

Research output: Contribution to journalArticleScientific

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Abstract

Despite the wealth of literature on building energy management, building-stock-scale models depicting its impact for energy-market-scale optimisation models are lacking. Thus, an open-source tool called ArchetypeBuildingModel.jl has been developed specifically for this purpose, aggregating building-stock-level statistical and technical data into desired simplified lumped-capacitance thermal models compatible with existing open-source energy system modelling frameworks. This paper aims to demonstrate the feasibility of such simplified thermal models via comparisons against dedicated building simulation software, as well as examine the sensitivities arising from the key modelling and parameter assumptions. Parameter and modelling assumptions corroborated by existing literature achieved acceptable performance according to ASHRAE Guideline 14 across all tested buildings and nodal configurations, although caution is advised when modelling buildings with structures heterogeneous in terms of thermal mass. Nevertheless, ArchetypeBuildingModel.jl performance was found to be robust against uncertain key parameter assumptions, making it plausible for energy-market-scale applications.
Original languageEnglish
JournalNot yet accepted into a journal
DOIs
Publication statusUnpublished - 20 Jun 2023
MoE publication typeNot Eligible

Funding

This research was funded by the Academy of Finland project "Integration of building flexibility into future energy systems (FlexiB)" under grant agreements No 332421 and 333365.

Keywords

  • building energy modelling
  • building simulation

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