Towards an automated generator of urban building energy loads from 3D building models

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


Buildings in cities are one of the major contributors of carbon emissions worldwide. Thus improving building energy efficiency is one of the key strategies towards sustainable urbanization. Urban building energy modeling (UBEM) is a valuable methodology to tackle these challenges, as it provides users with the energy demand of the building stock, scenarios evaluation, peak loads and other useful analyses. This paper presents an open-source tool to automatically convert 3D building models into ready-to-run Modelica models for urban energy simulations. The software enables users to create 3D building geometries, perform data enrichment and execute model generation of ready-to-run reduced order Modelica models. The software is written in Python and it has been developed as an add-on for the 3D creation application Blender. The first part of the paper describes the general approach and the architecture of the tool. In the second part, a demonstration of the tool’s capabilities is illustrated.
Original languageEnglish
Title of host publicationProceedings of 14th Modelica Conference 2021, Linköping, Sweden, September 20-24, 2021
EditorsMartin Sjölund, Lena Buffoni, Adrian Pop, Lennart Ochel
PublisherModelica Association and Linköping University Electronic Press
Publication date27 Sept 2021
ISBN (Electronic)978-91-7929-027-6
Publication statusPublished - 27 Sept 2021
Event14th Modelica Conference 2021 - Linköping, Sweden
Duration: 20 Sept 202124 Sept 2021
Conference number: 14


Conference14th Modelica Conference 2021
SeriesLinköping Electronic Conference Proceedings

Bibliographical note

Copyright © Modelica Association, 2021


  • Urban energy modeling
  • Workflow automation
  • 3D visual editing
  • Modelica code generation


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