Development of a Modelica-based simplified building model for district energy simulations

Alessandro Maccarini*, Enrico Prataviera, Angelo Zarrella, Alireza Afshari

*Corresponding author for this work

Research output: Contribution to journalConference article in JournalResearchpeer-review

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Abstract

Urban Building Energy Simulation (UBES) is an efficient tool to investigate and subsequently reduce energy demand of urban areas. Nevertheless, UBES has always been a challenging task due the trade-off between accuracy, computational speed and parametrization. In order to reduce these computation and parameterization requirements, model reduction and simplification methods aim at representing building behaviour with an acceptable accuracy, but using less equations and input parameters. This paper presents the development and validation results of a simplified urban simulation model based on the ISO 13790 Standard and written in the Modelica language. The model describes the thermo-physical behaviour of buildings by means of an equivalent electric network consisting of five resistances and one capacitance. The validation of the model was carried out using four cases of the ANSI/ASHRAE Standard 140. In general, the model shows good accuracy and the validation provided values within the acceptable ranges.

Original languageEnglish
Article number012078
Book seriesJournal of Physics: Conference Series
Volume2042
Issue number1
ISSN1742-6588
DOIs
Publication statusPublished - 18 Nov 2021
Event2021 International Hybrid Conference on Carbon Neutral Cities - Energy Efficiency and Renewables in the Digital Era, CISBAT 2021 - Lausanne, Virtual, Switzerland
Duration: 8 Sept 202110 Sept 2021

Conference

Conference2021 International Hybrid Conference on Carbon Neutral Cities - Energy Efficiency and Renewables in the Digital Era, CISBAT 2021
Country/TerritorySwitzerland
CityLausanne, Virtual
Period08/09/202110/09/2021
SponsorÉcole Polytechnique Federale de Lausanne (EPFL), Swiss Federal Office of Energy (SFOE)

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