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

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

*Kontaktforfatter

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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.

OriginalsprogEngelsk
Artikelnummer012078
BogserieJournal of Physics: Conference Series
Vol/bind2042
Udgave nummer1
ISSN1742-6588
DOI
StatusUdgivet - 18 nov. 2021
Begivenhed2021 International Hybrid Conference on Carbon Neutral Cities - Energy Efficiency and Renewables in the Digital Era, CISBAT 2021 - Lausanne, Virtual, Schweiz
Varighed: 8 sep. 202110 sep. 2021

Konference

Konference2021 International Hybrid Conference on Carbon Neutral Cities - Energy Efficiency and Renewables in the Digital Era, CISBAT 2021
Land/OmrådeSchweiz
ByLausanne, Virtual
Periode08/09/202110/09/2021
SponsorÉcole Polytechnique Federale de Lausanne (EPFL), Swiss Federal Office of Energy (SFOE)

Bibliografisk note

Funding Information:
This work was financially supported by the Danish Energy Agency, under the Energy Technology Development and Demonstration Programme (EUDP). This work emerged from the IBPSA Project 1, an international project conducted under the umbrella of the International Building Performance Simulation Association (IBPSA). Project 1 will develop and demonstrate a BIM/GIS and Modelica Framework for building and community energy system design and operation.

Publisher Copyright:
© Content from this work may be used under the terms of the Creative Commons Attribution 3.0 Licence.

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