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Title: DIGITAL TWIN OF BRATISLAVA CITY FOR ESTIMATION OF SUSTAINABLE ENERGY PRODUCTION AND UTILIZATION
DIGITAL TWIN OF BRATISLAVA CITY FOR ESTIMATION OF SUSTAINABLE ENERGY PRODUCTION AND UTILIZATION

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Roman Hajtmanek; Martin Uhrik; Vladimir Hain; Alexander Kupko
10.5593/sgem2024/6.1/s27.52
10.5593/sgem2024/6.1
1314-2704
978-619-7603-74-3
English
24
6.1
•    Prof. DSc. Oleksandr Trofymchuk, UKRAINE 
•    Prof. Dr. hab. oec. Baiba Rivza, LATVIA
Green Design and Sustainable Architecture
The paper outlines the process of data collection and processing undertaken to develop a digital twin of the central region of Bratislava city, focused on evaluating its capacity for generating solar and wind energy on an urban scale. Data sources included airborne laser scanning, provided as 3D point clouds, older existing polygonal 3D models, and other available map documents, which were processed to generate a comprehensive polygonal model with semantic information across different layers as buildings, vegetation, water bodies, paved and unpaved terrain. The outcoming digital twin was then used to calculate solar energy potential of the city using Ladybug tools (incident radiation) and weather data from a reference year. The results were compared to the calculations using the model r.sun (total irradiation) with satellite weather data within the GrassGIS software. The newly created digital twin of the city was published as physical model with digitally projected information layers at an exhibition and it will be also published online to be used as inputs to discussions on sustainable energy strategies for smart city development. The model will be further utilized in analysis of wind energy potential using OpenFoam and in statistical models predicting urban heat island formation and popularity of public spaces evaluated by their inhabitants.
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This article was developed with thanks for the support by the subsidy projects 23-05-02-B UrbanGraphica, 031STU-4/2022 Multidimensional model. The model was developed with help of FAD students on the courses Architecture and Mixed reality, Instruments of Digital Design II and within Data[LAB] studio.
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https://doi.org/10.5593/sgem2024/6.1/s27.52
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Proceedings of 24th International Multidisciplinary Scientific GeoConference SGEM 2024
24th International Multidisciplinary Scientific GeoConference SGEM 2024, 1 - 7 July, 2024
Proceedings Paper
STEF92 Technology
International Multidisciplinary Scientific GeoConference Surveying Geology and Mining Ecology Management, SGEM
SWS Scholarly Society; Acad Sci Czech Republ; Latvian Acad Sci; Polish Acad Sci; Russian Acad Sci; Serbian Acad Sci and Arts; Natl Acad Sci Ukraine; Natl Acad Sci Armenia; Sci Council Japan; European Acad Sci, Arts and Letters; Acad Fine Arts Zagreb Croatia; Croatian Acad Sci and Arts; Acad Sci Moldova; Montenegrin Acad Sci and Arts; Georgian Acad Sci; Acad Fine Arts and Design Bratislava; Russian Acad Arts; Turkish Acad Sci.
357-364
1 - 7 July, 2024
website
9818
smart city, digital twin, solar energy, wind energy, sustainability

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