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  4. Validation of UWG and ENVI-met models in an Abu Dhabi District, based on site measurements
 
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2019
Journal Article
Title

Validation of UWG and ENVI-met models in an Abu Dhabi District, based on site measurements

Abstract
The city of Abu Dhabi is growing every year in population, urban extent and energy demand. This research focuses on the application of two simulation programs to estimate changes in urban climate associated with continued development in Abu Dhabi: The Urban Weather Generator (UWG) and ENVI-met. Simulation with these two software packages are validated with the site data measured in downtown Abu Dhabi. A comparison analysis (in the different seasons) between the rural data, the simulation output, and the site measurements shows the variations of the UHI in this Middle Eastern city and the potential of the validated tools. The main aims of this study are: (a) to make a seasonal validation of the UWG for the city of Abu Dhabi (referring to urban-rural available data). The tool was previously validated for a year (no seasonal division) for Abu Dhabi, Toulouse, Basel, Singapore, Rome and Barcelona. The simulations are based on the 2016 version of the Urban Weather Generator. The analysis is separated into three main seasons (instead of the full year): winter, spring, summer. (b) To make a seasonal validation and improve the second tool evaluated in this study, ENVI-met 4.0. The software can simulate urban temperature, humidity and wind speed. Guides are proposed for the enhancement of the accuracy of both estimation procedures. Referring to the results, UWG tends to overestimate the canyon temperature during the summer and has a more realistic estimation on the winter season. ENVI-met has better estimations of temperatures during the summer season compared to UWG. Finally, the UWG weather file contributes a more detailed energy model on a mesoscale model. It considers the seasonal effect and shows the impact of the climate on profiling the UHI phenomena. ENVI-met needs improvement in calculating the anthropogenic heat and in calculation of the mean radiant temperature.
Author(s)
Bande, Lindita
United Arab Emirates Univ., Dep. of Architectural Engeneering, Al Ain, UAE
Afshari, Afshin  
Fraunhofer-Institut für Bauphysik IBP  
Al Masri, Dina
Khalifa Univ. of Science and Technology, Dep. of Electrical Engineering and Computer Science, Abu Dhabi, UAE
Jha, Mukesh
Khalifa Univ. of Science and Technology, Dep. of Electrical Engineering and Computer Science, Abu Dhabi, UAE
Norford, Lesslie
Massachusetts Institute of Technol., USA
Tsoupos, Alexandros
United Arab Emirates Univ., Dep. of Architectural Engeneering, Al Ain, UAE
Marpu, Prashanth
Khalifa Univ. of Science and Technology, Dep. of Electrical Engineering and Computer Science, Abu Dhabi, UAE
Pasha, Yosha
Khalifa Univ. of Science and Technology, Dep. of Electrical Engineering and Computer Science, Abu Dhabi, UAE
Armstrong, Peter
Khalifa Univ. of Science and Technology, Dep. of Electrical Engineering and Computer Science, Abu Dhabi, UAE
Journal
Sustainability  
Open Access
DOI
10.24406/publica-r-259726
10.3390/su11164378
File(s)
N-558314.pdf (414.55 KB)
Rights
CC BY 4.0: Creative Commons Attribution
Language
English
Fraunhofer-Institut für Bauphysik IBP  
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