Estudio del confort térmico en la ciudad de São Paulo utilizando el modelo ENVI-MET

Carfan, Ana Claudia; Galvani, Emerson; Nery, Jonas Teixeiras

doi:10.14350/rig.32468

Cited by 12 publications

(5 citation statements)

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“…However, further studies must be conducted in other climate zones to understand the behavior of UWG in the specific zones. Additionally, this software considers the canyon as one homogenous entity [39,40]. Table 7 that shows the difference between the urban data and the main scenarios that are considered in this study.…”

Section: Discussionmentioning

confidence: 99%

“…Figure 5 shows a typical urban canyon with the factors included in the UWG calculation (materials of the buildings, road, vegetation, AH due to traffic). Detailed information about the code is given in the annex section [24,30,40,41]. Figure 5.…”

Section: Residential Commercial Offices Restaurant Hotel Hospital Commentioning

confidence: 99%

“…As there are several sensors measuring the air quality in the main island, this method gives reliable results for the city. The top-down method is used to calculate the AH levels and the calibration is done through the bottom-up method based on the satellite images of the area under study [2,40,42]. Figure 6 shows an estimation of the traffic-related anthropogenic heat rate in Abu Dhabi [2].…”

Section: Residential Commercial Offices Restaurant Hotel Hospital Commentioning

confidence: 99%

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Validation of UWG and ENVI-Met Models in an Abu Dhabi District, Based on Site Measurements

et al. 2019

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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. Sustainability 2019, 11, 4378 2 of 20districts. The latest study shows that the release of the anthropogenic heat creates an unstable layer in the lower level of the atmosphere-even during the night-compared to the countryside [2]. Therefore, including the anthropogenic heat, as a parameter in the simulations, is relevant for models prepared for the climate simulations [3,4].The urban microclimate is strongly connected to the anthropogenic heat released in the canyon. Cities with an efficient public transportation system and a central district cooling plant have a positive impact in improving the urban microclimate [5]. Annual average values show that cities such as Chicago (53 W/m 2 ), Montreal (99 W/m 2 ) and Budapest (43 W/m 2 ) have anthropogenic heat variation from 20 to 40 W/m 2 in summer, and from 70 to 210 W/m 2 in winter. The anthropogenic heat and the traffic schedule follow the same graphic distribution, having one peak in the morning and one peak in the evening [6].Abu Dhabi has developed rapidly over the past 60 years. During this time the urban settlement has grown from the main island towards the desert. The buildings located on the main ...

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Section: Discussionmentioning

confidence: 99%

Section: Residential Commercial Offices Restaurant Hotel Hospital Commentioning

confidence: 99%

Section: Residential Commercial Offices Restaurant Hotel Hospital Commentioning

confidence: 99%

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Validation of UWG and ENVI-Met Models in an Abu Dhabi District, Based on Site Measurements

et al. 2019

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“…Their results showed that the building layout patterns' orientation with respect to wind has a significant effect on both the wind environment and thermal comfort, and when the longer facade of the building is parallel to the prevailing wind direction, the wind speed at the edges of the building increases. Carfan et al [21] studied the wind environment and thermal comfort in both a densely built district and a city park using ENVI-met software. They showed that the wind speed of the high building density area is lower, and the predicted mean vote (PMV) value of both study areas is nearly the same.…”

Section: Introductionmentioning

confidence: 99%

The Effects of Residential Area Building Layout on Outdoor Wind Environment at the Pedestrian Level in Severe Cold Regions of China

et al. 2017

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Abstract:In recent years, there has been a frequent occurrence of extremely cold conditions which has had a serious impact on the life of residents of buildings in various locations around the world. However, there have only been a very limited number of studies on the effects of residential area building layout on the winter wind environments, which led to a lack of quantitative guidance for residential area planning in severely cold regions. This study aims to reveal the relationship between (1) the residential areas' building density, floor area ratio, wind projection angle, average building height, and relative position of high-rise buildings, and; (2) the mean wind velocity ratio at pedestrian level in severe cold regions. In this study, the pedestrian-level outdoor wind environments in 24 typical residential areas of Harbin, China, are simulated using ENVI-met software. The results show that the relative position of high-rise buildings in multi-high-level mixed residential areas has little influence on the mean wind velocity ratio, and the maximum difference is 0.04. The factors of building layout have little influence on the mean wind velocity ratio of multistory residential areas. However, a significant linear correlation exists between the mean wind velocity ratio of high-rise residential areas and both the building density and wind projection angle. The prediction model of the mean pedestrian-level wind velocity ratio was then established.

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“…This software has previously been used in combination with aerial thermography to calibrate simulated models comparing urban surface temperatures (Fabbri and Costanzo, 2020). For calculating T MRT, it has also been widely used and validated by comparing the results with both other simulation tools and conventional methods Naboni et al, 2017;Gál and Kántor, 2020;Claudia Carfan, 2020).…”

Section: Microclimate Urban Simulation Verification Of T Mrtmentioning

confidence: 99%

Assessment of Aerial Thermography as a Method of in Situ Measurement of Radiant Heat Transfer in Urban Public Spaces

Melgar¹,

Rodriguez²,

Cordero³

et al. 2022

SSRN Journal

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Estudio del confort térmico en la ciudad de São Paulo utilizando el modelo ENVI-MET

Cited by 12 publications

References 0 publications

Validation of UWG and ENVI-Met Models in an Abu Dhabi District, Based on Site Measurements

Validation of UWG and ENVI-Met Models in an Abu Dhabi District, Based on Site Measurements

The Effects of Residential Area Building Layout on Outdoor Wind Environment at the Pedestrian Level in Severe Cold Regions of China

Assessment of Aerial Thermography as a Method of in Situ Measurement of Radiant Heat Transfer in Urban Public Spaces

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