Impact of verticalization in the urban microclimate: the case of Guaxuma district, Maceió-AL, Brazil
This paper investigates the effects of vertical densification in the urban microclimate, to evaluate possible impacts of urban planning decisions on the environmental quality of cities. The research method consisted of a comparative analysis carried out through computer simulations (using ENVI-met s...
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| Μορφή: | Online |
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Universidade Estadual de Campinas
2018
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| Διαθέσιμο Online: | https://periodicos.sbu.unicamp.br/ojs/index.php/parc/article/view/8650267 |
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oai:ojs.periodicos.sbu.unicamp.br:article-8650267 |
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ojs |
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Universidade Estadual de Campinas |
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OJS |
| language |
por |
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Online |
| author |
Nogueira, Aline Maria Pereira Araújo, Iuri Ávila Lins de Bittencourt, Leonardo Salazar Restaino, Gabriella |
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Nogueira, Aline Maria Pereira Araújo, Iuri Ávila Lins de Bittencourt, Leonardo Salazar Restaino, Gabriella Impact of verticalization in the urban microclimate: the case of Guaxuma district, Maceió-AL, Brazil |
| author_facet |
Nogueira, Aline Maria Pereira Araújo, Iuri Ávila Lins de Bittencourt, Leonardo Salazar Restaino, Gabriella |
| author_sort |
Nogueira, Aline Maria Pereira |
| title |
Impact of verticalization in the urban microclimate: the case of Guaxuma district, Maceió-AL, Brazil |
| title_short |
Impact of verticalization in the urban microclimate: the case of Guaxuma district, Maceió-AL, Brazil |
| title_full |
Impact of verticalization in the urban microclimate: the case of Guaxuma district, Maceió-AL, Brazil |
| title_fullStr |
Impact of verticalization in the urban microclimate: the case of Guaxuma district, Maceió-AL, Brazil |
| title_full_unstemmed |
Impact of verticalization in the urban microclimate: the case of Guaxuma district, Maceió-AL, Brazil |
| title_sort |
impact of verticalization in the urban microclimate: the case of guaxuma district, maceió-al, brazil |
| description |
This paper investigates the effects of vertical densification in the urban microclimate, to evaluate possible impacts of urban planning decisions on the environmental quality of cities. The research method consisted of a comparative analysis carried out through computer simulations (using ENVI-met software) to evaluate the impact on temperature and air velocity on thermal comfort conditions in three different scenarios. The first scenario represented the existing occupation patterns, considering a fraction of the Guaxuma neighborhood, the Gurgury settlement, located in Maceio city, Brazil, where an accelerated process of verticalization is in course due to the process of real estate valuation of the region. The second and third scenarios represent the case where buildings with 10 and 20 floors were used, respectively. Results of computational simulations showed that the verticalization in the studied area had a significant impact on the microclimate, mainly regarding the performance of the natural ventilation. The difference between the model with 10 and that with 20 floors was relevant, reaching 1.21m/s in air velocity between the two scenarios. The results suggest that in the Guaxuma neighborhood, the effect of verticalization, as promoted by the new code of buildings, cause changes in the wind dynamics and that the 20-floor scenario presented the best performance to promote thermal comfort in the area. |
| publisher |
Universidade Estadual de Campinas |
| publishDate |
2018 |
| url |
https://periodicos.sbu.unicamp.br/ojs/index.php/parc/article/view/8650267 |
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oai:ojs.periodicos.sbu.unicamp.br:article-86502672018-06-29T15:15:59Z Impact of verticalization in the urban microclimate: the case of Guaxuma district, Maceió-AL, Brazil Impacto da verticalização no microclima urbano: o caso do bairro Guaxuma, em Maceió-AL, Brasil Nogueira, Aline Maria Pereira Araújo, Iuri Ávila Lins de Bittencourt, Leonardo Salazar Restaino, Gabriella Urban microclimate Verticalization Computational simulation Hot and humid weather Natural ventilation Microclima urbano Verticalização Simulação computacional Clima quente e úmido Ventilação natural This paper investigates the effects of vertical densification in the urban microclimate, to evaluate possible impacts of urban planning decisions on the environmental quality of cities. The research method consisted of a comparative analysis carried out through computer simulations (using ENVI-met software) to evaluate the impact on temperature and air velocity on thermal comfort conditions in three different scenarios. The first scenario represented the existing occupation patterns, considering a fraction of the Guaxuma neighborhood, the Gurgury settlement, located in Maceio city, Brazil, where an accelerated process of verticalization is in course due to the process of real estate valuation of the region. The second and third scenarios represent the case where buildings with 10 and 20 floors were used, respectively. Results of computational simulations showed that the verticalization in the studied area had a significant impact on the microclimate, mainly regarding the performance of the natural ventilation. The difference between the model with 10 and that with 20 floors was relevant, reaching 1.21m/s in air velocity between the two scenarios. The results suggest that in the Guaxuma neighborhood, the effect of verticalization, as promoted by the new code of buildings, cause changes in the wind dynamics and that the 20-floor scenario presented the best performance to promote thermal comfort in the area. Este trabalho investiga os efeitos do adensamento por verticalização, no microclima urbano, para avaliar possíveis impactos de decisões de planejamento urbano na qualidade ambiental das cidades. A pesquisa baseou-se no estudo de caso de uma fração do bairro Guaxuma, o loteamento Gurgury, que está situado no litoral norte da cidade de Maceió – AL e vem apresentando sinais de um processo acelerado de verticalização devido ao processo de valorização imobiliária da região. O método da pesquisa consistiu de análise comparativa, utilizando a ferramenta computacional ENVI-met 4.2 para simular temperatura e velocidade do ar, em três diferentes cenários. O primeiro representando o padrão atual de ocupação e outros dois cenários futuros, baseados no novo padrão de uso permitido pela legislação vigente. Um dos cenários futuros apresenta a implantação de edifícios com 10 pavimentos e o outro com edifícios de 20 pavimentos. Os resultados das simulações computacionais demonstraram que a verticalização na área estudada afetou o microclima local, principalmente o desempenho da ventilação natural. A diferença entre os modelos de 10 e o de 20 pavimentos foi relevante, chegando à 1,21 m/s na velocidade do ar entre esses dois cenários. Os resultados sugerem que na escala da faixa litorânea do Bairro Guaxuma, os efeitos da verticalização, tal como promovida pelo novo código de edificações, provoca mudanças na dinâmica do vento, sendo o cenário de 20 pavimentos o que apresentou melhor desempenho para promoção do conforto térmico na área. Universidade Estadual de Campinas 2018-06-29 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Text Texto application/pdf https://periodicos.sbu.unicamp.br/ojs/index.php/parc/article/view/8650267 10.20396/parc.v9i2.8650267 PARC Pesquisa em Arquitetura e Construção; Vol. 9 No. 2 (2018); 72-85 PARC Pesquisa em Arquitetura e Construção; Vol. 9 Núm. 2 (2018); 72-85 PARC Pesquisa em Arquitetura e Construção; v. 9 n. 2 (2018); 72-85 1980-6809 por https://periodicos.sbu.unicamp.br/ojs/index.php/parc/article/view/8650267/18237 Brazil; Contemporary Brasil; Contemporâneo Copyright (c) 2018 Aline Maria Pereira Nogueira, ConfiguraçõesIuri Ávila Lins de Araújo, ConfiguraçõesLeonardo Salazar Bittencourt, Gabriella Restaino https://creativecommons.org/licenses/by/4.0 |