Impact of verticalization in the urban microclimate: the case of Guaxuma district, Maceió-AL, Brazil

Detalhes bibliográficos
Autor(a) principal: Nogueira, Aline Maria Pereira
Data de Publicação: 2018
Outros Autores: Araújo, Iuri Ávila Lins de, Bittencourt, Leonardo Salazar, Restaino, Gabriella
Tipo de documento: Artigo
Idioma: por
Título da fonte: PARC (Campinas)
Texto Completo: https://periodicos.sbu.unicamp.br/ojs/index.php/parc/article/view/8650267
Resumo: 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.
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spelling Impact of verticalization in the urban microclimate: the case of Guaxuma district, Maceió-AL, BrazilImpacto da verticalização no microclima urbano: o caso do bairro Guaxuma, em Maceió-AL, BrasilMicroclima urbanoVerticalizaçãoSimulação computacionalClima quente e úmidoVentilação naturalUrban microclimateVerticalizationComputational simulationHot and humid weatherNatural ventilationThis 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 Campinas2018-06-29info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionTextoinfo:eu-repo/semantics/otherapplication/pdfhttps://periodicos.sbu.unicamp.br/ojs/index.php/parc/article/view/865026710.20396/parc.v9i2.8650267PARC Pesquisa em Arquitetura e Construção; Vol. 9 No. 2 (2018); 72-85PARC Pesquisa em Arquitetura e Construção; Vol. 9 Núm. 2 (2018); 72-85PARC Pesquisa em Arquitetura e Construção; v. 9 n. 2 (2018); 72-851980-6809reponame:PARC (Campinas)instname:Universidade Estadual de Campinas (UNICAMP)instacron:UNICAMPporhttps://periodicos.sbu.unicamp.br/ojs/index.php/parc/article/view/8650267/18237Brazil; ContemporaryBrasil; ContemporâneoCopyright (c) 2018 Aline Maria Pereira Nogueira, ConfiguraçõesIuri Ávila Lins de Araújo, ConfiguraçõesLeonardo Salazar Bittencourt, Gabriella Restainohttps://creativecommons.org/licenses/by/4.0info:eu-repo/semantics/openAccessNogueira, Aline Maria PereiraAraújo, Iuri Ávila Lins deBittencourt, Leonardo SalazarRestaino, Gabriella2020-12-17T19:15:44Zoai:ojs.periodicos.sbu.unicamp.br:article/8650267Revistahttp://periodicos.sbu.unicamp.br/ojs/index.php/parcPUBhttps://periodicos.sbu.unicamp.br/ojs/index.php/parc/oai||parc@fec.unicamp.br1980-68091980-6809opendoar:2020-12-17T19:15:44PARC (Campinas) - Universidade Estadual de Campinas (UNICAMP)false
dc.title.none.fl_str_mv 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
title Impact of verticalization in the urban microclimate: the case of Guaxuma district, Maceió-AL, Brazil
spellingShingle Impact of verticalization in the urban microclimate: the case of Guaxuma district, Maceió-AL, Brazil
Nogueira, Aline Maria Pereira
Microclima urbano
Verticalização
Simulação computacional
Clima quente e úmido
Ventilação natural
Urban microclimate
Verticalization
Computational simulation
Hot and humid weather
Natural ventilation
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
author Nogueira, Aline Maria Pereira
author_facet Nogueira, Aline Maria Pereira
Araújo, Iuri Ávila Lins de
Bittencourt, Leonardo Salazar
Restaino, Gabriella
author_role author
author2 Araújo, Iuri Ávila Lins de
Bittencourt, Leonardo Salazar
Restaino, Gabriella
author2_role author
author
author
dc.contributor.author.fl_str_mv Nogueira, Aline Maria Pereira
Araújo, Iuri Ávila Lins de
Bittencourt, Leonardo Salazar
Restaino, Gabriella
dc.subject.por.fl_str_mv Microclima urbano
Verticalização
Simulação computacional
Clima quente e úmido
Ventilação natural
Urban microclimate
Verticalization
Computational simulation
Hot and humid weather
Natural ventilation
topic Microclima urbano
Verticalização
Simulação computacional
Clima quente e úmido
Ventilação natural
Urban microclimate
Verticalization
Computational simulation
Hot and humid weather
Natural ventilation
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.
publishDate 2018
dc.date.none.fl_str_mv 2018-06-29
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Texto
info:eu-repo/semantics/other
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://periodicos.sbu.unicamp.br/ojs/index.php/parc/article/view/8650267
10.20396/parc.v9i2.8650267
url https://periodicos.sbu.unicamp.br/ojs/index.php/parc/article/view/8650267
identifier_str_mv 10.20396/parc.v9i2.8650267
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv https://periodicos.sbu.unicamp.br/ojs/index.php/parc/article/view/8650267/18237
dc.rights.driver.fl_str_mv https://creativecommons.org/licenses/by/4.0
info:eu-repo/semantics/openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by/4.0
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.coverage.none.fl_str_mv Brazil; Contemporary
Brasil; Contemporâneo
dc.publisher.none.fl_str_mv Universidade Estadual de Campinas
publisher.none.fl_str_mv Universidade Estadual de Campinas
dc.source.none.fl_str_mv 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
reponame:PARC (Campinas)
instname:Universidade Estadual de Campinas (UNICAMP)
instacron:UNICAMP
instname_str Universidade Estadual de Campinas (UNICAMP)
instacron_str UNICAMP
institution UNICAMP
reponame_str PARC (Campinas)
collection PARC (Campinas)
repository.name.fl_str_mv PARC (Campinas) - Universidade Estadual de Campinas (UNICAMP)
repository.mail.fl_str_mv ||parc@fec.unicamp.br
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