Green roof implemented in a building with courtyard: a strategy for thermal cooling in tropical climate

Authors

DOI:

https://doi.org/10.46421/entac.v20i1.5956

Keywords:

Passive strategy, Thermal comfort, Transitional environment., Evaporative cooling

Abstract

Green roof is a recommended strategy to improve environmental comfort in open spaces, due to the potential for evaporative cooling resulting from the evapotranspiration process. The objective of this research is to investigate the impact that the implementation of a green roof in a building with courtyards can have on the thermal environment of the building. The research is carried out through computer simulation, using the Envi-met program. The impact of applying the strategy was analyzed through maps of the differences in microclimatic variables considering a scenario with the presence of the green roof and another without its implementation. At the critical time of 2pm, it was observed a potential for reducing air temperature by up to -0.20ºC, increasing relative air humidity by up to +1% and reducing the average radiant temperature by up to -0.1ºC, affecting not only the courtyard environment, but also adjacent internal environments, such as corridors and rooms, also showing the carrying of cooling effects to outside the building. The green roof is a complementary strategy to improve the environmental conditions of buildings with courtyards focused on the sustainable development of buildings.

Author Biographies

Gabriela Kehrwald Nunes, Universidade Federal de Mato Grosso

Undergraduating in Architecture and Urbanism at the Federal University of Mato Grosso (Cuiabá - MT, Brazil)

.

Ivan Julio Apolonio Callejas, Universidade Federal de Mato Grosso

Doutorado em Física Ambiental pela Universidade Federal de Mato Grosso. Professor Associado da Universidade Federal de Mato Grosso (Cuiabá - MT, Brasil).

Luciane Cleonice Durante, Universidade Federal de Mato Grosso

PhD in Environmental Physics from the Federal University of Mato Grosso. Associate Professor at the Federal University of Mato Grosso (Cuiabá - MT, Brazil).

References

SOFLAEI, F.; Shokouhian, M.; Shemirani, S. M. M. Traditional Iranian courtyards as microclimate modifiers by considering orientation, dimensions, and proportions. Frontiers of Architectural Research, v. 5, n. 2, p. 225-238, 2016. DOI: https://doi.org/10.1016/j.foar.2016.02.002.

ZAMANI, Z.; Heidari, S.; Hanachi, P., Reviewing the thermal and microclimatic function of courtyards. Renewable and Sustainable Energy Reviews, v. 93, p. 580-595, 2018.

CALLEJAS, I. J. A.; Durante, L. C.; Diz-Mellado, E.; Galán-Marín, C. Thermal Sensation in Courtyards: Potentialities as a Passive Strategy in Tropical Climates. Sustainability, 12, 6135, 2020. DOI: https://doi.org/10.3390/su12156135

DIZ-MELLADO, E.; López-Cabeza, V. P.; Rivera-Gómez, C.; Galán-Marín, C.; RojasFernández, J.; Nikolopoulou, M. Extending the adaptive thermal comfort models for courtyards. Building and Environment, v. 203, 108094, 2021.

RIVERA-GÓMEZ, C.; DIZ-MELLADO, E.; GALÁN-MARÍN, C.; LÓPEZ-CABEZA, V. Tempering potential-based evaluation of the courtyard microclimate as a combined function of aspect ratio and outdoor temperature. Sustainable Cities and Society, v. 51, 101740, 2019. DOI: https://doi.org/10.1016/j.scs.2019.101740.

LI, Y., SONG, Y. Optimization of Vegetation Arrangement to Improve Microclimate and Thermal Comfort in an Urban Park. International Review for Spatial Planning and Sustainable Development, v. 7, n. 1, p. 18-30, 2019.

HASEH, R. H.; KHAKZAND, M.; OJAGHLOU, M. Optimal Thermal Characteristics of the Courtyard in the Hot and Arid Climate of Isfahan. Buildings, n. 8, p. 1-22, 2018.

ROSSETI, K. A. C.; DURANTE, L. C.; CALLEJAS, I. J. A.; NOGUEIRA, M. C. J. A.; NOGUEIRA, J. S. Abordagens sistêmicas dos efeitos da implantação de telhados vegetados. Brazilian Geographical Journal: Geosciences and Humanities Research Medium, 4(1), 55-77, 2013.

MATTOS, C. S. Desempenho térmico de um telhado verde inserido em região semiárida. 2015. 68 f. TCC (Graduação) - Curso de Engenharia Civil, Centro Acadêmico do Agreste, Universidade Federal de Pernambuco, Caruaru, 2015.

CALLEJAS, I. J. A.; BIUDES, M. S.; MACHADO, N. G.; DURANTE, L. C.; DE ALMEIDA LOBO, F. Patterns of energy exchange for tropical urban and rural ecosystems located in Brazil central. Journal of Urban & Environmental Engineering, v. 13, n. 1, 2019. DOI: https://doi.org/10.4090/juee.2019.v13n1.069079.

ASSOCIAÇÃO BRASILEIRA DE NORMAS TÉCNICAS. NBR 15220-2: Desempenho Térmico de Edificações - Métodos de cálculo da transmitância térmica, da capacidade térmica, do atraso térmico e do fator solar de elementos e componentes de edificações. Rio de Janeiro, Brasil, p. 1-10, 2005.

SANDRIN, G. M. Aspersores de água em pátios internos: benefícios para a ambiência térmica dos espaços de transição e internos de um edifício localizado em clima tropical. 2023. Trabalho de Conclusão de Curso (Graduação em Engenharia Civil) – Universidade Federal de Mato Grosso, Faculdade de Arquitetura, Engenharia e Tecnologia, Cuiabá, 2023.

HYDROTEC MEMBRANE CORPORATION. Garden Roof Planning Guide. Canadá, 2007. 19 p.

WILLMOTT, C. J. Some comments on the evaluation of model performance. Bulletin of the American Meteorological Society, Lancaster, v. 63, n. 11, p. 1309-1313, 1982.

WORLD METEOROLOGICAL ORGANIZATION. WMO-No. 8. Guide to Meteorological Instruments and Methods of Observation. Genebra: World Meteorological Organization. 2008.

FOROUZANDEH, A. Numerical modeling validation for the microclimate thermal condition of semi-closed courtyard spaces between buildings. Sustainable Cities and Society, 36, p. 327–345, 2018. doi:10.1016/j.scs.2017.07.025.

CALLEJAS, I. J. A; SANTOS, F. A. S.; SILVA, D. T.; DURANTE, L. C; ROSSETI, K. A. C. Espécimes Arbóreos em Pátio Interno: Benefícios Termohigrométicos para a Edificação. In: ENCONTRO NACIONAL DE TECNOLOGIA DO AMBIENTE CONSTRUÍDO, 19., 2022, Canela. Anais... Porto Alegre: ANTAC, 2022. p. 1- 13.

Published

2024-10-07

How to Cite

NUNES, Gabriela Kehrwald; CALLEJAS, Ivan Julio Apolonio; DURANTE, Luciane Cleonice. Green roof implemented in a building with courtyard: a strategy for thermal cooling in tropical climate. In: NATIONAL MEETING OF BUILT ENVIRONMENT TECHNOLOGY, 20., 2024. Anais [...]. Porto Alegre: ANTAC, 2024. p. 1–12. DOI: 10.46421/entac.v20i1.5956. Disponível em: https://eventos.antac.org.br/index.php/entac/article/view/5956. Acesso em: 24 nov. 2024.

Issue

Section

Conforto Ambiental e Eficiência Energética

Most read articles by the same author(s)

1 2 > >> 

Similar Articles

<< < 35 36 37 38 39 40 41 42 43 44 > >> 

You may also start an advanced similarity search for this article.