Sustainable energy performance in Brazilian social housing: A proposal for a Sustainability Index in the energy life cycle considering climate change

Triana, Maria Andrea; Lamberts, Roberto; Sassi, Paola

doi:10.1016/j.enbuild.2021.110845

Cited by 21 publications

(8 citation statements)

References 31 publications

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“…Additionally, high levels of infiltration through openings in the building envelope can result in energy inefficiencies. It is important to note that behavioral and cultural factors within society can also play a role in contributing to high energy loads [4][5][6][7][8][9].…”

Section: Introductionmentioning

confidence: 99%

Optimizing the View Percentage, Daylight Autonomy, Sunlight Exposure, and Energy Use: Data-Driven-Based Approach for Maximum Space Utilization in Residential Building Stock in Hot Climates

Kamel,

Khalil,

Lakousha

et al. 2024

Energies

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This paper introduces a comprehensive methodology for creating diverse layout generation configurations, aiming to address limitations in existing building optimization studies that rely on simplistic hypothetical buildings. This study’s objective was to achieve an optimal balance between minimizing the energy use intensity (EUI) in kWh/m2, maximizing the views percentages to the outdoor (VPO), achieving spatial daylight autonomy (sDA), and minimizing annual sunlight exposure (ASE). To ensure the accuracy and reliability of the simulation, the research included calibration and validation processes using the Ladybug and Honeybee plugins, integrated into the Grasshopper platform. These processes involved comparing the model’s performance against an existing real-world case. Through more than 1500 iterations, the study extracted three multi-regression equations that enabled the calculation of EUI in kWh/m2. These equations demonstrated the significant influence of the window-to-wall ratio (WWR) and space proportions (SP) on the EUI. By utilizing these multi-regression equations, we were able to fine-tune the design process, pinpoint the optimal configurations, and make informed decisions to minimize energy consumption and enhance the sustainability of residential buildings in hot arid climates. The findings indicated that 61% of the variability in energy consumption can be attributed to changes in the WWR, as highlighted in the first equation. Meanwhile, the second equation suggested that around 27% of the variability in energy consumption can be explained by alterations in space proportions, indicating a moderate correlation. Lastly, the third equation indicated that approximately 89% of the variability in energy consumption was associated with changes in the SP and WWR, pointing to a strong correlation between SP, WWR, and energy consumption. The proposed method is flexible to include new objectives and variables in future applications.

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Section: Introductionmentioning

confidence: 99%

Optimizing the View Percentage, Daylight Autonomy, Sunlight Exposure, and Energy Use: Data-Driven-Based Approach for Maximum Space Utilization in Residential Building Stock in Hot Climates

Kamel,

Khalil,

Lakousha

et al. 2024

Energies

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“…In Pakistan the housing industry faces most significant risk majorly due to inflation, sudden changes in prices and delay (Abdullah & Alshibani, 2021). Therefore, for projects success it is important to stress on the inevitability of managing risk factors as an essential criteria (Triana et al, 2021). Also, there are certain risks which are related to Inflation is an example of both conventional and sustainable project.…”

Section: Introductionmentioning

confidence: 99%

Risk Identification and Assessment in Sustainable Housing Project: A Case of Housing Sector in Pakistan

Ahmad

Sami²,

Khan³

2022

JAFEE

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Purpose: The study aims to identify the risk factors that are associated with the housing projects in Pakistan based on their relative importance. Moreover, this study intends to highlight the extreme, high and low risks that are involved in housing projects. Design/Methodology/Approach: The study adopts the quantitative research method and conducted a survey through a five-point Likert scale questionnaire. The study has collected 168 responses from the project managers, contractors, designers and consultants of housing projects in Pakistan. In order to examine the relative importance of the risk, the study has applied the Relative Importance Index (RII) method to analyse the risks. Findings: The results of the study depict that there are five extreme risks, ten high risks and 13 low risks which may contribute harm the sustainability of the housing projects. Moreover, all the critical risk factors have high probability of occurrence and extreme impact on the sustainability of the housing projects in Pakistan. Implications/Originality/Value: The practitioners are recommended to develop such projects that should not damage the ecology of the region in which they are located. Also the land should be determined on the basis of sociological and environmental consideration and not on land value alone.

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“…Com relação ao desempenho térmico e eficiência energética de edificações alguns autores [5][6] colocam a importância das decisões de projeto nas etapas iniciais considerando tanto o desempenho em longo prazo quanto as mudanças climáticas. A pesquisa de [7] propôs um índice de sustentabilidade para avaliação de estratégias de eficiência energética em HIS no Brasil que incluía indicadores de consumo energético, desempenho térmico, custo e emissões de CO2 no contexto do ciclo de vida e considerando mudanças climáticas. Na mesma linha, o projeto desenvolvido pelo Laboratório de Eficiência Energética em Edificações (LabEEE) para a Secretaria Nacional de Habitação (SNH), com apoio da Cooperação Alemã para o Desenvolvimento Sustentável (Deutsche Gesellschaft für Internationale Zusammenarbeit -GIZ) "Análise de custo/benefício de parâmetros de eficiência energética em HIS" [8], teve como objetivo estabelecer diretrizes para HIS energeticamente eficientes no Brasil a partir de determinar casos otimizados em função de um alto desempenho termoenergético conforme à NBR 15575 e menor custo no ciclo de vida.…”

Section: Introductionunclassified

Custo inicial e benefícios no ciclo de vida de habitações multifamiliares de interesse social energeticamente eficientes

Triana¹,

Lamberts

Melo

et al. 2022

Xix Encontro Nacional De Tecnologia Do Ambiente Construído

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O objetivo é mostrar o aumento no preço total inicial e benefícios no desempenho termoenergetico no ciclo de vida de casos otimizados com eficiência energética para uma edificação multifamiliar de HIS em três cidades e zonas bioclimáticas no Brasil. Foram determinados custos iniciais, operacional e benefícios comparados a um caso típico de HIS. Resultados mostraram o custo do kWh economizado (R$/kWh) em 50 anos, sendo para Florianópolis (ZB3) 0,69, Itumbiara (ZB6) 0,26 e São Luís do Maranhão (ZB8) de 0,34 evidenciando potencial de incorporação de estratégias de eficiência energética.

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Sustainable energy performance in Brazilian social housing: A proposal for a Sustainability Index in the energy life cycle considering climate change

Cited by 21 publications

References 31 publications

Optimizing the View Percentage, Daylight Autonomy, Sunlight Exposure, and Energy Use: Data-Driven-Based Approach for Maximum Space Utilization in Residential Building Stock in Hot Climates

Optimizing the View Percentage, Daylight Autonomy, Sunlight Exposure, and Energy Use: Data-Driven-Based Approach for Maximum Space Utilization in Residential Building Stock in Hot Climates

Risk Identification and Assessment in Sustainable Housing Project: A Case of Housing Sector in Pakistan

Custo inicial e benefícios no ciclo de vida de habitações multifamiliares de interesse social energeticamente eficientes

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