CFD simulations of turbulent flow and dispersion in built environment: A perspective review

Journal of Wind Engineering and Industrial Aerodynamics, Journal Year: 2024, Volume and Issue: 249, P. 105741 - 105741

Published: April 27, 2024

Language: Английский

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Natural ventilation in vernacular architecture: A systematic review of bioclimatic ventilation design and its performance evaluation

Building and Environment, Journal Year: 2024, Volume and Issue: 253, P. 111317 - 111317

Published: Feb. 17, 2024

Language: Английский

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Holistic overview of natural ventilation and mixed mode in built environment of warm climate zones and hot seasons

Building and Environment, Journal Year: 2023, Volume and Issue: 245, P. 110942 - 110942

Published: Oct. 16, 2023

Language: Английский

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Air change per hour improvement for positive and negative pressure mechanical ventilation facilities systems

Journal of Building Engineering, Journal Year: 2024, Volume and Issue: 83, P. 108414 - 108414

Published: Jan. 4, 2024

Language: Английский

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Examining Wind Flow's Impact on Multi-Storey Buildings: A Quest for Quality Improvement

Production Engineering Archives, Journal Year: 2024, Volume and Issue: 30(1), P. 57 - 66

Published: Feb. 22, 2024

Abstract This scientific article delves into the intricacies of wind flow's impact on multi-storey buildings, presenting results from a series experimental investigations. The research encompasses an examination interactions with buildings varying heights and geometric profiles. Furthermore, it unveils effects tall structures natural ventilation smoke evacuation systems shorter edifices, considering different flow directions. study leverages specialized tunnel measurement techniques for comprehensive analysis wind-induced loads buildings. acquired insights furnish crucial input design single-story temporary modular constructions within densely populated urban areas, subject to stresses. Additionally, they hold potential applicability in advancement energy-efficient technologies strategies realm construction. dataset underscores criticality scrutinizing varied typologies dimensions will allow significantly improve quality efficiency modern future.

Language: Английский

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Influence of cross-ventilation cooling potential on thermal comfort in high-rise buildings in a hot and humid climate

Building and Environment, Journal Year: 2023, Volume and Issue: 248, P. 111096 - 111096

Published: Dec. 5, 2023

The rising cooling energy demand, caused by the increase in global average temperature and frequency of heat waves, is currently leading to a significant electricity consumption. Passive strategies, such as ventilative cooling, can provide acceptable indoor thermal comfort with no or minimal consumption, offering an alternative air conditioning systems buildings. This paper investigates effectiveness natural ventilation iconic post-modernist high-rise building India: Charles Correa's Kanchanjunga Apartments. research, employing CFD simulation paired simulation, demonstrates how cross-ventilation improve efficiency buildings, ensuring affordable conditions even adverse climatic like Indian one. Thanks night-time structural maximum reduction operative up 5.3 °C was achieved compared scenario without 6.4 outdoor peak on hottest day. Consistently Model for Adaptive Comfort, ensures discomfort hours 58 % day total typical monsoon winter aims assist architects policymakers quantifying potential suggesting passive solutions saving.

Language: Английский

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Natural ventilation effectiveness in low-income housing to challenge energy poverty

Energy and Buildings, Journal Year: 2023, Volume and Issue: 304, P. 113836 - 113836

Published: Dec. 18, 2023

The steady rise in global average temperatures due to climate change is leading a significant increase cooling energy demand worldwide. Despite having the least access energy, Global South will experience greatest degree days (CDD), forcing majority of world's population endure highly uncomfortable buildings. As result, it becomes crucial prioritize passive design-based approaches air conditioning, mitigate increasing for active while ensuring equitable space opportunities all. This work, combing CFD simulation with building modeling, evaluates impact natural cross-ventilation and form on improving indoor thermal conditions hot arid climates. analysis, focusing low-income housing prototypes designed by Indian architect Charles Correa, demonstrates how proper design, ventilation efficiency buildings, can ensure comfort even challenging climatic conditions, helping reduce consumption prevent poverty. Natural provides an operative temperature reduction up 3.1°C hottest day 3.9°C typical period day. Even discomfort hours are drastically reduced 31.3% 77.8% respectively.

Language: Английский

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Exploring the Influence of Shared Socioeconomic Pathway Scenarios on School Energy Retrofits: An Emphasis on the Building Envelope

Applied Sciences, Journal Year: 2025, Volume and Issue: 15(4), P. 1839 - 1839

Published: Feb. 11, 2025

The optimization of energy consumption in response to global warming scenarios presents fundamental challenges the built environment, particularly Mediterranean climates, where comfort and efficiency require priority-based adaptation. This study examines effectiveness passive retrofit strategies applied an educational building Granada, Spain, accommodating both teaching residential uses. research uses advanced climatic data based on Shared Socioeconomic Pathways (SSPs), incorporating precise projections climate evolution. Using simulations conducted DesignBuilder, it evaluates three intervention packages for envelope—window replacement, facade insulation, roof insulation—across temporal scenarios: 2024, 2050, 2080. results indicate that measures could reduce heating demand by up 90% future scenarios, while cooling is projected increase more than 80% end century. Additionally, under SSP show 83% demand, emphasizing need integrated active strategies. includes a sensitivity analysis interaction between scenarios. It offers decision-making models retrofitting provides replicable key insights support policies resilience region.

Language: Английский

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Introduction to carbon-neutral buildings and energy-efficient building envelopes

Elsevier eBooks, Journal Year: 2025, Volume and Issue: unknown, P. 1 - 20

Published: Jan. 1, 2025

Language: Английский

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Aerosol dispersion and energy consumption in a mechanically heated and cooled multi-chair dental office with windows routinely opened

Physics of Fluids, Journal Year: 2025, Volume and Issue: 37(4)

Published: April 1, 2025

Natural ventilation via open windows is a common practice widely applied to dilute aerosols in dental offices for all year around China, which, however, would modifies air distribution and leads extra energy consumption cooling heating. This study intends evaluate aerosol removal efficiency multi-chair office with both mechanical (MV) natural (NV), namely, mixed-mode (MMV). It numerically investigates the effect of mode environmental condition on indoor fallow time (FT) duration, as well consumption. The results show that introducing fresh such mechanically ventilated space enhanced airflow mixing particle dispersion. Compared six changes per hour (ACH) MV mode, MMV less than 4 ACH NV does not ensure reduction suspended count indoors. When rate reaches 6 ACH, compartments an average 64.6% counts. However, 3.5 times higher during heating seasons 2.2 compared mode. recommended FT 18–21 min between appointments, 4–6 has required 14–16 min. intended provide references clinic managers balance quality improvements consumption, thereby achieving sustainable environment optimizing operational costs offices.

Language: Английский

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