Assessing how Wind Environments Impact Urban Building Energy: A Simulation Workflow Application and Evaluation in Shanghai

Sustainable Cities and Society, Journal Year: 2025, Volume and Issue: unknown, P. 106442 - 106442

Published: May 1, 2025

Language: Английский

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In situ air change rate estimation from metabolic CO2 measurement. Summer experimental campaign in a single-family test house.

Building and Environment, Journal Year: 2024, Volume and Issue: 259, P. 111646 - 111646

Published: May 15, 2024

Language: Английский

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Analytical Review of Wind Assessment Tools for Urban Wind Turbine Applications

Atmosphere, Journal Year: 2024, Volume and Issue: 15(9), P. 1049 - 1049

Published: Aug. 30, 2024

Due to the complex nature of built environment, urban wind flow is unpredictable and characterised by high levels turbulence low mean speed. Yet, there a potential for harnessing power carefully integrating turbines within environment at optimum locations. This requires thorough investigation resources use suitable turbine technology correct location—thus, need an accurate assessment proposed site. paper reviews commonly used tools identify tool be prior in areas. In situ measurements, tunnel tests, CFD simulations are analysed reviewed through their advantages disadvantages assessing flows. The literature shows that favoured over other most because relatively easier use, more efficient comparing alternative design solutions, can effectively communicate data visually. concludes with recommendations on best practice guidelines using simulation emphasises importance validating results available avoid any associated uncertainties.

Language: Английский

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Multi-Scale Urban Natural Ventilation Climate Guidance: A Case Study in the Shijiazhuang Metropolitan Area

Atmosphere, Journal Year: 2024, Volume and Issue: 15(6), P. 676 - 676

Published: May 31, 2024

The rapid development of urbanization has caused obstructed urban natural ventilation and the contribution rate is relatively high. Therefore, there an urgent need for planning that should respect local climate to reduce negative impacts. By optimizing construction layout obstruction leave a passageway wind blow in, environment could be improved. This paper presents promising approach at both city community scales. Based on assessment environment, heat island intensity, potential, results revealed winds blowing from western northern mountainous area Shijiazhuang play inlet role which can provide clean air. SSHI SHI were mainly distributed within Second Ring Road, large proportion low potential level. Thus, six first-class corridors thirteen secondary recommended, set adapted dominant direction. Subsequently, analysis map (UCAnMap) was developed considering sensitivity, recommendations provided different zones. relationship between architectural spatial structure efficiency analyzed; increasing height buildings will decrease comfortable zones, overall weaken, so average building typical block controlled 45 m, matches performance requirements. certain correlation with density, as density decreased by more than 10%, zones increase 4–5%.

Language: Английский

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Identification of no-fly zones for delivery drone path planning in various urban wind environments

Physics of Fluids, Journal Year: 2024, Volume and Issue: 36(8)

Published: Aug. 1, 2024

A drone delivery system, characterized by its low energy consumption, high efficiency, and extensive coverage capability, has been adopted as an effective solution to overcome the limitations of traditional ground transportation. However, due strong interactions between urban structures wind, wind environment in low-altitude airspace areas poses significant safety risks for operations, a challenge that remains unresolved. To mitigate these risks, this study presents methodology precisely defining no-fly zones (NFZs) operations using computational fluid dynamics (CFD) simulations. Three hazardous indices—safe, deviation, unsafe—are proposed indicate operation status. High-resolution CFD models environments real city area are coupled with meteorological data provide statistical results three indices. The Reynolds-averaged Navier–Stokes turbulence model is employed simulate two environments, standard under 36 incoming flow directions. Considering eight flight orientations operating horizontal planes at various heights, set maps occurrence probability indices provided. These can be utilized determine safe areas, identify corresponding probabilities deviation unsafe indices, establish efficient paths operations.

Language: Английский

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Iterative Investigation of Wind Environments Influenced by Bulge-Part Geometries of Typical T-Form High-Rise Buildings Using Parametric Modelling, CFD and IAs Analysis

Sustainability, Journal Year: 2024, Volume and Issue: 16(8), P. 3354 - 3354

Published: April 17, 2024

Although T-form buildings have been widely observed in newly constructed high-rise residential communities, there relatively limited investigations into the influence of their geometries on wind environments. This study aims to address this gap by conducting iterative quantitative assessments influences various bulge-part sizes typical surrounding A methodology has employed integrating multiple computational tools, including parametric modeling, Computational Fluid Dynamics (CFD), and Influenced Areas (IAs) analysis. Representative modeled with components, allowing for easy variation sizes. The investigation process involves sequential steps experimentally validated CFD simulations, statistical assessment, subsequent results analysis discussions. Findings could be summarized as follows: (1) according IAs analysis, environments were decreased increased, decrease cause contrary effect; (2) promotion outdoor ventilation caused increase length was more than width correlation coefficients (0.88 > 0.78; 0.88 0.76); (3) it recommended design large bulge parts windward side enhance ventilation. research outcomes provide valuable insightful information development sustainable architectural strategies aimed at optimizing natural

Language: Английский

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Investigation of Power Generation Characteristics and Performance Assessment of the Pumping Kite System for Enhanced Wind Energy Utilization

Published: Jan. 1, 2024

Language: Английский

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Investigation of the Impact of Wind Environment on Urban Building Energy: A Performance Simulation Framework with a Case Study of Shanghai, China

Lecture notes in civil engineering, Journal Year: 2024, Volume and Issue: unknown, P. 225 - 230

Published: Dec. 18, 2024

Language: Английский

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