Performance analysis of a wind tower in combination with an underground channel

Sadeghi, Hosein; Kalantar, Vali

doi:10.1016/j.scs.2017.12.002

Cited by 27 publications

(3 citation statements)

References 32 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In numerical studies, turbulence sensitivity analysis is a critical and indispensable component that verifies that the chosen model can accurately determine the flow pattern within the domain with precision. This study used mesh and boundary conditions similar to the previous study; therefore, a similar turbulence model (the standard k-ε model) was chosen to perform the CFD analysis, which was consistent with other prior investigations' findings described in [29,[37][38][39][40].…”

Section: The Effect Of the Uww Angle On The Ventilation Performance A...mentioning

confidence: 85%

The Windcatcher: A Renewable-Energy-Powered Device for Natural Ventilation—The Impact of Upper Wing Walls

Nejat,

Fekri,

Sheikhshahrokhdehkordi

et al. 2024

Energies

View full text Add to dashboard Cite

In recent years, there has been increased interest in natural ventilation solutions as a means to achieve sustainable and energy-efficient building design. Windcatchers, ancient Middle Eastern architectural elements, have surfaced as viable passive cooling devices in modern architecture, thereby enhancing interior air quality and reducing the reliance on mechanical ventilation systems. Integrating upper wing walls (UWWs) is hypothesized to augment a windcatcher’s effectiveness by optimizing wind capture, air circulation, and thermal regulation. Therefore, this study aimed to explore the influence of incorporating a two-sided windcatcher with UWWs, with a particular emphasis on the effect of the UWW angle on ventilation performance within building spaces. To achieve this aim, a series of numerical simulations were conducted to assess the synergy between the windcatcher and the wing wall configuration with varying UWW angles and under varying wind speed conditions. As the first step of the research methodology, the CFD model was validated through a comparison between the numerical results and the experimental data. The findings showed good agreement between these methods. In the next phase, windcatchers with different UWW angles spanning the range of 0° to 90° were subjected to rigorous evaluation. The results revealed that the configuration with a 30° angle exhibited the optimal performance concerning critical ventilation parameters encompassing the airflow rate, air change rate, and mean age of air. Finally, the selected configuration underwent an evaluation under diverse wind speed conditions, which affirmed that even under low-wind-speed conditions, the windcatcher provides ventilation levels that align with the standard requirements.

show abstract

Section: The Effect Of the Uww Angle On The Ventilation Performance A...mentioning

confidence: 85%

The Windcatcher: A Renewable-Energy-Powered Device for Natural Ventilation—The Impact of Upper Wing Walls

Nejat,

Fekri,

Sheikhshahrokhdehkordi

et al. 2024

Energies

View full text Add to dashboard Cite

show abstract

“…Researchers agreed that wind catchers are practically useful in regions far away from metropolitan facilities. Therefore, wind towers are a smart and sustainable method of ventilation inside buildings [12]. Wind catchers are effective for buildings sited with the possibility of poor ventilation, particularly in situations where it is not possible for fresh wind to enter through windows in all parts of a building or buildings with limited openings.…”

Section: Introductionmentioning

confidence: 99%

Wind Catchers: An Element of Passive Ventilation in Hot, Arid and Humid Regions, a Comparative Analysis of Their Design and Function

Chohan

Awad

2022

Sustainability

View full text Add to dashboard Cite

This review study circumscribes wind catchers as vernacular zero-energy systems of passive ventilation. The research reviews various types of wind catchers and analyses their design, effectiveness and utility in building design. Furthermore, the study documented some of the technological transformations of wind catchers and their adaptation (functional and symbolic) in various regions. In this context, the complex design data of various wind catchers were appraised, and adaptable design data is compiled in “Geographical and Regional Influences on Wind Catcher Design “ and “Performance Evaluation of Wind Catchers” of study. The design analysis uncovered interesting facts about the effectiveness of various types of wind catchers; for example, a wind catcher with one side could be employed only as a wind scoop, whereas a multi-sided wind catcher can work simultaneously as a wind scoop and a heat sink (exhaust). The study also revealed that, in the near past, wind catchers were extensively used for ventilation. However, in modern times they are being adapted as an element of urban and architectural (identity) rather than a functional element. Finally, the end results of this study present candid suggestions for using wind catchers in modern buildings and chalks out blueprints (design guidelines) to adapt wind catchers. Towards the adaptation of wind catchers in modern buildings, this study has worked out 14 key design modifications in different types of wind catcher. Most of these findings are related to improving wind intake, preventing dust and rain penetration, the size of a wind catcher’s opening and shaft.

show abstract

“…In addition, increasing the air humidity improves the occupants' thermal comfort in dry climates [23]. Integrating underground water canals with windcatchers was a traditional approach to cool and humidify the indoor environment to enhance comfort [23,24].…”

Section: Introductionmentioning

confidence: 99%

CFD modeling of the building integrated with a novel design of a one-sided wind-catcher with water spray: Focus on thermal comfort

Foroozesh

Hosseini

et al. 2022

Sustainable Energy Technologies and Assessments

View full text Add to dashboard Cite

Performance analysis of a wind tower in combination with an underground channel

Cited by 27 publications

References 32 publications

The Windcatcher: A Renewable-Energy-Powered Device for Natural Ventilation—The Impact of Upper Wing Walls

The Windcatcher: A Renewable-Energy-Powered Device for Natural Ventilation—The Impact of Upper Wing Walls

Wind Catchers: An Element of Passive Ventilation in Hot, Arid and Humid Regions, a Comparative Analysis of Their Design and Function

CFD modeling of the building integrated with a novel design of a one-sided wind-catcher with water spray: Focus on thermal comfort

Contact Info

Product

Resources

About