Impact of Central Courtyard Proportions on Passive Cooling Potential in Hot and Humid Regions (Case Study: Single-story Buildings in Bandar Abbas)

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Saligheh E.; Saadatjou P.

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Journal Paper

Paper Information

Journal: NAQSHEJAHAN Year:2020 | Volume:10 | Issue:2 Page(s): 137-152

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Information Journal Paper

Title

Impact of Central Courtyard Proportions on Passive Cooling Potential in Hot and Humid Regions (Case Study: Single-story Buildings in Bandar Abbas)

Author(s)

Saligheh E. | Saadatjou P. | Issue Writer Certificate

Keywords

Windphil ArchitectureQ1

CourtyardQ1

CoolingQ1

ShadingQ1

VentilationQ2

EnergyQ1

Abstract

Aims: The central Courtyard can play an important role in reducing Energy consumption, increasing Shading, enhancing the flow of passage and creating evaporative Cooling in windphil buildings. This paper seeks to examine the role of central Courtyard proportions in the amount of Shading, radiant Energy received, Cooling load and natural Ventilation potential. Methods: The research method in this research is a descriptive-analytical one in which the software of Design builder 6. 1. 2. 009, Computational Fluid Dynamics (CFD), and Ecotect 2011 were applied to investigate the effect of central yard width change on wind flow pattern, Shading pattern and the amount of radiant Energy received and the calculation Cooling load of Windphil Architecture. Findings: Comparing U-shaped quadruple buildings with a central Courtyard with a fixed volume-to surface ratio, the 4-meter-wide Courtyard building model is the best option. Changing the width of central Courtyard from 4 to 10 meters resulted in a %13 increase in Cooling load and a %10 decrease in shaded areas. However, increasing the width of the Courtyard from 4 to 6 meters resulted in a speed reduction of 18. 75% and a change of width from 6 to 10 meters lead to a 6% increase in flow rate. Conclusion: Increasing the width of the central Courtyard degrades the passive Cooling potential of the building. As a result, a Courtyard would perform as an efficient passive Cooling system when its proportions are approximately 1: 2. 5.

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APA: Copy

Saligheh, E., & Saadatjou, P.. (2020). Impact of Central Courtyard Proportions on Passive Cooling Potential in Hot and Humid Regions (Case Study: Single-story Buildings in Bandar Abbas). NAQSHEJAHAN, 10(2 ), 137-152. SID. https://sid.ir/paper/378741/en

Vancouver: Copy

Saligheh E., Saadatjou P.. Impact of Central Courtyard Proportions on Passive Cooling Potential in Hot and Humid Regions (Case Study: Single-story Buildings in Bandar Abbas). NAQSHEJAHAN[Internet]. 2020;10(2 ):137-152. Available from: https://sid.ir/paper/378741/en

IEEE: Copy

E. Saligheh, and P. Saadatjou, “Impact of Central Courtyard Proportions on Passive Cooling Potential in Hot and Humid Regions (Case Study: Single-story Buildings in Bandar Abbas),” NAQSHEJAHAN, vol. 10, no. 2 , pp. 137–152, 2020, [Online]. Available: https://sid.ir/paper/378741/en

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