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DOUBLE-SKIN FACADES IN HEALING ENVIRONMENTS: AN APPROACH FOR ENHANCING DAYLIGHTING PERFORMANCE IN SOUTH-ORIENTED PATIENT ROOMS IN CAIRO, EGYPT

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Last updated: 24 Dec 2024

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Abstract

 
Daylighting provision is an efficient approach in achieving a healing environment. Several researches praised the effect of daylight on stress reduction, shorter hospital length of stay, and the increasing of patients' satisfaction. The building façade has the primary role in controlling the indoor environment. In addition to daylighting, Double-Skin Façade (DSF) is an approach that can create a balance between patients' needs without sacrificing energy reduction and thermal comfort in the hot arid desert climate. This paper aimed at investigating the effect of fixed horizontal louvers integration in a multi-story double-skin façade to enhance daylighting performance and visual comfort in south-oriented patient rooms located in Cairo, Egypt. Rhinoceros software was used for modeling the proposed designs coupled with Diva-4-Rhino for daylighting simulations. The effect of changing louver's depth and slats' number resulted in 16 designs that were modeled for examination. Daylighting performance was analyzed by two metrics; Spatial Daylight Autonomy (sDA) and Annual Sunlight Exposure (ASE) on both the room surface floor and bed surface planes to represent daylight distribution and visual discomfort, respectively. Results showed that all cases were successful, achieving 100% sDA value on the bed plane area. However, the sDA and ASE values at the room floor area were different. Three louvered double-skin façade designs have succeeded in meeting sDA and ASE acceptance criteria and were recommended for integrating in patient rooms. Also, it was noticed that the unshaded double-skin façade presented the worst performance.

DOI

10.21608/erj.2020.131829

Keywords

Healing environment, Double-Skin façade (DSF), Patient Rooms, Daylighting Performance, Spatial Daylight Autonomy (sDA), Annual Sunlight Exposure (ASE)

Authors

First Name

Noha

Last Name

Al-Shafaey

MiddleName

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Affiliation

Masters Candidate, Department of Architecture, Faculty of Engineering, Ain Shams University

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First Name

Morad

Last Name

Abdelkader

MiddleName

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Affiliation

Professor of Architecture and Environmental Control, Faculty of Engineering, Ain Shams University.

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City

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Orcid

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First Name

Hanan

Last Name

Sabry

MiddleName

-

Affiliation

Professor of Architecture and Environmental Control, Faculty of Engineering, Ain Shams University.

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City

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Orcid

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First Name

Ashraf

Last Name

Nessim

MiddleName

-

Affiliation

Assistant Professor, Department of Architecture, Faculty of Engineering, Ain Shams University.

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Volume

165

Article Issue

0

Related Issue

19632

Issue Date

2020-03-01

Receive Date

2020-12-23

Publish Date

2020-03-01

Page Start

96

Page End

113

Print ISSN

1110-5615

Article File

ERJ_Volume 165_Issue 0_Pages 96-113.pdf

PDF . 846.7kB

Link

https://erj.journals.ekb.eg/article_131829.html

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https://erj.journals.ekb.eg/service?article_code=131829

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Original Article

Type Code

998

Publication Type

Journal

Publication Title

Engineering Research Journal

Publication Link

https://erj.journals.ekb.eg/

MainTitle

DOUBLE-SKIN FACADES IN HEALING ENVIRONMENTS: AN APPROACH FOR ENHANCING DAYLIGHTING PERFORMANCE IN SOUTH-ORIENTED PATIENT ROOMS IN CAIRO, EGYPT

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Article

Created At

22 Jan 2023