Thermal performance and airflow analysis of a new type of Double Skin Façade for warm climates: An experimental study

Soha Matour; Veronica Garcia-Hansen; Sara Omrani; Sina Hassanli; Robin Drogemuller

doi:10.1016/j.jobe.2022.105323

Back

Thermal performance and airflow analysis of a new type of Double Skin Façade for warm climates: An experimental study

Journal article

Peer reviewed

Thermal performance and airflow analysis of a new type of Double Skin Façade for warm climates: An experimental study

Soha Matour, Veronica Garcia-Hansen, Sara Omrani, Sina Hassanli and Robin Drogemuller

Journal of Building Engineering, Vol.62, pp.1-20

2022

DOI: https://doi.org/10.1016/j.jobe.2022.105323

Files and links (1)

url

https://doi.org/10.1016/j.jobe.2022.105323View

Published Version

Abstract

Air cavity overheating

DSF

Interstitial slat blind

Warm climates

Wind-induced ventilation

Double Skin Facades (DSF) integrated with shading devices are increasingly implemented in tall buildings to protect the building from excessive solar radiation. However, the potential overheating of DSF in warm climates leads to lower DSF performance in hot seasons. In this study, a new type of DSF named Interstitial Slat-blind DSF (IS-DSF) has been introduced featuring wind-induced ventilation and insulated shading devices. This research aims to highlight the capabilities of the proposed DSF in a warm climate and identify contributing environmental and geometrical factors for overheating risk reduction of IS-DSF. To this end, an experimental study was conducted in a scaled room located in an outdoor environment on summer days in Brisbane, Australia. First, the test room with and without IS-DSF was studied to assess the performance of IS-DSF for controlling indoor temperature. Next, a parametric evaluation was conducted including geometrical variables (cavity width, slat blind angle) and environmental factors (approaching wind speed and direction, air velocity in the cavity and solar radiation). It was found that the most influential factor for controlling the cavity overheating risk is the air velocity inside the cavity while the effect of blind slats angle is negligible. A cavity airflow velocity threshold was estimated beyond which the overheating of the IS-DSF cavity becomes negligible. Correlations were established to predict cavity airflow velocity from approaching wind speed for IS-DSF with different lateral openings. Overall, IS-DSF showed a reduction in surface temperature of the cavity as a potential advantage compared to conventional DSF to reduce the overheating risk of the DSF's cavity in a warm climate.

Details

Title: Thermal performance and airflow analysis of a new type of Double Skin Façade for warm climates: An experimental study
Authors: Soha Matour (Corresponding Author) - Queensland University of Technology
Veronica Garcia-Hansen (Author) - Queensland University of Technology
Sara Omrani (Author) - Queensland University of Technology
Sina Hassanli (Author) - ARUP
Robin Drogemuller (Author) - Queensland University of Technology
Publication details: Journal of Building Engineering, Vol.62, pp.1-20
Publisher: Elsevier Ltd
DOI: 10.1016/j.jobe.2022.105323
ISSN: 2352-7102
Organisation Unit: University of the Sunshine Coast, Queensland; School of Law and Society
Language: English
Record Identifier: 99679181002621
Output Type: Journal article

Metrics

43 Record Views

7 Times Cited - Web of Science

InCites Highlights

These are selected metrics from InCites Benchmarking & Analytics tool, related to this output

Web Of Science research areas: Construction & Building Technology; Engineering, Civil

UN Sustainable Development Goals (SDGs)

This output has contributed to the advancement of the following goals:

Source: InCites