Design optimisation of solar shading systems for tropical office buildings: Challenges and future trends

Most high-rise office buildings in the tropics, particularly in Malaysia and Singapore, exceed the required level of the energy efficiency index. The implementation of conventional shading systems in the tropics has been proven to have limitations in terms of controlling the quantity and quality of...

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Bibliographic Details
Published in:Solar energy 2018-08, Vol.170, p.849-872
Main Authors: Al-Masrani, Salwa M., Al-Obaidi, Karam M., Zalin, Nor Azizah, Aida Isma, M.I.
Format: Article
Language:English
Subjects:
Adaptive shading systems
Biomimetic
Biomimetics
Design engineering
Design optimization
Dynamic shading systems
Energy consumption
Energy efficiency
Fixed shading systems
High rise buildings
Hybrid systems
Mechanical devices
Office buildings
Shading
Shape morphing skin
Smart materials
Solar energy
Studies
Trends
Tropical environment
Tropical environments
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Summary:Most high-rise office buildings in the tropics, particularly in Malaysia and Singapore, exceed the required level of the energy efficiency index. The implementation of conventional shading systems in the tropics has been proven to have limitations in terms of controlling the quantity and quality of received solar light throughout the year, especially at different solar angles with varying sky conditions. Therefore, the main objective of this work is to investigate the challenges and future trends of solar shading systems by examining their mechanisms, functions and materials for application in tropical regions. This study used evidence review to evaluate various types and models of shading systems based on a systematic method to identify patterns and trends through classification and comparison. Three main categories of shading systems were identified based on the energy involvement and the design approach: (i) passive systems with zero energy use, (ii) active systems that use mechanical devices and (iii) hybrid systems integrated with a biomimetic approach. Specific conclusions were drawn to emphasise the efficiency of developed shading systems in the tropics.
ISSN:0038-092X
1471-1257
DOI:10.1016/j.solener.2018.04.047