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CIB Conferences

Abstract

Consideration for reducing energy consumption is crucial in sustainable building designs. Vertical Shading Devices (VSDs), as components of sustainable building design, are widely applied in buildings in tropical environments to minimize internal heat gains towards reducing cooling energy consumption. However, their influence on building performance is based on optimal designs of orientation and depths which are not comprehensively included in recent studies. In this study, the effects of different VSD configurations on building ventilation and energy performance in five cooling-dominated cities have been investigated using models in Building Energy Simulation Test (BESTEST) in EnergyPlus and jEPlus. The relationship between VSD orientation and depth and shading performance parameters such as solar gains, mean radiant temperature, total ventilation loss, and cooling energy were evaluated. The results show that building solar gains and ventilation flowrates increased with the increasing VSD tilt angles. Also, the VSDs’ internal temperature decreasing capacity increased as the depths increased. The changes in VSD configurations were found to reduce solar gains by 84.7%, indoor temperature by 1.47°C, and ventilation loss by 60%. This study can help building designers to comprehend energy and ventilation performance of VSD configurations and provide insights and references for sustainable shading design.

The paper will be presented:

In-person

Primary U.N. Sustainable Development Goals (SDG)

Sustainable Cities and Communities - - Make cities and human settlements inclusive, safe, resilient and sustainable

Secondary U.N. Sustainable Development Goals (SDG)

Responsible Consumption and Production - - Ensure sustainable consumption and production patterns

Primary CIB Task Group OR Working commission

TG124 – Net Zero Carbon Building Design and Construction Practices

Secondary CIB Task Group OR Working commission

TG97 – Nature-Based Solutions for Climate Resilient Buildings and Communities

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