Evaluation of Daylight and Cooling Performance of Shading Devices in Residential Buildings in South Korea

Evaluation of Daylight and Cooling Performance of Shading Devices in Residential Buildings in South Korea

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Accounting for more than half of buildings in South Korea, the energy consumed by residential buildings has become a main concern and the cooing demand has rapidly increased.To reduce energy consumption, several passive and active design strategies have generally been applied.However, there has been an increasing demand for high window-to-wall ratios in residential buildings, it is imperative to block sunlight into a building effectively.

Focusing on the reduction of cooling energy consumption in a residential building, the present study assessed the daylight and energy performance of shading devices.Among various Digital health literacy, online information-seeking behaviour, and satisfaction of Covid-19 information among the university students of East and South-East Asia types of shading devices, the Venetian blind, horizontal louver, light shelf, and egg-crate were selected.The illuminance levels in three Influence of Urban Microclimate on Air-Conditioning Energy Needs and Indoor Thermal Comfort in Houses different areas in a building were measured.

In addition, the annual cooling energy consumption by these shading devices was investigated.As a result, both daylight and energy performance varied with different design options of these shading devices.Because of the slight performance difference among shading devices, the artificial loads of two best shading devices were compared.

In sum, the egg-crate shading was the most proper shading device to block sunlight as well as reduce the cooling energy consumption effectively.