Responsive skins as a mean to daylight harvesting in patient’s room in region with hot and arid climates

S. Khelil, A.E. Khelil, N. Zemmouri


Abstract: Nowadays architects and engineers are challenged to design an environmentally conscious architecture, aiming to minimize greenhouse gas emissions and energy consumption. The strategy of daylight harvesting is one of the most important requirements ensuring thermal and visual comfort conditions and to minimize energy consumption in buildings in regions with hot and arid climates.

Daylighting has a significant effect on healthcare outcomes. Its positive effect on physiological and psychological human health (staff and patients especially who are bedridden) justify its importance to be considered as the most important physical aspect in the healing environment creation. Most healthcare settings in regions with hot and arid climates are designed without proper consideration of daylighting principles, where healthcare staff, patients and visitors are impacted on negatively when natural light is either excessive or lacking.

Through this research, we are aiming to examine the daylight harvesting effectiveness through the introduction of a responsive shading device in South-East faced patient’s room façade located in a region with hot and arid climates. A quantitative approach is adopted to evaluate the performance of the proposed system by using computer simulation. Through the experimentation results, we conclude that the natural light access in the patients’ room is improved and optimized.

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