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Adaptive and dynamic facade systems can respond to changing exterior conditions and user wishes, to ensure energy savings and occupant satisfaction and comfort. Integration of facade and lighting controls with HVAC operation can minimize energy use use while maintaining a comfortable indoor environment. The design and control of dynamic facades is a systems integration challenge that aims to balance several conflicting requirements: daylight vs. solar gains vs. view vs. energy use vs. comfort vs. health and well being. A holistic evaluation is required using integrated building modeling and spatial-temporal performance metrics.
Related projects
Multi-functional dynamic facades integrated with lighting and thermal systems operation through building automation system
Optimization of perimeter zones with respect to energy and comfort
Model-based synchronized shading and lighting control
Fenestration system design (materials, configuration, positioning) and control (coatings, dynamic glass, blinds, louvers, roller shades, light-shelves, awnings) and impact on indoor environment and energy performance
Daylight transmission through complex fenestration systems
Hybrid ray-tracing and radiosity method for fast daylighting calculations
Adaptive personalized daylighting control and embedded smart sending
Glare-based selection of shading systems
Related publications
F. Gilles, W. Bustamante, A. Tzempelikos, S. Vera, “Evaluation of view clarity through solar shading fabrics”, Building and Environment, 212, 108750 (2022).
M. Kim, I. Konstantzos, A. Tzempelikos, “Real-time daylight control using a low-cost, window mounted HDRI sensor”, Building and Environment, 177, 106912 (2020).
A.M. Atzeri, F. Cappelletti, A. Tzempelikos, A. Gasparella, “Comfort and energy performance analysis of different glazing systems coupled with three shading control strategies”, Science and Technology for the Built Environment, 24(5), 470-482 (2018).
H. Shen, A. Tzempelikos, "Daylight-linked synchronized shading operation using simplified model-based control", Energy and Buildings, 145, 200-212 (2017).
A. Tzempelikos, Y-C. Chan, “Estimating detailed optical properties of window shades from basic available data and modeling implications on daylighting and visual comfort”, Energy and Buildings, 126, 396-407 (2016).
J. Xiong, A. Tzempelikos, “Model-based shading and lighting control considering visual comfort and energy use”, Solar Energy, 134, 416-428 (2016).
Y-C. Chan, A. Tzempelikos, I. Konstantzos, "A systematic method for selecting shading properties for glare protection", Energy and Buildings, 92, 81-94 (2015).
H. Shen, A. Tzempelikos, A.M. Atzeri, A. Gasparella, F. Cappelletti, “Dynamic commercial facades versus traditional construction: energy performance and comparative analysis”, ASCE Journal of Energy Engineering, 141(4), 04014041 (2015).
Y-C. Chan, A. Tzempelikos, "Efficient venetian blind control strategies considering daylight utilization and glare protection", Solar Energy, 98, 241-254 (2013).
A. Tzempelikos, H. Shen, “Comparative control strategies for roller shades with respect to daylighting and energy performance”, Building and Environment, 67, 179-192 (2013).
Y-C. Chan, A. Tzempelikos, "A hybrid ray-tracing and radiosity method for calculating radiation transport and illuminance distribution in spaces with venetian blinds", Solar Energy, 86(11), 3109-3124 (2012).
H. Shen, A. Tzempelikos, “Daylighting and energy analysis of private offices with automated interior roller shades”, Solar Energy, 86 (2), 681-704 (2012).
A. Tzempelikos, “Development and implementation of lighting and shading control algorithms in an airport building”, ASCE Journal of Architectural Engineering, 18(3), 242-250 (2012).
K. Kapsis, A. Tzempelikos, A. K. Athienitis, R. Zmeureanu, “Daylighting performance evaluation of a “bottom-up” motorized roller shade”, Solar Energy, 84(12), 2120-2131 (2010).
A. Tzempelikos, “The impact of venetian blind geometry and tilt angle on view, direct light transmission and interior illuminance”, Solar Energy, 82(12), 1172-1191 (2008).
A. Tzempelikos, “Solar optical properties of shading devices: a state-of-the-art review”, Advances in Building Energy Research, 2(1), 211-239 (2008).
A. Tzempelikos, A.K. Athienitis, P. Karava, “Simulation of façade and envelope design options for a new institutional building”, Solar Energy, 81(9), 1088-1103 (2007).
A. Tzempelikos & A.K. Athienitis, “The impact of shading design and control on building cooling & lighting demand”, Solar Energy, 81(3), 369-382 (2007).
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