Efficacy of Radiant Energy Veils in Multi-glazing Fenestration

Today buildings, which account for 40% of the total global energy consumption, constitute large glazing surfaces given that windows provide the necessary spacious feel and direct daylighting for occupants. However, 60% of the heat loss through its exterior surface is attributable to glazed surfaces (windows). Therefore, it is not surprising that advanced fenestration products have enormous potential to realize large energy savings and contribute toward the vision of net/near-zero energy buildings. The objective of the present project is to advance the development of alternative smart technologies thereby overcoming the compromise between performance and cost. This will be achieved through the integration of radiant energy coatings on dynamic shades and blinds disposed within a dual pane/glass window system so as to achieve high thermal performance and daylighting window systems. The proposed project will undertake a detailed study of alternative smart window technologies wherein tunable partitioning radiant energy veils are integrated. The focus of the study will be energy savings under a manifold of design conditions and operating scenarios. The study will be based on benchmarked computational models developed with the flexibility to account for a variety of design features, geographic locations (climatic zones), and operating modes.

Faculty Supervisor:

Stefan Zukotynski


Parham Sadooghi




Engineering - computer / electrical




University of Toronto



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