Abstract & Biography | Dr. Stijn Kragt

Smart window films for heat and light management in buildings
Dr. Stijn Kragt

ClimAd Technology BV

Solar heat through glazing causes overheating of buildings. Therefore, there is an increasing energy demand for artificial cooling. In this lecture, I will discuss a variety of innovative window films which impact the entrance of solar heat and daylight in buildings. The films can reject solar heat all year through or adapt based on the outdoor temperature or light conditions. They can be applied as retrofit on existing glazing or be integrated inside new glazing. Besides color-neutral, also films with viewing-angle dependent reflective colors will be shown, providing a new tool to combine energy-efficiency with eye-catching architectural designs.

Stijn is an enthusiastic, curiosity-driven researcher and entrepreneur, aiming to help solving problems that we are facing in nowadays society. In 2015, he obtained his Master of Science degree in Chemistry at the Radboud University in Nijmegen and specialized in Physical Chemistry. Thereafter, he started his PhD research at the Eindhoven University of Technology in the group of ‘Stimuli-responsive Functional Materials and Devices’ under supervision of Prof. Dr. Albert P.H.J. Schenning and Prof. Dr. Dirk J. Broer, where he developed materials which change their reflective color upon temperature changes. Together with his current business partner, prof. dr. Guofu Zhou, they saw the potential of these materials for heat and light management in buildings and founded the start-up ClimAd Technology in 2019, of which he currently acts as CTO. Next to this, he became a postdoctoral researcher at the faculty of Architecture and the Build Environment of the Delft University of Technology in 2020, where he gains insights on integration and impact of innovative materials on a building’s energy and daylight performance.