Illuminance measurements and thermal analysis of test rooms equipped with high performance electrochromic glazing

M.Rottmann & A.Kraft, Gesimat GmbH
T.Häusler & U.Fischer, Brandenburg University of Technology
H.Stenzel, Kuraray Europe GmbH, Division TROSIFOL

Electrochromic smart glazing prototypes of about 1 m² were tested in a PASSYS cell and in an office room for about 1 year. During that period illuminance and thermal measurements were performed in dependence of weathering conditions, seasons and different control strategies of switching. A lot of data were collected. The data analysis delivers important results regarding energy control properties of that windows. A good performance of the panes in the visible and near infrared spectral region (τ_V, τ_e) is an essential requirement for function and advanced energy saving properties. Only with a well adapted switching control of the panes the additional features can be used: preventing glare and overheating in the summer and enabling solar energy gain in the winter. Details on optical switching behaviour and results of solar radiation control tests in facades are presented.

Full Text Article [517 KB]

The Authors

Dr. Matthias Rottmann Managing Director GESIMAT GmbH Dr. Matthias Rottmann is co-founder and Manager Director/Owner of Gesimat GmbH. Since its foundation in 1998 until now Gesimat develop an Electrochromic Safety Glass for architecture application and m... Read more