Personne
Stephen Wittkopf
Cette personne n’est plus à l’EPFL
Publications associées (6)
BIPV Visual Assessment for Architecture Retrofitting
Typical architecture designers convey through vague and qualified notions. With the increasing number of PV installations on buildings, architects are forced to corporate with technicians and engineers in the design processes. However, the communications b ...
EPFL Solar Energy and Building Physics Laboratory (LESO-PB)2013Performance of Anidolic Daylighting Systems in tropical climates – Parametric studies for identification of main influencing factors
Jean-Louis Scartezzini, Friedrich Linhart, Stephen Wittkopf
Making daylight more available in buildings is highly desirable, not only for reasons of energy-efficiency, but also for improvement of occupants’ health and well-being. Core-daylighting, that is daylight provision in areas situated at considerable distanc ...
Elsevier2010Singapore’s Zero-Energy Building's daylight monitoring system
Jean-Louis Scartezzini, Stephen Wittkopf, Lars Oliver Grobe
A setup to monitor the daylighting performance of different glazing types in Singapore is presented. The glazing is installed in the facade of four dedicated testing chambers in BCAA's Zero Energy Building in Singapore. These test rooms are equipped with s ...
2010Ray tracing study for non-imaging daylight collectors
Jean-Louis Scartezzini, Jérôme Henri Kämpf, Friedrich Linhart, Stephen Wittkopf, Raphaël Compagnon, Lars Oliver Grobe
This paper presents a novel method to study how well non-imaging daylight collectors pipe diffuse daylight into long horizontal funnels for illuminating deep buildings. Forward ray tracing is used to derive luminous intensity distributions curves (LIDC) of ...
2010Recent Research on Anidolic Daylighting Systems: Highly Reflective Coating Materials and Chronobiological Properties
Jean-Louis Scartezzini, Mirjam Münch, Friedrich Linhart, Stephen Wittkopf
Making daylight more available in buildings is highly desirable for reasons of energy efficiency, visual comfort, occupant well-being and health. The Anidolic Integrated Ceiling (AIC) is a highly efficient daylighting system, designed to gather and redirec ...
2009High Performance Integrated Lighting Systems: Recent Achievements within the Framework of the "Green Lighting" project
Jean-Louis Scartezzini, Friedrich Linhart, Stephen Wittkopf
The „Green Lighting“ project (LESO-PB/EPFL and Swiss Federal Office of Energy) explores different ways to combine advanced day- and artificial lighting technologies for achieving highly energy-efficient office lighting scenarios. This communication gives a ...
EPFL2009