Abstract:
It is the aim of this article to explain the testing procedures developed at the University of Technology, Sydney (UTS) and to
valuate the potential natural ventilation and daylighting applications that have arisen from this research. The objectives for
research into this field were to reduce energy costs and increase the sustainability of building stock. From the results of these
experiments actual and potential designs are illustrated and discussed in this article. Multi-storey buildings require substantial
artificial lighting, even with glass fronted facades, the shaded depths of multi-storey buildings require daylight supplementation
and therefore energy. By supplementing the internal lighting levels with daylight, reducing the internal heat load by shading
windows to direct radiation and the utilisation of natural ventilation over air conditioning where possible, significant energy
savings are achievable. This article explores the heating and cooling problems associated with some glass faced curtain wall
multi-storey facades and proposes design changes such as: delivering daylight above the suspended ceiling into the depths of the
building by horizontal light pipes and natural ventilation, utilising stack effect and wind siphonage.
