Analysing radiation transport trough complex fenestration systems

This paper briefly reviews recent research into the modelling of complex fenestration systems, before presenting some results obtained by the use of a new (developing) simulation model, utilising Monte Carlo Methods and Geometric Optics (ray tracing). In particular, the distribution of (solar) radiation by windows containing (interstitial) venetian blinds is examined, since they continue to represent conventional window management practice, and radiation transport through them is inherently complex. These fenestration systems are considered in isolation as a ‘single’ component, and the material (radiative) properties of the individual blind slats are explored. This would be expensive and/or difficult to achieve using alternative techniques such as full-scale experimental rigs or scale modelling, particularly for thermal data.