Abstract: Lighting considerations in integrated building simulation: a review of the ESP-r to Radiance link
Iain MacDonald (University of Strathclyde, Scotland)
 
Daylight availability and its use to offset artificial lighting in buildings can have profound effects on the indoor environment and energy usage patterns in buildings. To appreciate these effects two open source tools have been integrated: Radiance and ESP-r. This work has been undertaken over the last decade and has seen several contributions from MSc student projects to major European research projects (e.g. Daylight Europe, Image). To set the scene current capabilities are reviewed, this will be followed with an analysis of where lighting simulation capabilities can be advanced/improved to enable future use of these powerful tools. These areas include the use of daylight coefficients, glare assessment, solar irradiation and realistic values for surface properties.