Validation of illuminance predictions from lighting simulation programs
The BRE-IDMP validation dataset was used to test Radiance predictions.
Comparison of predictions with measurements in full size offices under real sky conditions.
Measured sky luminance patterns were used in the simulations.
Radiance predictions proved to be capable of high accuracy (+-10%).
The most rigorous validation of illuminance predictions under daylight conditions to date.
Investigation of confounding factors present in validation studies.
Parallax errors in sky simulator domes proved to be fundamental limiting factor for high accuracy work with scale models.
Daylight coefficients
Formulation of a refined daylight coefficient approach using standard Radiance.
Efficient computation of time-varying daylight illuminances based on hourly meteorological data.
The daylight coefficient solution invariant to building orientation and locale - rapidly evaluate design scenarios for multiple orientations and climate locales.
Useful daylight illuminance
Illuminance Proxy - High Dynamic Range Imaging
Spatio-temporal mapping of solar penetration in buildings
Fast, image-based approach to generate spatial and temporal maps of direct solar irradiation in buildings.
Precise, rapid evaluation of parametrically generated complex roof systems.
Irradiation mapping and solar access in dense urban environments
Total annual irradiation is a measure of all the energy from the sun and sky that is incident on a surface over a period of a full year. It is a more realistic measure of solar access than those based on idealised conditions, e.g. CIE overcast sky.
Image-based approach to predict total annual irradiation in complex urban environments (ICUE).
Building applications include BIPV and solar-microclimate responsive facade design.
General applications include evaluation of solar access for buildings and open, public spaces.
Driver exposure to particulates