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academic:research-overview

Overview

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

  • A climate-based daylighting metric.

Illuminance Proxy - High Dynamic Range Imaging

  • A HDR method to measure arbitrarily complex illumination fields under real-world conditions.

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

  • In-car measurements of coarse and ultrafine particulates to determine driver exposure.
academic/research-overview.txt ยท Last modified: 2012/10/23 17:55 (external edit)