The results have indicated the minimum, average and maximum illuminance and
daylight factor in the high-rise residential building affected by building shading effect, whereas, 30m of building separation is the best distance between buildings in terms of planning to obtain the acceptable daylight and to enhance the daylight performance in the building.
Realistically, there is no uniform sky that is uniformly illuminated so that values of the percentage
daylight factor in building spaces can be directly measured.
The performance of building for daylighting is commonly evaluated regarding to
daylight factor (DF), through themethod of
daylight factor accepted several years ago by the Commission International de l'Eclairage.
Below we present the
daylight factor and the daily total radiant energy of the courtyard space.
For the simulation of this new single zone atrium house, we used Autodesk Ecotect program to calculate the
daylight factors in the worst case condition (mid winter at noon) and chose a better fenestration design for the house.
Clearly, a static metric such as this was never meant to be a means of measuring or quantifying daylight design, but was meant as a minimum legal daylight standard; however, over the last half-century, due to the lack of a standard, universally accepted dynamic daylight metric,
daylight factor has been the default metric over which criteria for acceptance of daylight performance has been created.
interior surfaces which influence internally reflected component of the
daylight factor calculations are: walls with white plaster [rho] = 0.
An ambitious aim was to make the classrooms fully daylit, but even a complete side wall of glass allows a
daylight factor only of 3.
Reductions in lighting consumption are awarded for increasing
daylight factors; a 20% reduction is available for a
daylight factor greater than 10%, a 10% reduction available for a factor greater than 5%, and a 5% reduction available for a factor greater than 2%.
This study shows that toplighting systems designed to meet a 2%
daylight factor are not optimal.
0 provides live alerts and estate-wide energy generation monitoring across all renewables investments, with support for multiple sites and taking full account of both weather and
daylight factors.
For, while Libeskind would inevitably have tested his compositions himself to understand the visual effect of light falling on internal surfaces (a process which physical models are perfect for as light is scaleless), a more sophisticated animation technique is required for more quantifiable analysis before the lighting consultants can make recommendations to introduce controls where necessary (especially in spaces where the contrasts between low
daylight factors and dramatic shafts of direct sunlight are common).
