Presentations

BPC® WorkFlow for Coupled Daylight and Energy Simulations

To optimize building design, it is necessary to evaluate the complex interaction between energy, indoor climate and daylight availability. The daylight openings are the main deciding parameter and second thereafter is solar shading. Therefore, building simulations needs to be able to take different solar shading technologies into account using the same assumptions for both daylight and thermal indoor climate simulations.
The BPC® workflow has been developed to perform coupled, parametric, daylight and energy simulations to be used for evaluating performance of solar shading systems.
Coupled as the annual daylight and energy simulations rely on the same assumptions for window with shadings, geometry and weather data. Parametric as the workflow is heavily automated using relevant programming tools, greatly reducing the need for manual work. The workflow shows superiority in speed and an increase in accuracy
over conventional methods.
The BPC® workflow is applied to two generic office case geometries, simulating the annual energy and daylight performance varying window and shading configuration, orientation, window to floor ratio and location. It will be shown how results can be checked for accordance with standards and how EN15251, EN17037 and EN14501 can be linked together as a basis for comparison of different solar shading technologies.

Helle Foldbjerg Rasmussen

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