pollination-annual-irradiance 0.3.8

Annual irradiance recipe for Pollination.

Annual Irradiance

Annual irradiance recipe.

This recipe calculates solar irradiance at each time step provided by a wea file. The fundamental calculation of this recipe is the same as that of Annual Daylight in that a detailed accounting of direct sun is computed at each time step. However, the recipe computes broadband solar irradiance in W/m2 instead of visible illuminance in lux.

The detailed matrices of W/m2 at each time step are stored under results/total. Detailed matrices of just the direct component (W/m2) are output to results/direct. The following values are also recorded for each sensor point under the metrics folder:

• average_irradiance - The average irradiance in W/m2 over the Wea time period
• peak_irradiance - The highest irradiance value in W/m2 during the Wea time period
• cumulative_radiation - The cumulative radiation in kWh/m2 over the Wea time period

The peak_irradiance value is suitable for assessing the worst-case solar load on cooling design days or the highest radiant temperatures that occupants might experience in over the time period of the Wea.