pvdeg.humidity.dew_yield#
- pvdeg.humidity.dew_yield(elevation: float, dew_point: float, dry_bulb: float, wind_speed: float, n: float)[source]#
Estimate the dew yield in [mm/day]. This may be useful for degradation modeling where the presence of water is a factor. E.g. much greater surface conductivity on glass promoting potential induced degradation (PID).
Calculation taken from: Beysens, “Estimating dew yield worldwide from a few meteo data”, Atmospheric Research 167 (2016) 146-155.
- Parameters:
elevation (int) – Site elevation [km]
dew_point (float) – Dewpoint temperature in Celsius [°C]
dry_bulb (float) – Air temperature “dry bulb temperature” [°C]
wind_speed (float) – Air or windspeed measure [m/s]
n (float) – Total sky cover(okta) This is a quasi emperical scale from 0 to 8 used in meterology which corresponds to 0-sky completely clear, to 8-sky completely cloudy. Does not account for cloud type or thickness.
- Returns:
dew_yield (float) – Amount of dew yield in [mm/day]