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0 | Ladybug
1 | AnalyzeWeatherData
2 | VisualizeWeatherData
3 | EnvironmentalAnalysis
4 | Renewables
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Calculates the humidity ratio from the ladybug weather file import parameters
Conversion formulas are taken from the following publications:
Vaisala. (2013) Humidity Conversion Formulas: Calculation Formulas for Humidity. www.vaisala.com/Vaisala%20Documents/Application%20notes/Humidity_Conversion_Formulas_B210973EN-F.pdf
W. Wagner and A. Pruß:" The IAPWS Formulation 1995 for the Thermodynamic Properties of Ordinary Water Substance for General and Scientific Use ", Journal of Physical and Chemical Reference Data, June 2002 ,Volume 31, Issue 2, pp. 387535

Inputs

NameIDDescriptionType
Dry Bulb Temperature_dryBulbTemperatureThe dry bulb temperature from the Import epw component.Goo
Relative Humidity_relativeHumidityThe relative humidity from the Import epw component.Goo
Barometric PressurebarometricPressure_The barometric pressure from the Import epw component.Goo

Outputs

NameIDDescriptionType
OutreadMe!...String
Humidity RatiohumidityRatioThe hourly humidity ratio (kg water / kg air).Goo
EnthalpyenthalpyThe hourly enthalpy of the air (kJ / kg).Goo
Partial PressurepartialPressureThe hourly partial pressure of water vapor in the atmosphere (Pa).Goo
Saturation PressuresaturationPressureThe saturation pressure of water vapor in the atmosphere (Pa).Goo

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