Calculates the specific enthalpy of air.
Requires the following inputs: temperature, pressure, and relative humidity.
Enthalpy is the measure of the total amount of energy in a thermodynamic system. The specific enthalpy of air is the total energy of both the dry air and the water vapor per unit mass of dry air. Enthalpy is used to calculate cooling and heating processes.
Inputs |
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Slots |
Type |
Default |
Description |
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Humidity |
Numeric |
Null |
The relative humidity in percent (values from 0.0 to 100.0). |
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Temp |
Numeric |
Null |
The actual temperature of the air in Celsius or Fahrenheit (depends on the Units property). Values below –10 degrees Celsius and above 50 degrees Celsius are not valid inputs, and the calculation will result in a value of Null. |
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Pressure |
Numeric |
Null |
The air pressure in kiloPascals or psi. |
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Outputs |
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Slots |
Type |
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Out |
The calculated result in kilojoules/kilogram or BTU/lb (depends on the Units property). If any of the inputs are Null, the result is Null. |
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Properties |
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Slots |
Description |
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Units |
Can be set to one of the following values: ▪US: calculations are performed using US units (Temp in Fahrenheit, Pressure in psi, Out as kJ/kg ▪SI: calculations are performed using Metric units (Temp in Celsius, Pressure in kiloPascals, Out as BTU/lb) |
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