The Wet Bulb logic block calculates the wet bulb temperature of air given dry bulb temperature and either relative humidity or dew point temperature as configured by the Setup attribute found in the Details dialog box of the block. This block calculates the saturation temperature, which is a very close approximation to the thermodynamic wet bulb temperature. The following table describes the inputs and outputs of the Wet Bulb logic block.
|
Name |
Data Type |
Exposed for Connection by Default |
Description |
Default Value |
|---|---|---|---|---|
|
Inputs |
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|
Dew Point Temperature |
Float |
No |
Indicates the dew point temperature of air, which is the temperature at which moisture condenses out of the air. If the Setup property is DP, this input represents the air dew point temperature that is used to calculate Enthalpy. If the Setup property is RH, this input is ignored. |
14 °C, 57 °F |
|
Dry Bulb Temperature |
Float |
Yes |
Indicates the temperature of air as measured with a simple thermometer. |
25 °C, 77 °F |
|
Elevation |
Float |
No |
Indicates the distance above or below sea level. Below sea level is represented with a negative value. |
0 ft, 0 m |
|
Relative Humidity |
Float |
No |
Indicates the relative humidity of air. If the Setup property is RH, this input represents the air relative humidity that is used to calculate the wet bulb temperature. If the Setup property is DP, this input is ignored. |
50% Range: 0-100% |
|
Outputs |
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|
Wet Bulb Temperature 1 |
Float |
Yes |
Indicates the wet bulb temperature. The wet bulb temperature is the adiabatic saturation temperature defined as the temperature at which water, by evaporating into air, brings the air to saturation at the same temperature. |
18 °C, 64.4 °F |
|
Properties |
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|
Setup |
Enum |
N/A |
Indicates if the relative humidity or dew point temperature is used as the second independent variable to calculate wet bulb temperature. |
RH |
|
Unit Set |
Enum |
N/A |
Indicates the units of measurement used by the block. |
SI, IP |