functionCalculTsky_withoutRH
Information
This function returns the sky temperature from the clearness index Kt and the dry bulb temperature.
Hypothesis and equations
This function returns the sky temperature based on the following equation:

with Kt defined as the ratio between the global horizontal received to the ground and the global horizontal received outside atmosphere.
Bibliography
Longwave sky radiation parameterizations , M. Aubinet, Solar Energy n°53 (version 2) pp. 147-154, 1994
Instructions for use
none
Known limits / Precautions for use
This sky temperature estimation is less precise than the one obtained with CalculTsky_withRH model.
Of course, there are other correlations to calculate the sky temperature.
Validations
Validated model - Amy Lindsay 03/2014
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Licensed by EDF under a 3-clause BSD-license
Copyright © EDF 2009 - 2023
BuildSysPro version 3.6.0
Author : Amy LINDSAY, EDF (2014)
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Inputs
| Type | Name | Default | Description |
|---|---|---|---|
| Modelica.Units.SI.Time | t | Time | |
| Real | T_seche | Dry bulb temperature [K] | |
| Real[10] | G | Solar information vector |
Outputs
| Type | Name | Default | Description |
|---|---|---|---|
| Real | T_ciel | Sky tempereture [K] |