functionU_Wall
U-value calculated from the wall composition (GenericWall record)
Information
Function for the calculation of a wall U_value
Hypothesis and equations
This function calculates the U-value of a wall from the record containing the wall composition and the surface heat transfer coefficients.
Instructions for use
The inputs of the model are:
- The wall composition constructed according to the GenericWall record of BuildSysPro
- The surface heat transfer coefficients to be used on the interior and exterior surfaces
The output of the function is the wall U-value.
Known limits / Use precautions
None
Validations
Validated model - Mathias BOUQUEREL 07/2019
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Licensed by EDF under a 3-clause BSD-license
Copyright © EDF 2009 - 2019
Author : Mathias BOUQUEREL, EDF (2019)
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Inputs
| Type | Name | Default | Description |
|---|---|---|---|
| BuildSysPro.Utilities.Records.GenericWall | wall_record | Wall composition record | |
| SI.SurfaceCoefficientOfHeatTransfer | hs_int | 7.69 | Internal surface coefficient of heat transfer |
| SI.SurfaceCoefficientOfHeatTransfer | hs_ext | 25 | External surface coefficient of heat transfer |
Outputs
| Type | Name | Default | Description |
|---|---|---|---|
| SI.SurfaceCoefficientOfHeatTransfer | U_value | U_value of the wall |