modelFractionSolarDistrib
Redistribution of short-wave radiation entering a zone on each wall and window - based on absorptance/transmittance coefficients, surfaces and form factors
Extends from RadDistrib (Partial model for the construction of radiative distribution models).
Information
Hypothesis and equations
This model distributes the radiation received in proportion to the computed solar fractions.
Notes: The computation of solar fractions is done via the method described in the BESTEST procedure
Bibliography
none
Instructions for use
none
Known limits / Use precautions
none
Validations
Validated model (BESTEST) - Aurélie Kaemmerlen 09/2010
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Licensed by EDF under a 3-clause BSD-license
Copyright © EDF 2009 - 2023
BuildSysPro version 3.6.0
Author : Aurélie KAEMMERLEN, EDF (2010)
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Parameters
| Type | Name | Default | Description |
|---|---|---|---|
| Real[np] | FFp | {0.49420, 0, 0.14610, 0.05681, 0.10680, 0.10680} | Form factor between walls and floor for the calculation of the first reflection/ BESTEST : 1-ceiling, 2-floor, 3-North, 4-South, 5-East, 6-West |
| Real[nf] | FFf | {0.08929} | Form factor between windows and floor for the calculation of the first reflection |
| Opaque surfaces | |||
| Integer | np (from RadDistrib) | 6 | Number of opaque surfaces |
| Real[np] | Sp (from RadDistrib) | Walls surface areas | |
| Windows | |||
| Integer | nf (from RadDistrib) | 1 | Number of windows |
| Real[nf] | Sf (from RadDistrib) | Windows surface areas | |
| Real | AbsF | Short-wave diffuse absorption coefficient of windows | |
| Real | TrF | Short-wave diffuse transmission coefficient of windows | |
| Opaque walls | |||
| Real | AbsP | Short-wave diffuse absorptance of walls | |
Connectors
| Type | Name | Default | Description |
|---|---|---|---|
| Modelica.Blocks.Interfaces.RealOutput[np] | FLUXParois (from RadDistrib) | Long-wave and/or short-wave radiation transmitted to opaque surfaces / BESTEST : 1-ceiling, 2-floor, 3-North, 4-South, 5-East, 6-West | |
| Modelica.Blocks.Interfaces.RealOutput[nf] | FLUXFenetres (from RadDistrib) | Long-wave and/or short-wave radiation transmitted to windows/ BESTEST : 1-South OR 1-East, 2-West | |
| BuildSysPro.BoundaryConditions.Solar.Interfaces.SolarFluxInput | FluxEntrant | Solar irradiation to be redistributed |
Components
| Type | Name | Default | Description |
|---|---|---|---|
| Real | SFp | Walls solar fractions / BESTEST : 1-ceiling, 2-floor, 3-Northe, 4-South, 5-East, 6-West | |
| Real | SFf | Windows solar fractions/ BESTEST : 1-South OR 1-East, 2-West |