modelZoneCrawlSpaceGlazed
Extends from ZoneCrawlSpace (Model of a zone on a crawl space in pure thermal modelling).
Information
Model of parallelepiped glazed zone on crawl space, in pure thermal modelling
Hypothesis and equations
Parallelepiped single-zone building on crawl space with glazing model, to be connected to a boundary conditions model (left thermal port) and a left realOutput for solar fluxes. By default walls are oriented in the four cardinal points; the orientation modification is represented by the parameter beta. The right thermal port is connected to the inner volume (heat capacity). Floor and ceiling are subject to outside temperatures which are weighted by a coefficient b.
This model inherits from ZoneCrawlSpace and superimposes on it glazings.
Bibliography
none
Instructions for use
This single zone building model is to be connected to a weather boundary conditions model on the left (outside temperature, sunlight-related data). The right thermal port is connected to the inner volume (heat capacity) and can, if desired, be connected to any model using a thermal port (internal heat gains...).
The walls parameterization is done via the parameter caracParoi, however it still can be done layer by layer without creating any type of wall.
- Click on the small arrow of caracParoi + Edit
- Fill in the fields on the number of layers, their thickness, the mesh. The parameter positionIsolant is optional
- For the mat parameter, click on the small arrow + Edit array, match the number of boxes in a column to the number of materials layer in the window that is displayed, then, in each box, right-click + Insert function call and browse the library to specify the path of the desired material (in
Utilities.Data.Solids)
Known limits / Use precautions
To consider walls radiation in long wavelength (LWR), exchange coefficients h must be global exchange coefficients.
Glazings transmit solar fluxes to the floor.
Validations
Validated model - Ludovic Darnaud 07/2010
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Licensed by EDF under a 3-clause BSD-license
Copyright © EDF 2009 - 2023
BuildSysPro version 3.6.0
Author : Ludovic DARNAUD, EDF (2010)
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Parameters
| Type | Name | Default | Description |
|---|---|---|---|
| Modelica.Units.SI.Volume | Vair (from ZoneCrawlSpace) | Indoor air volume | |
| Real | beta (from ZoneCrawlSpace) | 0 | Correction of vertical walls azimuth (azimuth=azimuth{0,90,180,-90}+beta) |
| Boolean | ChoixPint (from ZoneCrawlSpace) | false | Consideration of radiative contributions in proportion to surfaces |
| Boolean | ChoixGLOext (from ZoneCrawlSpace) | false | Consideration of LW radiation (infrared) between vertical walls and the sky |
| Real | bCombles (from ZoneCrawlSpace) | 0.5 | Weighting coefficient of ceiling temperatures on lost roofs |
| Real | bVS (from ZoneCrawlSpace) | 0.5 | Weighting coefficient of floor temperatures on crawl space |
| Boolean | ensoleillement | true | Consideration of solar fluxes |
| Initialisation parameters | |||
| Modelica.Units.SI.Temperature | Tair (from ZoneCrawlSpace) | 293.15 | Indoor air initial temperature |
| Modelica.Units.SI.Temperature | Tp (from ZoneCrawlSpace) | 293.15 | Walls initial temperature |
| BuildSysPro.Utilities.Types.InitCond | InitType (from ZoneCrawlSpace) | BuildSysPro.Utilities.Types.InitCond.SteadyState | |
| Vertical walls | |||
| BuildSysPro.Utilities.Records.GenericWall | CaracParoiVert (from ZoneCrawlSpace) | Vertical walls characteristics | |
| Modelica.Units.SI.Area | S1nv (from ZoneCrawlSpace) | 1 | South wall surface (unglazed) |
| Modelica.Units.SI.Area | S2nv (from ZoneCrawlSpace) | 1 | West wall surface (unglazed) |
| Modelica.Units.SI.Area | S3nv (from ZoneCrawlSpace) | 1 | North wall surface (unglazed) |
| Modelica.Units.SI.Area | S4nv (from ZoneCrawlSpace) | 1 | East wall surface (unglazed) |
| Modelica.Units.SI.CoefficientOfHeatTransfer | hextv (from ZoneCrawlSpace) | ||
| Modelica.Units.SI.CoefficientOfHeatTransfer | hintv (from ZoneCrawlSpace) | ||
| Real | albedo (from ZoneCrawlSpace) | 0.2 | Environment albedo |
| Real | alpha (from ZoneCrawlSpace) | 0.6 | Absorption coefficient of the outer surface in the visible |
| Real | eps (from ZoneCrawlSpace) | 0.6 | Emissivity in LWR |
| Horizontal walls › Ceiling | |||
| BuildSysPro.Utilities.Records.GenericWall | CaracPlaf (from ZoneCrawlSpace) | Ceiling characteristics | |
| Modelica.Units.SI.Area | Splaf (from ZoneCrawlSpace) | 1 | Ceiling surface |
| Modelica.Units.SI.CoefficientOfHeatTransfer | hplaf (from ZoneCrawlSpace) | ||
| Modelica.Units.SI.CoefficientOfHeatTransfer | hintplaf (from ZoneCrawlSpace) | ||
| Horizontal walls › Floor | |||
| Integer | PlancherActif (from ZoneCrawlSpace) | 1 | |
| Modelica.Units.SI.Area | Splanch (from ZoneCrawlSpace) | 1 | Floor surface |
| Modelica.Units.SI.CoefficientOfHeatTransfer | hplanch (from ZoneCrawlSpace) | ||
| Modelica.Units.SI.CoefficientOfHeatTransfer | hintplanch (from ZoneCrawlSpace) | ||
| Integer | nP (from ZoneCrawlSpace) | 1 | Number of the layer whose upper border is the site of power injection - must be strictly lower than n |
| Integer | nD (from ZoneCrawlSpace) | 8 | Number of discretization slices of the water floor |
| Modelica.Units.SI.Distance | Ltube (from ZoneCrawlSpace) | 128 | Floor heating coil length |
| Modelica.Units.SI.Distance | DiametreInt (from ZoneCrawlSpace) | 0.013 | Inner diameter of tube |
| Modelica.Units.SI.Distance | eT (from ZoneCrawlSpace) | 0.0015 | Tube thickness |
| Horizontal walls › Plancher | |||
| BuildSysPro.Utilities.Records.GenericWall | CaracPlanch (from ZoneCrawlSpace) | Floor characteristics | |
| Parois Horizontales › Floor | |||
| Modelica.Units.SI.ThermalConductivity | lambdaT (from ZoneCrawlSpace) | 0.35 | Tube thermal conductivity |
| Windows | |||
| Modelica.Units.SI.Area | S1v | 1 | South wall glazed surface |
| Modelica.Units.SI.Area | S2v | 1 | West wall glazed surface |
| Modelica.Units.SI.Area | S3v | 1 | North wall glazed surface |
| Modelica.Units.SI.Area | S4v | 1 | East wall glazed surface |
| Modelica.Units.SI.CoefficientOfHeatTransfer | U | Glazings thermal conductivity | |
| Real | tau | Glazings transmission coefficient | |
| Real | AbsFen | 0.1 | Direct and diffuse absorption coefficient of windows |
Connectors
| Type | Name | Default | Description |
|---|---|---|---|
| Modelica.Blocks.Interfaces.RealInput[10] | G (from ZoneCrawlSpace) | Sun data : {DIFH, DIRN, DIRH, GLOH, t0, CosDir[1:3], Solar azimuth angle, Solar elevation angle} | |
| BuildSysPro.BaseClasses.HeatTransfer.Interfaces.HeatPort_a | T_ext (from ZoneCrawlSpace) | ||
| BuildSysPro.BaseClasses.HeatTransfer.Interfaces.HeatPort_a | T_int (from ZoneCrawlSpace) | ||
| Modelica.Blocks.Interfaces.RealInput[2] | WaterIn (from ZoneCrawlSpace) | Vector containing 1-the fluid temperature (K), 2-the flow(kg/s) | |
| Modelica.Blocks.Interfaces.RealOutput[2] | WaterOut (from ZoneCrawlSpace) | Vector containing 1-the fluid temperature (K), 2-the flow(kg/s) | |
| Modelica.Blocks.Interfaces.RealInput | PelecPRE (from ZoneCrawlSpace) | Electric power injected into the floor | |
| Modelica.Blocks.Interfaces.RealInput | Pint (from ZoneCrawlSpace) | Internal radiative heat gains | |
| BaseClasses.HeatTransfer.Interfaces.HeatPort_a | T_ciel (from ZoneCrawlSpace) |
Components
| Type | Name | Default | Description |
|---|---|---|---|
| BuildingEnvelope.HeatTransfer.B_Coefficient | coefficient_bVS (from ZoneCrawlSpace) | ||
| BoundaryConditions.Radiation.PintRadDistrib | pintDistribRad (from ZoneCrawlSpace) | Distribution proportionally to surfaces of any radiative flux |
Revisions
Gilles Plessis 02/2011: Changement du modèle de coefficient B pour vérifier la conservation d'énergie + Ajout d'une liste déroulante pour le choix des matériaux via l'annotation annotation(choicesAllMatching=true)
Aurélie Kaemmerlen 03/2011 : Remplacement des modèles de ParoiEclairee et FenetreSimple par ParoiRad et FenetreRad avec externalisation du calcul des flux solaires incidents + Modèle mis en extends du cas sans vitres (ZoneVideSanitaire)
Gilles Plessis 06/2012 :
- Intégration du changement de paramétrage des parois. Voir les révisions apportées au modèle de parois
- Protection de composants pour éviter le grand nombre de variables dans la fenêtre des résultats.