modelRadOnTiltedSurf_Liu
Extends from BaseClasses.PartialRadOnTiltedSurf.
Information
Overview
The RadOnTiltedSurf model calculates the total radiance on a tilted surface.
Concept
The RadOnTiltedSurf model uses output data of the Sun model and weather data (beam and diffuse radiance on a horizontal surface for TRY format, or beam normal and global horizontal for TMY format) to compute total radiance on a tilted surface. It needs information on the tilt angle and the azimut angle of the surface, the latitude of the location and the ground reflection coefficient.
The input InDayAngleSun is not explicitly used in the model, but it is part of the partial model and it doesn't interfere with the calculations.
Example Results
The model is checked within the weather example as part of the weather model.
Parameters
| Type | Name | Default | Description |
|---|---|---|---|
| Properties of Weather Data | |||
| Boolean | WeatherFormat (from PartialRadOnTiltedSurf) | false | Format weather file: If checked TMY, else TRY |
| Location Properties | |||
| Modelica.Units.NonSI.Angle_deg | Latitude (from PartialRadOnTiltedSurf) | 49.5 | latitude of location |
| Ground reflection | |||
| Real | GroundReflection (from PartialRadOnTiltedSurf) | 0.2 | ground reflection coefficient |
| Surface Properties | |||
| Modelica.Units.NonSI.Angle_deg | Azimut (from PartialRadOnTiltedSurf) | 13.400 | azimut of tilted surface, e.g. 0=south, 90=west, 180=north, -90=east |
| Modelica.Units.NonSI.Angle_deg | Tilt (from PartialRadOnTiltedSurf) | 90 | tilt of surface, e.g. 0=horizontal surface, 90=vertical surface |
Connectors
| Type | Name | Default | Description |
|---|---|---|---|
| Modelica.Blocks.Interfaces.RealInput | InHourAngleSun (from PartialRadOnTiltedSurf) | ||
| Modelica.Blocks.Interfaces.RealInput | InDeclinationSun (from PartialRadOnTiltedSurf) | ||
| Modelica.Blocks.Interfaces.RealInput | solarInput1 (from PartialRadOnTiltedSurf) | beam horizontal for TRY; beam for TMY | |
| Modelica.Blocks.Interfaces.RealInput | solarInput2 (from PartialRadOnTiltedSurf) | diffuse horizontal for TRY; ground horizontal for TMY | |
| Utilities.Interfaces.SolarRad_out | OutTotalRadTilted (from PartialRadOnTiltedSurf) | ||
| Modelica.Blocks.Interfaces.RealInput | InDayAngleSun (from PartialRadOnTiltedSurf) |
Components
| Type | Name | Default | Description |
|---|---|---|---|
| Real | InBeamRadHor | beam irradiance on the horizontal surface | |
| Real | InDiffRadHor | diffuse irradiance on the horizontal surface | |
| Real | cos_theta | ||
| Real | cos_theta_help | ||
| Real | cos_theta_z | ||
| Real | cos_theta_z_help | ||
| Real | R | ||
| Real | R_help | ||
| Real | term |
Revisions
-
March 23, 2015 by Ana Constantin:
Adapted solar inputs so it cand work with both TRY and TMY weather format -
May 02, 2013 by Ole Odendahl:
Formatted documentation appropriately -
March 14, 2005 by Timo Haase:
Implemented.