BuildSysPro.BoundaryConditions.Solar.Utilities.HourAngle

# .BuildSysPro.BoundaryConditions.Solar.Utilities.HourAngle

Hour Angle (HA)

## Information

Function returning Hour Angle at (t 0 + t) according to the True Solar Time

Hypothesis and equations

Function returning Hour Angle at (t 0 + t) according to the True Solar Time:

AH = (TSV-12)*pi/12

The year is supposed to be not bisextile.

Bibliography

H. BOUIA, "Amélioration du temps de calcul dans BuildSysPro par traitements numériques optimisés de la conduction et des calculs solaires", Note H-E14-2013-00715-FR, 03/2013.

Instructions for use

none

Known limits / Use precautions

none

Validations

Validated function - Hassan BOUIA 03/2013

--------------------------------------------------------------
Licensed by EDF under a 3-clause BSD-license
Copyright © EDF 2009 - 2023
BuildSysPro version 3.6.0
Author : Hassan BOUIA, EDF (2013)
--------------------------------------------------------------

#### Interface

>     function HourAngle
>       input Modelica.Units.SI.Time t0 = 0 "Time in seconds at t=0";
>       input Modelica.Units.SI.Time t "Universal time in seconds";
>       input Modelica.Units.NonSI.Angle_deg longitude "longitude in degrees";
>       output Real AH "Hour Angle in radians: HA = 15*TSV*pi/180";
>     end HourAngle;

## Revisions

Hassan Bouia 03/2013 : Simplification de l'écriture et adaptation au nouveau modèle MeteoFile

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