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Updated documentation for #2641 (#2642)
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mwetter authored Sep 23, 2021
1 parent 733a8f4 commit 6b6c151
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Controller for a radiant cooling system.
</p>
<p>
This controller tracks the room temperature set point <code>TRooSet</code> by
The controller tracks the room temperature set point <code>TRooSet</code> by
adjusting the supply water temperature set point <code>TSupSet</code>
based on a proportional controller.
The calculation of the supply water temperature set point <code>TSupSet</code> is
such that it is never below the dew point temperature.
based on the output signal <code>y</code> of the proportional controller.
The supply water temperature set point <code>TSupSet</code> is
limited by the dew point temperature that is calculated based on the inputs <code>TRoo</code> and <code>phiRoo</code>.
The pump is either off or operates at full speed, in which case <code>yPum = 1</code>.
The pump control is based on a hysteresis that takes as an input the control signal from
the supply temperature set point controller.
The pump control is based on a hysteresis that switches the pump on when the output of the
proportional controller <code>y</code> exceeds <i>0.2</i>, and the pump is commanded off when the output falls
below <i>0.1</i>. See figure below for the control charts.
</p>
<p align=\"center\">
<img alt=\"Image of control output\"
src=\"modelica://Buildings/Resources/Images/Controls/OBC/RadiantSystems/Cooling/HighMassSupplyTemperature_TRoomRelHum.png\"/>
</p>
<p>
For systems with high thermal mass, this controller should be left configured
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Controller for a radiant heating system.
</p>
<p>
This controller tracks the room temperature set point <code>TRooSet</code> by
adjusting the supply water temperature set point <code>TSupSet</code>
based on a proportional controller.
The controller tracks the room temperature set point <code>TRooSet</code> by
adjusting the supply water temperature set point <code>TSupSet</code> linearly between
<code>TSupSetMin</code> and <code>TSupSetMax</code>
based on the output signal <code>y</code> of the proportional controller.
The pump is either off or operates at full speed, in which case <code>yPum = 1</code>.
The pump control is based on a hysteresis that takes as an input the control signal from
the supply temperature set point controller.
The pump control is based on a hysteresis that switches the pump on when the output of the
proportional controller <code>y</code> exceeds <i>0.2</i>, and the pump is commanded off when the output falls
below <i>0.1</i>. See figure below for the control charts.
</p>
<p align=\"center\">
<img alt=\"Image of control output\"
src=\"modelica://Buildings/Resources/Images/Controls/OBC/RadiantSystems/Heating/HighMassSupplyTemperature_TRoom.png\"/>
</p>
<p>
For systems with high thermal mass, this controller should be left configured
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