.Buildings.Controls.OBC.RadiantSystems.Cooling.HighMassSupplyTemperature_TRoomRelHum .Buildings.Controls.OBC.RadiantSystems.Cooling.HighMassSupplyTemperature_TRoomRelHumController for a radiant cooling system.
The controller tracks the room temperature set point
TRooSet by adjusting the supply water temperature set
point TSupSet based on the output signal
y of the proportional controller. The supply water
temperature set point TSupSet is limited by the dew
point temperature that is calculated based on the inputs
TRoo and phiRoo. The pump is either off
or operates at full speed, in which case yPum = 1. The
pump control is based on a hysteresis that switches the pump on
when the output of the proportional controller y
exceeds 0.2, and the pump is commanded off when the output
falls below 0.1. See figure below for the control
charts.
For systems with high thermal mass, this controller should be left configured as a P-controller, which is the default setting. PI-controller likely saturate due to the slow system response.