.Buildings.Applications.DataCenters.ChillerCooled.Equipment.Validation.CoolingCoilHumidifyingHeating_ClosedLoop

Information

This model demonstrates the use of Buildings.Applications.DataCenters.ChillerCooled.Equipment.CoolingCoilHumidifyingHeating. The valve on the water-side and the electric heater on the air-side is regulated to track a setpoint temperature for the air outlet based on the step changes in the inlet temperature on the waterside. The humidifier on the air-side is manipulated to control the humidity of the air outlet.

To avoid simultenous cooling (by opening the valve on the water side) and heating (by turning on the heater), a built-in controller is used to turn the reheater on and off. The detailed control logic can be found in Buildings.Applications.DataCenters.ChillerCooled.Controls.Reheat. A setting for this example is shown as following:

• The switch point for the valve position, yValSwi is set as yValSwi=yValMin + 0.1, and a deadband 0.05 is used.
• The switch point for the difference between the inlet temperature of the reheater and the required outlet temperature setpoint, dTSwi is set to 0, and deaband temperature difference 0.5 Kelvin is used.

Revisions

• April 11, 2017, by Yangyang Fu:
  First implementation.