.Buildings.Examples.VAVCO2.VAVSystemCTControl

Information

This examples demonstrates the implementation of CO2 control for a variable air volume flow system. Each room has a CO2 source. Depending on the CO2 concentrations, the air dampers in the room open or close. The supply and return fans are controlled to provide a constant static pressure.

Note that this example does not control the room temperature and the heat flow through the building envelope. It only implements the CO2 source and the damper and fan control to maintain a CO2 concentration in the room below 700 PPM.

Because the building envelope is idealized as having no leakage, the supply and return fan are controlled so that they both receive the same control signal. If the return fan were controlled so that it tracks the volume flow rate of the supply fan, then there would be multiple solutions for the control signal as the split between pressure raise of the supply fan and pressure raise of the return fan is arbitrary.

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