AHU Simulator

OPERATOR PANEL

Setpoints and disturbances

Supply temperature target 21.0°C Supply air setpoint. Changes are applied to the controller immediately. Outdoor temperature -6.0°C Main weather disturbance for recovery and coil load. Supply pressure base setpoint 250 Pa Direct supply duct pressure target for the fan PI controller. Extract pressure base setpoint 120 Pa Direct extract duct pressure target for the fan PI controller. Occupancy 50% Adds strong people heat and CO₂ load to the room. High occupancy now has a clearly visible effect. Filter dirtiness level 20% Filter pressure drop updates immediately and stays fixed for the selected dirtiness level. Heavy dirtiness still creates a strong restriction in the fan and duct pressure model. Simulation speed 1x 1x keeps the normal pace. Use up to 50x for long room and CO₂ changes.

Live process

Operating stateHEATING

Supply setpoint21.0°C

After heat recovery14.0°C

After heating coil20.5°C

After cooling coil20.5°C

Supply temperature20.8°C

Room temperature22.4°C

Room CO₂635 ppm

Airflow supply / extract70% / 62%

No active alarms

Automatic control: supply temperature, duct pressures, heat recovery, fans, heating, and cooling now regulate continuously from live sensor values.

Simulation: outdoor temperature, occupancy, room heat balance, CO₂, filter resistance, water return temperatures, startup sequence, and equipment inertia all affect the process.

Test it: change the outdoor temperature or supply target, increase occupancy, load the filters, or cycle AHU power and watch the control loops recover.