Building management system with clean air and infection reduction features

A building management system (BMS) for executing an indoor air quality (IAQ) analysis of a building, the BMS comprising:

• a controller comprising memory and one or more processors configured to:
• obtain IAQ data from one or more sensors within the building, wherein the IAQ data is associated with an environment species;
• obtain building automation system (BAS) data;
• identify a ventilation rate and a recirculate rate as a plurality of unknown parameters from the IAQ data and the BAS data the environment species;
• estimate the ventilation rate and the recirculate rate based on inputting the IAQ data and the BAS data into an optimization model, and wherein the optimization model analyzes predicted concentrations of the environment species subject to the environment species evolving according to a single-species concentration model;
• provide the estimated ventilation rate and the estimated recirculate rate to one or more predictive models configured to predict values of a control objective for one or more building zones as a function of control decision variables for HVAC equipment;
• and
• operate the HVAC equipment to affect an environmental condition of the building in accordance with a selected set of optimization results from the one or more predictive models.

A computer-implemented method for executing an indoor air quality (IAQ) analysis of a building, the computer-implemented method comprising:

• obtaining, by a processing circuit, IAQ data from one or more sensors within the building, wherein the IAQ data is associated with at least one of a plurality of environment species;
• obtaining, by the processing circuit, building automation system (BAS) data;
• estimating, by the processing circuit, at least one unmeasured time-series airflow parameter for a plurality of single-species concentration models based on enriching the two or more of the plurality of environment species according to an occupancy parameter over a time-series based on inputting the IAQ data and the BAS data into an optimization model and scaling the optimization model according to an occupancy parameter over a given time period;
• providing, by the processing circuit, the estimated at least one unmeasured time-series airflow parameter to one or more predictive models configured to predict values of a control objective for one or more building zones as a function of control decision variables for HVAC equipment;
• and
• causing, by the processing circuit, an operation of the HVAC equipment to affect an environmental condition of the building in accordance with an output from the one or more predictive models.