Feedback control method to maintain indoor air quality
Demand controlled ventilation (DCV) is a feedback control method to maintain indoor air quality that automatically adjusts the ventilation rate provided to a space in response to changes in conditions such as occupant number or indoor pollutant concentration. The most common indoor pollutants monitored in DCV systems are carbon dioxide and humidity.[1] This control strategy is mainly intended to reduce the energy used by heating, ventilation, and air conditioning (HVAC) systems compared to those of buildings that use open-loop controls with constant ventilation rates.
^Zhang, Sheng; Ai, Zhengtao; Lin, Zhang (23 April 2021). "Novel demand-controlled optimization of constant-air-volume mechanical ventilation for indoor air quality, durability and energy saving". Applied Energy. 293: 116954. doi:10.1016/j.apenergy.2021.116954. ISSN 0306-2619.
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