Demand Controlled Ventilation
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 Measures of pollutant concentration are used to determine Risk assessment#Risk assessment in public health, risk assessment in public health. Secondary sector of the economy, Industry is continually Chemical synthesis, synthesizing new chemicals, t .... The control strategy is mainly intended to reduce the energy use by heating, cooling, and ventilation systems compared to buildings that use open-loop controls with constant ventilation rates. Common reference standards for ventilation: * ISO ICS 91.140.30: Ventilation and air-conditioning systems * ASHRAE 62.1 & 62.2: The standards for Ventilation and Indoor Air Quality Examples of estimating occupancy * Timed schedules * Motion sensors (various technologies including: Au ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Control Theory Control theory is a field of mathematics that deals with the control of dynamical systems in engineered processes and machines. The objective is to develop a model or algorithm governing the application of system inputs to drive the system to a desired state, while minimizing a |