Demand controlled ventilation systems can be used to minimise energy consumption whilst maintaining satisfactory levels of indoor air quality (IAQ). As an alternative to C02 sensors IAQ sensors (based on Taguchi mixed gas sensors) can be used to infer levels of IAQ. This Technical Note provides details of a series of laboratory and site tests to determine the performance of a range of IAQ sensors.
The indoor air quality of an actual variable air volume (VA V) heating, ventilation and air conditioning (HV AC) system in a building on the campus of the University of Missouri, Rolla has been analyzed, modified, and monitored. Components measured include temperature, relative humidity, C02, volatile organic matter (VOM), particulates, outside air flow rate, and building pressure. In addition to these parameters, the building is studied in normal operation, and for operation when the economizer damper was controlled to maintain minimum outside air.
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