constant volume system

constant volume system

An air-conditioning system which supplies air at a fixed volume per unit time; the temperature of the supplied air is used to regulate the temperature of the air-conditioned space if there are variations in the load on the system.
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The unit airflow is typically modulated in some way to match the server fan though a constant volume system can still be employed.
has been awarded a contract to install new variable frequency drives (VFD's) to replace the constant volume system at Chicago's main post office.
Unlike the constant volume system, there is only one requirement that must be satisfied to make this a successful pass.
For the constant volume systems, the recommendation for optimum air flow and minimum energy use was to use the minimum amount of required CRAC units (that minimum amount should include the redundant units).
One option for the air-distribution system is to convert dual-duct, multi-zone, or constant volume systems to a variable volume system.
Liu and Claridge (1999) presented a method to convert dual-duct constant volume systems without having to retrofit the terminal boxes to a VAV system.
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