2014•Applied Mechanics and MaterialsRequires access

Design of Control Scheme for Variable Air Volume Air-Conditioning System

Fan Zhang

Abstract

The air quantity of variable air volume system for the rooms and the total air quantity of the system changes with the change of room load. Combined with the system composition in the laboratory, the paper determines the control scheme of the variable air volume system, that is, indoor temperature-control, indoor positive pressure control, air distribution static pressure control, air-supply temperature control and new air volume control. The dotted lines with arrows mean the output signals from the control unit to actuator, and the solid lines with arrows represent the input signals from the actuator to the control unit.

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Key concepts: Variable air volume, Volume (thermodynamics), Room air distribution, Actuator, Air conditioning, Constant air volume, Control system, Control theory (sociology)