Welsh Water is firmly committed to energy conservation and promoting energy efficiency. So when ATS was tasked with designing an energy efficient ventilation solution at the Cardiff Bay plant, the ATS PUREFLO system was the obvious choice.
The huge amount of heat emitted from the variable speed drives in the motor control centre was a particular concern for the client. High temperatures in these rooms could potentially cause the motor control centre panel to trip-out causing loss of pumps in the works.
To manage these high temperatures and to prevent process gases affecting the operation of the control systems ATS installed the PUREFLO air displacement system.
PUREFLO terminals supply cool air at floor level. The cool air forces existing levels of warm air to rise. These local heat sources create upward convection currents, accelerating the movement of warm air to the roof, where it is exhausted.
During the winter cycle, surplus heat recovered from the motor control centre provides frost protection to the centrifuge building. Emitted heat is captured via canopies located above banks of control panels and supplied to the adjacent centrifuge area via a ductwork system. In the summer this surplus heat is discharged to the atmosphere.
PUREFLO ventilates the low level areas where the panels and the operators are located, thereby using less air and less energy than traditional systems.
The diversity of ventilation solutions installed throughout the works reflects the complexity of atmospheric contaminants prevalent in the various stages of wastewater treatment, and Air Technology solution's based approach.
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