Closed Circuit Coolers - Tasman Cooling Towers

14
Sound Attenuation Packages
The centrifugal fan design of the LSWA and LRW models operate
at lower sound levels which make these units preferable for
installations where noise is a concern. For extremely noise
sensitive applications, the LSWA and LRW centrifugal fan
models may be supplied with various stages of intake and/or
discharge attenuation packages which greatly reduce sound
levels.
Oversized fan motors are required for many of these options in
order to overcome the additional static pressure. Consult the
factory for certified sound data for each sound attenuation
option.
Straight Sided
Discharge Attenuation
(LSWA and LRW)
Optional Equipment
Fan Side Inlet Attenuation (LRW Only)
Reduces sound radiated from the fan side air intakes and has
an open side to allow for air entry. This attenuation package
ships loose to be mounted in the field on each side of the
closed circuit cooler over the fan intakes.
Fan End Inlet Attenuation
Reduces sound radiated through the end air intakes. It consists
of baffled panels to change the path of the air entry and to
capture the radiated noise thus reducing the overall sound
levels generated. In addition, the external belt adjustment
mechanism is extended through the inlet attenuator to allow
easy belt adjustment without having to enter the unit.
Discharge Attenuation
Example of LRW model
The discharge attenuation hood features a straight sided or
tapered design with insulated baffles to reduce the overall
sound levels of the discharge air. The discharge attenuation
incorporates a large access panel to allow entry to the drift
eliminators and water distribution system. If a higher discharge
velocity is required with minimal sound attenuation, a tapered
discharge hood is available.
Fan Side Inlet
Attenuation
(LRW only)
Fan End Inlet
Attenuation
(LSWA and LRW)