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Figure 4: Steps of optimization of the air coolers for the gas compressor station (Boldrocchi S.r.l.).
to reach with regular fans. Again, this allowed the The further significant contribution to noise reduction
reduction of noise emission. came from the increase of the exchange surface of
All these expediencies did not result in any modifications the air coolers, which had been compensated by the
to the footprint and sizes of the equipment but increased reduction of the fans air flow rate and pressure. The
the cost of the project of about 15%, as shown by the equipment, initially composed of two cells equipped
figure. with three fans each, were enlarged up to the
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