Vessels should conform to the latest International regulations, i.e.
the consolidated Act No. 594 of 26th June 1996 and Act
No. 694 of 17th August 1995 for noise attenuation on board ships.
This legislation requires that noise levels in the sleeping quarters
must not exceed 60 dB(A) and 65 dB(A) in the crew accommodation.
Unacceptable noise levels can also be a problem when entering and
leaving harbours, and when running auxiliary generators whilst docked.
Upgrading vessels is a difficult and costly exercise, as often little or
no extra space is available for bigger silencers.
However, it is now possible to improve the working environment and
meet the requirements for noise on board ships with Silentor’s
patented silencers.
Silentor’s unique diffuser designs achieve high levels of attenuation,
particularly low frequency, without the penalties of high back pressure
associated with conventional silencers.
The pressure recovery diffusers allow the silencers to be smaller
than conventional designs of the same performance levels, therefore
allowing the Silentor units to fit into the available space.
With the possibility of upgrading the attenuation in the space available,
down time and the loss of revenue is kept to a minimum, as
vessels need not be taken out of commission to fit the silencers.
Due to Silentor’s unique patented design, efficient attenuation is
achieved with a much lower back pressure than traditional silencers
which means less wear on the engine, and improved fuel economy.
