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INSTALLATION
2
SUPER SILENT" EXHAUST SYSTEM
See figure 13. In order to reduce the noise level of the
generating set to a minimum, an option to reduce the
exhaust noise further (especially exhaust water splashing)
is
an
exhaust/water
separator.
The
exhaust/water
separator allows the cooling water to be ejected through a
line separate from the exhaust fumes and also functions
OK!
as a goose neck to prevent water from flooding the engine.
If the exhaust/water separator is mounted more than 60
cm above the water level an additional goose neck is not
required.
If the through-hull exhaust outlet has to be mounted far
from the generating set (total length of the exhaust piping
from generator to top of goose neck (water separator) is
more than 3 m.), an exhaust/water separator must
definitely be installed (see figure 14). The sea water from
the separator must then run down along the shortest
possible path to the through-hull outlet.
Only after the exhaust/water separator the exhaust hose
WRONG
may have a length of over 7.5 m if the exhaust hose
diameter is also increased from 40 mm to 51 mm in order
to reduce the back pressure (ref. to fig. 14).
However watertraps should be avoided as the fumes still
contains water and this should not accumulate in bents
Figure 15: Water trap in exhaust system
(refer to fig 15 and 16). An additional outlet exhaust
muffler close to the hull outlet will help further to reduce
noise emission (see figure 12, ref.2).
GOED!
FOUT!
Figure 16: Water will collect in the hanging bend of the exhaust gas hose and will cause back pressure
13
EN / M-SQ6 / August 2010
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