INSTALLATION
10
M-GV/2, M-GV/3, M-GV/3+, M-GV 8, M-GV 10 and M-GV 15 — June 2017 — EN
2.9.3
Super silent exhaust system
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 (Figure 14, ref. A) separate
from the exhaust fumes and also functions 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 (i.e. the length of the exhaust piping from
the generator to the top of the goose neck (water separator)
exceeds 3 m; see Figure 12), an exhaust/water separator must
definitely be installed. 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 may have a length of over 7,5 m (Figure 15).
However, water traps should be avoided as the fumes still
contain water and this should not accumulate in bends (see
Figure 16). An additional outlet exhaust muffler close to the hull
outlet will help further to reduce noise emission (Figure 13,
ref 2).
Figure 14: Super silent exhaust system
Figure 15: Hose lengths
A
