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INSTALLATION
1.5.3
Exhaust system
Water is injected in the exhaust system of the generating
set. In this way the cooling water that has passed the heat
exchanger is mixed with the exhaust gases. Temperature
and
volume
of
the
gases
considerably, so that a rubber exhaust hose can be used
and the level of noise is reduced as well.
1
STANDARD EXHAUST SYSTEM INSTALLATION
The
generating
set
exhaust
completely independent and separate from the exhaust
system of any other engine on board. A water lock
prevents the generating set from being flooded by cooling
water and should be installed as close to the generating
set as possible. The lock must be large enough to hold the
entire water volume held in the hose from the top of the
goose neck to the water lock. The water lock must be
installed at the lowest point of the exhaust system (ref. to
A
4
2
5
Fig. 10. Exhaust system
1 Exhaust water lock;
2 Exhaust outlet muffler;
3 Exhaust line Ø 63 mm (2½");
4 Goose neck
5 Through-hull exhaust outlet Ø 63 mm (2½");
6 Water level.
10
are
thereby
reduced
system
must
remain
HOSE ROUTE A- B MAX. 10ft (3m)
3
1
fig. 10, ref. 1). The exhaust hose must have an inner
diameter of 63 mm (2½"). The exhaust system must be
installed so that the back pressure inside the exhaust does
not exceed 0.07 bar (1psi – 70 cm watercolumn) and total
length from the genearot to the top of the goose neck or or
water/separator does not exceed 3m (10 ft.). (Refer to
paragraph 5.4.3 of the users manual).
The exhaust hose descends from the capsule to the water
lock. Then the hose rises via the "goose neck" to the
through-hull exhaust outlet, situated minimum 50 mm
above the water line (see fig. 10, ref 5.) The "goose neck"
must be vertical and situated preferable along the ship's
keel center line. If the generating set is mounted less than
600 mm (24") above the waterline, a "goose neck" must be
installed to prevent the engine from overflowing. It is
recommended to install an extra muffler close to the
through-hull fitting.
B
3
6
Oktober 2010 / M-SQ25 / EN
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