WÄRTSILÄ WARTSILA32, Product Manual

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11.3.7.4 Conventional exhaust gas silencer (5R02)
Yard/designer should take into account that unfavourable layout of the exhaust system (length
of straight parts in the exhaust system) might cause amplification of the exhaust noise between
engine outlet and the silencer. Hence the attenuation of the silencer does not give any absolute
guarantee for the noise level after the silencer.
When included in the scope of supply, the standard silencer is of the absorption type, equipped
with a spark arrester. It is also provided with a soot collector and a condense drain, but it
comes without mounting brackets and insulation. The silencer can be mounted either
horizontally or vertically.
The noise attenuation of the standard silencer is either 25 or 35 dB(A). This attenuation is valid
up to a flow velocity of max. 40 m/s.
Fig 11-11 Exhaust gas silencer (3V49E0142c)
Table 11-1 Typical dimensions of exhaust gas silencers
Attenuation: 35 dB(A) Attenuation: 25 dB(A)
B A D NS
Weight [kg] L Weight [kg] L
1310 5260 980 4010 260 635 1300 600
1910 6050 1470 4550 270 745 1500 700
2490 6340 1930 4840 280 840 1700 800
2900 6870 2295 5360 290 860 1800 900
3730 7620 2900 5880 330 870 1900 1000
Flanges: DIN 2501
11-12 Wärtsilä 32 Product Guide - a21 - 7 September 2016
Wärtsilä 32 Product Guide 11. Exhaust Gas System