Diesel generators will always come with some form of muffler to reduce noise created when they are in operation. Increased silencer will reduce noise levels.

What to consider when choosing muffler exhaust of diesel generator include:

• Proximity to other components or personnel
• Appearance and aesthetics
• space availability
• The allowable backpressure
• Required noise
• Cost

Generally speaking, the silencing level will improve in proportion to the size of the muffler. The increase in noise for the muffler that, as a rule, an increase in exhaust restrictions and, consequently, the pressure will increase.

Round mufflers are more opportunities include sound than a flat surface. Double wrap the pipe and double wall surface further helps the sound insulation.

Two basic types of mufflers are available for diesel-powered generators: industrial mufflers, which provide about 15-20 dB of suppression, and residential / critical silencers, which provide from 20 to 30 dB suppression.

Exhaust gas at the inlet and outlet, usually located at the ends of the silencer, although they may be on the sides, which simplifies the installation of the exhaust pipe.

Rainwater and other contaminants must be prevented from entering the opening of the exhaust pipe. Counterbalance valve caps rain type have been successful in this application. Conical caps and covers other general ventilation is rarely used because of the high pressure caused by them.

Over time, exhaust soot (or particles) can accumulate on nearby structures, which is why it is important to carefully plan the location of the point of graduation.
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