Which Scavenging Method is Using For Slow Speed Marine Engines ? Why

 All Modern slow speed marine diesel engines now use the uniflow scavenging system with a cylinder head exhaust valve

Advantages of Uniflow scavenging

> Simple linear construction

> long skirt (for piston) not required

> Stroke length can be increased

> High scavenging efficiency

> Low grade of thermal efficiency

> Low grade of fuel can be burnt

> uniform wear of piston rings and liner

> less thermal stress

> less intermixing of scavenging air with the exhaust gas

> Exhaust valve can be made to open late

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