A large CI engine operating at 310 RPM has open combustion chambers and direct injection, with 26-cm bores, a 73-cm stroke, and a compression ratio of 16.5:1. Fuel injection in each cylinder starts at...

A large CI engine operating at 310 RPM has open combustion chambers and direct injection, with 26-cm bores, a 73-cm stroke, and a compression ratio of 16.5:1. Fuel injection in each cylinder starts at 21° bTDC and lasts for 0.019 second. ID is 0.0065 second.

Calculate:

(a) ID in degrees of engine rotation.

(b) Crank angle position when combustion starts.

(c) Crank angle position when injection stops.