Page 17 - Introduction to Marine Engineering
P. 17
Ships and machinery 5
Waste combustion plant
. Engine room
Gear units
Stern thruster plant
Medium-speed Diesel generator units Ballast pumps
diesel engine Engine room layout
Section
Figure 1.3 Medium-speed diesel machinery arrangement
A separate generator room houses three diesel generator units, a
waste combustion plant and other auxiliaries. The machinery control
room is at the forward end of this room.
Steam turbine
Twin cross-compounded steam turbines are used in the machinery
layout of the container ship, shown in Figure 1.4. Only part plans and
sections are given since there is a considerable degree of symmetry in the
layout. Each turbine set drives, through a double reduction gearbox with
separate thrust block, its own fixed-pitch propeller. The condensers are
located beneath each low-pressure turbine and are arranged for scoop
circulation at full power operation and axial pump circulation when
manoeuvring.
