TYPES OF BOILER BURNERS
Pressure Jet Burner: This uses the pressure of the fuel oil to create atomization and a rotating spray. The fuel at the correct viscosity, flow through the centre passage of the burner, so the...
Framo Basics
In this article we will discuss the following basics components of FRAMO system on board ...
Virtual Tappet
What is Virtual Tappet?
Unlike Aux Engines which have a manual tappet to adjust, there must be a tappet clearance for the Main Engine as well. But with the absence of a rocker arm...
THE DEVELOPMENT OF THE MODERN LOW-SPEED TWO-STROKE MARINE DIESEL ENGINE
INTRODUCTION
The prime mover of merchant ships
has been for more than the century primarily the marine Diesel engine, which is
nowadays predominantly a low-speed, two-stroke, crosshead-type, reversible,
uniflow-scavenged, turbocharged, electronically controlled engine. The low
speed marine engine is,...
EMERGENCY GENERATOR
SOLAS Requirements
Emergency generator and ESB should be located above the uppermost continuous deck, not forward of collision of bulkhead.MSB or any machinery space should not interface with the supply control and distribution of emergency...
VARIABLE DELIVERY PUMP
The variable delivery pump can run continuously in one direction, but
have the cabpability of infinitely changeable discharge i.e., from zero to
maximum in either direction.This is attained by changing the stroke of the pump piston....
BRUSHLESS ALTERNATOR
In
this machine slip-rings
and brushes are eliminated and excitation is provided not by conventional direct
current exciter but by a
small alternator.
The a.c. exciter has the unusual arrangement of 3phase output windings on the rotor and magnetic...
TECHNICAL QUESTIONS & ANSWERS PART-14
Q. Referring to the latest IMO “ Code on Noise Level onboard Ships”, define and explain the following terms:-
A). A- weighted equivalent sound level
B). C-weighted equivalent sound level
C). Sound pressure levels
D). Weighted sound reduction...
FUEL VALVE WORKING
The fuel is supplied by the fuel pumps to the fuel injectors or fuel valves. For the fuel to burn completely at the correct time it should be broken up into tiny droplets in...