Abstract:
Diesel engine as prime mover and the mechanical pump as a driven units, are
the backbone structure for the most of petroleum pipelines, for instance in Sudan
we have three pipelines based on that method [Petro Energy pump stations are
using these equipment recently in Sudan]. By switching pump units on or off and
controlling it is speed as required, operators ensures that the process-(crude oil)-
is transferred safely and at the desired parameters-(flow, velocity, pressure)-
through the pipe line.
Definitely, pumps and diesel engines are complex, delicate, and expensive
pieces of equipment that can be badly damaged if not handled and controlled
properly.
In this research we studies the principles of diesel engine and how it work
beside the main phrase and part used on diesel engine control and operation
beside the control algorithm.
The most common way of diesel engine speed control is to use a special
dedicated
electronic
device
to
control
engines
speed,
normally
it
is
microcomputer based, and for example the Wood Ward company series of speed
controllers or the Heinsmann company ones and in this research we studies in
detail the Wood Ward controller as it is widely used.
In the last part of this research we studies the principles of PLC and how it
works and we make a program for diesel engine speed control instead of the
above mentioned dedicated electronic device method.
