8
Installation Recommendations
Mechanical design
Fuel system
A. Ensure that fill point is accessible and clean all the
time. Provide proper lid and lock. Ensure that all piping
is leak free.
B.Service storage tank should be located such that
piping will have minimum and controlled restriction.
This is more important and difficult in case of roof-top
installation.
C.Fuel transfer pump, preferably automatic is
recommended than manual.
D.Avoid fuel spillage. Do not overfill the fuel tank.
Fuel expands when warm and may overflow.
E. Ensure proper fuel disposal arrangement.
F. Ensure that fuel dilution and theft does not occur.
Care should be taken in the purchase of fuel and filling
of tanks to prevent ingress of dirt and moisture into the
diesel fuel system.
G.Install fuel treatment plant depending upon available
quality of the fuel (mixed with water or sediments like
rust, scale, weld slag, dirt and other debris.
H.Ensure that cavitation does not take place in the
system.
Cooling system
A.Ensure initial fill + top up water used in cooling system
has recommended properties as mentioned in
operation and maintenance manual.
B.Water softening / demineralizing plants should be used,
if water quality is not acceptable.
Poor routing of fuel hoses
I. Common exhaust system for multiple sets is not
recommended due to soot, condensation, excessive
suction pressure, entry of exhaust gases in non
working engine, increased back pressure and lack of
fail safe system availability. However exhaust of two
banks of V-engines can be connected, after silencer.
Ensure that area of common pipe is greater than sum
of the areas of individual pipes. Exhaust of engines can
be directly connected to chimney at different levels as
shown.
J. Installation of explosion relief valve is recommended,
particularly for bigger sets.
K.The exhaust system outlet direction should also be
carefully considered. Hot exhaust gasses must never
be directed towards undesirable locations like
caféteria, play ground, school or public place etc. or
towards combustible surface. Exhaust from a diesel
engine is hot and will contain soot and other
contaminants that can adhere to surrounding surfaces.
It is highly recommended that the exhaust system be
carried up as high as practical on the downwind side of
buildings in order to discharge straight up to maximize
dispersal.
Common exhaust piping (not
recommended)
Exhaust Rain Cap
Mechanical design
Optimum Location of Silencer
In-line Engine ‘V’ Engine
Best 2L / 5 4L - 5
5
Second best 2L / 5 2L - 4.5
5
Worst Location of Silencer
In-line Engine ‘V’ Engine
Worst L or 3L 3L -10
5 5 5
Where ‘L’ = Length
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