Engine output depending on fuel quality
Different fuel qualities like temperature, density
and viscosity affect the actual output of the
engine. Our outputs are specified by fuel with a
density of 0.84 kg/dm3 and specific heat rate of
42,7 Mj/kg at a fuel temperature of +15°C.
The correction in % caused by the change of fuel
qualities is seen in the attached figures.
FIG. A. Engine output dependence on fuel
temperature. +35°C is the reference temp
(correction 0%). The fuel temperature is not only a
function of ambient conditions but also varies
according to the fuel system of the application
(tank size and location, return flow etc.).
FIG. B. Engine output dependence on fuel density.
Normal value is 0,84 kg/dm3 at +15°C.
FIG. C. Engine output dependence on fuel
viscosity. Normal value is 3 cSt at +20°C.
Note figure B and C only if the fuel quality is
changed.
In fig. A there are all the quality dependencies
caused by the change of the temperature. The fuel
density and viscosity can be seen in the produce
declaration given by the manufacturer.
The output correction is made as follows:
Correction percentages from figures A, B and C
are summed up. The given rated power is then
corrected with the resulting percentage.
Fig. 13
Alternative fuels
Using diesel fuel according to European norm EN 590:2009 or ASTM D 975 1-D or 2-D, all AGCO POWER
engines have full warranty for the specified warranty period and the engines will work well with good
reliability and long life time.
2. Specifications
4th Generation Engines 2-31
8370 79492
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