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Return Fuel
Flow Sensor
Fuel Tank
Supply Fuel
Flow Sensor
Engine
Dis
p
la
y
/MFD
Fuel Filter
Figure 3 - Diesel Fuel Rate Measurement Fluid Flow Sensor Locations
1.6.4 Temperature Compensation
The task of computing fuel consumption for a diesel engine is further complicated by the
following two factors:
1) Diesel fuel expands when heated
2) Diesel fuel is heated as it passes through the engine
When using volumetric sensors such as positive displacement sensors or turbine flow sensors,
simply subtracting the return flow rate from the supply flow rate without taking these factors
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