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Calculate Fuel Engine Fuel Consumption per hour

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10sam

Mechanical
Joined
Feb 4, 2007
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Location
US
I have an engine's fuel consumption in lb/hp-hr. How would I calculate the fuel gal consumption per hour knowing the hp at a given rpm?
 
You can convert lbs to gallons if you know the density of the fuel. Then for a given engine speed, you can look up the horsepower.

Multiply horsepower, brake specific fuel consumption, and the inverse of the density of the fuel (units of gallons/lb). This will give you gallons per hour.


-Reidh
 
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