You are looking for a power unit to run an irrigation pump in your operation. The pump requires 92 horsepower to turn so you know a unit that can produce about 100 horsepower is needed. The pump will operate 2000 hours per year.

1. The engine has a brake specific fuel consumption (BSFC) value of 0.34 lbs/hp-hr. The manufacturer indicates that based on standard altitude and temperature deratings in addition to the options you specified on the engine, the deratings should be around 22.5%. Calculate the derated BSFC for the engine due to the deratings.

2. Convert the value above to a gallons per hour figure if diesel fuel is 7.076 lbs per gallon.

3. Calculate the number of gallons you will use in a typical year for the engine.