# Rate of fuel consumption by a pump

## Input(s)

N: Pump Rotary Speed (rpm)

\(\mathrm{T}\): Output Torque (ft lbs)

n: Pump Efficiency \((\%)\)

H: Fuel Heating Value \((B T U / l b)\)

## Output(s)

Qf: Fuel Consumption Rate \((\mathrm{lbm} / \mathrm{h})\)

## Formula(s)

\[
\mathrm{Q}_{\mathrm{f}}=48.46 * \frac{\mathrm{N} * \mathrm{~T}}{\mathrm{n} * \mathrm{H}}
\]

## Reference(s)

Samuel. E Robello. 501 Solved Problems and Calculations for Drilling Operations. Sigma Quadrant. 2015. Houston, Texas, Page: 6.