Fuel Flow Calculator
Calculate fuel flow rates, consumption, and requirements for engines and fuel systems. Convert between different fuel flow units and estimate fuel needs for your application.
Step 1: Fuel System Details
Understanding Fuel Flow
Fuel flow rate is the amount of fuel consumed by an engine per unit of time. It’s calculated based on engine power and brake specific fuel consumption (BSFC), which measures fuel efficiency.
Step 2: Additional Options
About BSFC
Brake Specific Fuel Consumption (BSFC) measures an engine’s fuel efficiency. Lower BSFC values indicate better efficiency. Typical values range from 0.35 lb/HP·hr for efficient diesel engines to 0.50+ lb/HP·hr for less efficient gasoline engines.
Fuel Flow Results
Required Fuel Flow Rate
Engine Type Fuel Flow Comparison
| Engine Type | Typical BSFC | Fuel Flow (lb/hr) | Fuel Flow (GPH) |
|---|
Fuel Flow Unit Conversion
Fuel Flow Calculation Formula
Fuel Flow (lb/hr) = Engine Power (HP) × BSFC (lb/HP·hr)
To calculate fuel flow rate in pounds per hour, multiply engine power by the brake specific fuel consumption. For volume flow rates, divide the mass flow rate by the fuel density.
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