Brake Specific Fuel Consumption Calculator

What is Brake Specific Fuel Consumption (BSFC)?

Brake Specific Fuel Consumption (BSFC) is a measure of fuel efficiency of an engine. It represents the amount of fuel consumed per unit of power output. The unit is typically grams of fuel per kilowatt-hour (g/kW) or sometimes liters per kilowatt-hour (L/kWh).

How to Use This Calculator

1. Enter the Brake Power of the engine in kilowatts (kW). This is the power output of the engine measured at the brake (output shaft).
2. Enter the Fuel Consumption of the engine in liters per hour (L/h). This is the amount of fuel consumed by the engine per hour.
3. Click the Calculate button to compute the BSFC.
4. The result will be displayed in g/kW. A lower value indicates better fuel efficiency.

Significance of BSFC

BSFC is a critical parameter in engine design and optimization. It helps engineers determine how efficiently an engine converts fuel into power. Lower BSFC values indicate more efficient engines, which lead to better fuel economy and reduced emissions.

Example Calculation

If an engine has a brake power of 100 kW and consumes 25 liters of fuel per hour, the BSFC would be calculated as follows:

BSFC = (25 L/h × 1000 g/L) / 100 kW = 250 g/kW

Applications

BSFC calculations are used in various applications including:

• Engine performance analysis
• Fuel efficiency improvement studies
• Engine comparison between different models
• Optimization of engine operating conditions