1. What is Engine Fuel Consumption?

Engine fuel consumption measured in g/kWh (grams per kilowatt-hour) represents the mass of fuel consumed per unit of energy produced. It's a key metric for evaluating engine efficiency and performance across various applications.

2. How Does the Calculator Work?

The calculator uses the fuel consumption formula:

Where:

• \( \text{Fuel Rate} \) — Mass flow rate of fuel (grams per hour)
• \( \text{Power Output} \) — Engine power output (kilowatts)

Explanation: This calculation provides the specific fuel consumption, which is a standardized measure of how efficiently an engine converts fuel into useful work.

3. Importance of Fuel Consumption Calculation

Details: Monitoring fuel consumption is crucial for optimizing engine performance, reducing operating costs, minimizing environmental impact, and comparing efficiency between different engines or operating conditions.

4. Using the Calculator

Tips: Enter fuel rate in grams per hour and power output in kilowatts. Both values must be positive numbers. For accurate results, ensure measurements are taken under stable operating conditions.

5. Frequently Asked Questions (FAQ)

Q1: What is a good fuel consumption value for diesel engines?
A: Modern diesel engines typically achieve 190-220 g/kWh, with advanced models reaching as low as 170 g/kWh under optimal conditions.

Q2: How does fuel consumption vary with engine load?
A: Specific fuel consumption is usually lowest at around 75-85% of maximum load and increases at both very low and very high loads.

Q3: What factors affect engine fuel consumption?
A: Key factors include engine design, maintenance status, operating temperature, fuel quality, air density, and accessory loads.

Q4: How can I improve my engine's fuel efficiency?
A: Regular maintenance, proper tuning, operating at optimal load, using quality fuel, and reducing parasitic losses can all improve fuel efficiency.

Q5: What's the difference between BSFC and SFC?
A: BSFC (Brake Specific Fuel Consumption) and SFC (Specific Fuel Consumption) are essentially the same measurement - fuel consumed per unit of power output.