1. What is Diesel Generator kWh per Litre?

Definition: This calculator estimates the electrical energy output (in kWh) that a diesel generator can produce from a given volume of fuel.

Purpose: It helps estimate generator performance, fuel requirements, and operating costs for backup power systems.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( E_{kWh} \) — Energy output (kilowatt-hours)
• \( V_{fuel} \) — Volume of diesel fuel (litres)
• \( Q_f \) — Specific fuel consumption (litres per kWh)
• \( \eta \) — Generator efficiency factor (typically 0.3-0.4)

Explanation: The fuel volume is divided by the product of specific consumption and efficiency to determine usable electrical energy.

3. Importance of Energy Output Calculation

Details: Accurate energy estimation ensures proper generator sizing, fuel storage planning, and cost projections for power generation.

4. Using the Calculator

Tips: Enter the fuel volume in litres, specific fuel consumption (default 0.3 L/kWh), and efficiency factor (default 0.4). All values must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: What's typical specific fuel consumption?
A: Most diesel generators consume 0.2-0.4 litres per kWh, depending on size and load.

Q2: How does efficiency affect the calculation?
A: Lower efficiency means more fuel is needed for the same energy output (typical range 30-40%).

Q3: Does this account for generator load?
A: No, the specific consumption value should reflect your expected operating load (usually higher at partial loads).

Q4: How can I find my generator's specific consumption?
A: Check manufacturer specifications or divide fuel consumption rate (L/h) by power output (kW).

Q5: Does temperature affect these calculations?
A: Yes, cold weather can increase fuel consumption by 5-15% due to lower combustion efficiency.