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Diesel Litres to kWh Calculator

Energy Conversion Formula:

\[ \text{kWh} = \frac{\text{litres} \times \text{density} \times \text{CV}}{3.6} \]

litres (L)
kg/L
MJ/kg
kWh

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1. What is a Diesel Litres to kWh Calculator?

Definition: This calculator converts the volume of diesel fuel in litres to electrical energy output in kilowatt-hours (kWh).

Purpose: It helps estimate the potential energy content in diesel fuel, useful for energy planning, generator sizing, and fuel efficiency calculations.

2. How Does the Calculator Work?

The calculator uses the formula:

\[ \text{kWh} = \frac{\text{litres} \times \text{density} \times \text{CV}}{3.6} \]

Where:

Explanation: The formula calculates the mass of diesel from its volume, determines its energy content, and converts it to electrical energy units.

3. Importance of Diesel Energy Calculation

Details: Accurate energy conversion helps in proper generator sizing, fuel budgeting, and understanding energy efficiency in diesel-powered systems.

4. Using the Calculator

Tips: Enter the diesel volume in litres, density (default 0.832 kg/L), and calorific value (default 45.5 MJ/kg). All values must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: What is the typical density of diesel?
A: Standard diesel density is about 0.832 kg/L at 15°C, but this varies slightly with temperature and diesel type.

Q2: What calorific value should I use?
A: Typical diesel CV is 45.5 MJ/kg, but check your fuel specifications as this can vary by 1-2 MJ/kg.

Q3: Does this account for conversion efficiency?
A: No, this calculates theoretical energy content. Actual output depends on generator or engine efficiency (typically 30-45%).

Q4: How do I estimate generator runtime?
A: Divide the kWh result by your generator's kW rating to estimate hours of operation at full load.

Q5: Can I use this for biodiesel blends?
A: Yes, but adjust density and CV values as biodiesel typically has slightly lower energy content (about 37-40 MJ/kg).

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