1. What is Gas Usage Calculator?

Definition: This calculator converts gas volume (in cubic meters) to energy usage (in kilowatt-hours) using the gas's calorific value.

Purpose: It helps homeowners, businesses, and energy professionals understand their gas consumption in terms of energy units.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( E \) — Energy usage (kWh)
• \( Volume \) — Gas volume consumed (m³)
• \( Calorific\_value \) — Energy content of gas (MJ/m³)
• \( 3.6 \) — Conversion factor from MJ to kWh

Explanation: The formula converts the chemical energy in the gas to electrical energy equivalent.

3. Importance of Gas Usage Calculation

Details: Converting gas volume to kWh allows for accurate energy monitoring, cost calculations, and comparison with other energy sources.

4. Using the Calculator

Tips: Enter the gas volume in cubic meters and the calorific value (default 38 MJ/m³ for natural gas). All values must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: What is calorific value?
A: It's the amount of energy released when a specific volume of gas is completely burned (MJ/m³).

Q2: Where can I find my gas's calorific value?
A: Your gas provider can supply this information, or check your gas bill (typically ranges 37-42 MJ/m³).

Q3: Why divide by 3.6?
A: 3.6 MJ equals 1 kWh, so this converts megajoules to kilowatt-hours.

Q4: Can I use this for different gases?
A: Yes, but you'll need the specific calorific value for that gas type (e.g., propane has ~93 MJ/m³).

Q5: How accurate is this calculation?
A: Very accurate when using correct calorific values, but doesn't account for appliance efficiency.