1. What is the Water Heating Equation?

The water heating equation calculates the power required to heat a specific volume of water by a certain temperature difference in a given time. It's based on the specific heat capacity of water (4.18 kJ/kg·K).

2. How Does the Calculator Work?

The calculator uses the water heating equation:

Where:

• \( Volume \) — Volume of water in liters (L)
• \( \Delta T \) — Temperature difference in degrees Celsius (°C)
• \( Time \) — Heating time in seconds (s)
• 4.18 — Specific heat capacity of water (kJ/kg·K)
• 3600 — Conversion factor from seconds to hours

Explanation: The equation calculates the energy required to heat water and converts it to power (kW) by dividing by time.

3. Importance of Power Calculation

Details: Accurate power calculation is crucial for sizing water heaters, boilers, and other heating systems to ensure they can meet demand.

4. Using the Calculator

Tips: Enter volume in liters, temperature difference in °C, and time in seconds. All values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: Why 4.18 in the equation?
A: This is the specific heat capacity of water - the energy required to raise 1 kg of water by 1°C (4.18 kJ/kg·K).

Q2: How does volume affect power requirements?
A: Power needed increases linearly with volume - double the water volume requires double the power for the same ΔT and time.

Q3: What if my time is in minutes or hours?
A: Convert to seconds first (1 min = 60s, 1 hour = 3600s) before entering the value.

Q4: Does this work for other liquids?
A: No, this is specific to water. Other liquids have different specific heat capacities.

Q5: How accurate is this calculation?
A: It provides theoretical minimum power requirements. Real-world systems may need more power due to heat losses.