Tons to kWh Calculator

Energy Conversion Formula:

\[ E_{kWh} = (Tons \times 3.517) \times t \]

Energy (kWh):

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1. What is a Tons to kWh Calculator?

Definition: This calculator converts tons of refrigeration to kilowatt-hours (kWh) of energy consumption over time.

Purpose: It helps HVAC professionals and energy managers estimate electrical energy usage from refrigeration systems.

2. How Does the Calculator Work?

The calculator uses the formula:

\[ E_{kWh} = (Tons \times 3.517) \times t \]

Where:

\( E_{kWh} \) — Energy in kilowatt-hours
\( Tons \) — Tons of refrigeration
\( t \) — Time duration in hours
3.517 — Conversion factor (kW per ton)

Explanation: The tons of refrigeration are converted to kW (1 ton = 3.517 kW), then multiplied by operating hours to get kWh.

3. Importance of Energy Conversion

Details: Accurate conversion helps in energy cost estimation, system sizing, and efficiency analysis for refrigeration systems.

4. Using the Calculator

Tips: Enter the refrigeration capacity in tons and the operating time in hours. All values must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: What is a ton of refrigeration?
A: A unit of power equal to the heat absorption of one ton of ice melting in 24 hours (12,000 BTU/hr or 3.517 kW).

Q2: Why 3.517 kW per ton?
A: This is the standard conversion factor based on the definition of refrigeration tonnage.

Q3: Can this be used for air conditioning systems?
A: Yes, it works for any system rated in tons of refrigeration, including AC units.

Q4: How accurate is this calculation?
A: It provides theoretical energy use. Actual consumption depends on system efficiency and operating conditions.

Q5: What if my system has a COP or EER rating?
A: Divide the result by the COP (or multiply by EER/3.413) to account for system efficiency.