Conversion Formula:
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A ton of refrigeration is a unit of power used in North America to describe the heat-extraction capacity of refrigeration and air conditioning equipment. One ton of refrigeration is equal to the cooling power of one ton of ice melting over a 24-hour period.
The calculator uses the conversion formula:
Where:
Explanation: This formula converts electrical power input (kW) to cooling capacity output (tons of refrigeration) based on the standard conversion factor.
Details: Accurate tonnage calculation is crucial for proper HVAC system sizing, energy efficiency assessment, and equipment selection in refrigeration and air conditioning applications.
Tips: Enter kilowatt value in the input field. The value must be greater than zero. The calculator will automatically compute the equivalent tons of refrigeration.
Q1: Why is the conversion factor 3.517?
A: This factor comes from the definition that 1 ton of refrigeration equals 12,000 BTU/hour, and 1 kW equals approximately 3,412 BTU/hour, resulting in 12,000/3,412 ≈ 3.517.
Q2: Is this conversion applicable to all refrigeration systems?
A: This is a theoretical conversion based on perfect efficiency. Actual system performance may vary based on equipment efficiency, operating conditions, and other factors.
Q3: What are typical tonnage values for residential AC units?
A: Residential air conditioners typically range from 1.5 to 5 tons, with larger homes requiring higher tonnage systems.
Q4: Can I use this for heat pump calculations?
A: Yes, the same conversion applies to heat pump cooling capacity calculations.
Q5: How does efficiency affect this conversion?
A: Higher efficiency systems (higher SEER or EER ratings) will produce more cooling tons per kW of electrical input.