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Kilocalorie per hour (kcal/hr) is a unit of power that measures energy transfer rate. It represents the amount of energy in kilocalories transferred or converted per hour. This unit is commonly used in heating, ventilation, and air conditioning (HVAC) systems to measure thermal power output.
The calculator uses the conversion formula:
Where:
Explanation: This conversion is based on the relationship between different power units, where 1 kilowatt equals approximately 859.845 kilocalories per hour.
Details: Converting between power units is essential in various engineering applications, particularly in thermal systems, energy efficiency calculations, and when comparing different energy sources or systems that use different measurement units.
Tips: Enter the power value in kilowatts (kW). The value must be a non-negative number. The calculator will automatically compute and display the equivalent value in kilocalories per hour (kcal/hr).
Q1: Why is the conversion factor 859.845?
A: This factor comes from the relationship between kilowatts and kilocalories per hour, where 1 kW = 859.845 kcal/hr based on the definition of these units.
Q2: When would I need to convert kW to kcal/hr?
A: This conversion is commonly needed in HVAC design, thermal engineering, and when working with heating systems where power outputs are specified in different units.
Q3: Is kcal/hr the same as BTU/hr?
A: No, they are different units. 1 kcal/hr is approximately equal to 3.96567 BTU/hr. Both measure power but use different energy definitions.
Q4: Can this calculator handle decimal inputs?
A: Yes, the calculator accepts decimal values for more precise calculations, which is important for engineering applications.
Q5: What's the difference between kcal/hr and kW?
A: Both measure power, but kW is part of the International System of Units (SI), while kcal/hr is a non-SI unit commonly used in thermal applications. The conversion allows comparison between systems using different measurement standards.