AC Horsepower Formula:
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Definition: This calculator estimates the required air conditioner horsepower based on room area in square meters and the COP (Coefficient of Performance).
Purpose: It helps determine the appropriate AC unit size for a given space to ensure efficient cooling.
The calculator uses the formula:
Where:
Explanation: The formula converts room area to cooling capacity (BTU/hr) then to horsepower, adjusted by the system's efficiency.
Details: Correct AC sizing ensures energy efficiency, proper dehumidification, and prevents short cycling of the unit.
Tips: Enter the room area in square meters and COP (default 3.5). All values must be > 0.
Q1: What is COP in AC units?
A: COP (Coefficient of Performance) measures AC efficiency - higher values mean more efficient cooling.
Q2: What's a typical COP value?
A: Standard AC units have COP around 3.5, while high-efficiency models may reach 4.5-5.0.
Q3: How does room area affect AC requirements?
A: Larger rooms require more cooling capacity. Each square meter typically needs about 100-150 BTU/hr.
Q4: Should I round up the calculated horsepower?
A: Yes, it's recommended to round up to the nearest standard AC size (0.5, 1.0, 1.5 HP etc.).
Q5: What other factors affect AC sizing?
A: Consider ceiling height, insulation, windows, climate, and heat-generating appliances.