To determine the air conditioner size and quantity required for a facility, it's necessary to consider several factors, including the room volume, insulation, heat sources, and climate conditions. However, as a rough estimate, you can use a rule of thumb to calculate the required cooling capacity.
The standard cooling capacity needed for a room is typically around 20-25 BTUs (British Thermal Units) per square foot or 60-75 watts per square meter. To calculate the total cooling capacity required for a facility, you can multiply the room volume by the appropriate BTU or wattage value.
Let's use the metric system for this calculation:
Calculate the cooling capacity in watts: Cooling Capacity (Watts) = Room Volume (m³) x 60-75 watts/m²
Determine the appropriate range for the watts per square meter value based on the level of insulation and other factors. For a facility, let's use the middle value of 67.5 watts/m².
Cooling Capacity (Watts) = Room Volume (m³) x 67.5 watts/m²
Convert the cooling capacity to the nearest appropriate air conditioner size. Air conditioner sizes are usually available in standard BTU or kilowatt (kW) ratings.
Let's assume an air conditioner size of 1 ton = 12,000 BTU/hr or 3.5 kW.
Air Conditioner Size (kW) = Cooling Capacity (Watts) / 1000
Calculate the required quantity of air conditioners by dividing the total cooling capacity by the size of a single unit.
Quantity of Air Conditioners = Cooling Capacity (Watts) / Air Conditioner Size (Watts)
Let's perform the calculations using your facility volume of 253.30m³:
Cooling Capacity (Watts) = 253.30 m³ x 67.5 watts/m² = 17,103.75 watts
Air Conditioner Size (kW) = 17,103.75 watts / 1000 = 17.10 kW
Assuming a standard air conditioner size of 3.5 kW:
Quantity of Air Conditioners = 17.10 kW / 3.5 kW ≈ 4.89
Therefore, as a rough estimate, you would likely need around 5 air conditioners with a size of 3.5 kW (or the nearest appropriate size) to adequately cool a facility with a volume of 253.30m³. Keep in mind that this is a general calculation, and for precise sizing, it's recommended to consult with HVAC professionals who can consider specific details about the facility and its requirements.