Split Unit Cooling Capacity Calculator

Formula

To calculate the Cooling Capacity (CC):

\[ CC = \frac{V \times D \times T}{R} \]

Where:

\(CC\) is the cooling capacity (BTU/hr)
\(V\) is the volume of the room (cubic feet)
\(D\) is the difference in temperature (°F)
\(T\) is the time (hours)
\(R\) is the rate of heat transfer (BTU/hr/°F)

What is a Split Unit?

A split unit, also known as a split system or ductless system, is a type of air conditioning system that is split into two parts: an indoor unit and an outdoor unit. The indoor unit, which contains the evaporator, is installed inside the room that needs cooling, while the outdoor unit, which contains the compressor and condenser, is installed outside the building. These two units are connected by a set of electrical wires and tubing. This type of system is often used in situations where window AC units or baseboard heating would be inefficient or impractical.

Example Calculation 1

Let's assume the following values:

Room Volume (\(V\)) = 1000 cubic feet
Temperature Difference (\(D\)) = 20 °F
Time (\(T\)) = 1 hour
Rate of Heat Transfer (\(R\)) = 1.5 BTU/hr/°F

Using the formula:

\[ CC = \frac{1000 \times 20 \times 1}{1.5} \approx 13333.33 \]

The cooling capacity is approximately 13333.33 BTU/hr.

Example Calculation 2

Let's assume the following values:

Room Volume (\(V\)) = 1500 cubic feet
Temperature Difference (\(D\)) = 15 °F
Time (\(T\)) = 2 hours
Rate of Heat Transfer (\(R\)) = 2 BTU/hr/°F

Using the formula:

\[ CC = \frac{1500 \times 15 \times 2}{2} = 22500 \]

The cooling capacity is 22500 BTU/hr.