
2023 Author: Philip Bishop | [email protected]. Last modified: 2023-08-03 19:28
If you want to purchase and install an air conditioner for cooling air in the room, it is not enough just to choose the model you like. Before deciding on the air conditioner, it is necessary to make calculations to determine its power. Calculation of the capacity of the air conditioner for cooling the room will help determine the basic parameters and functionality of the required air conditioner.
To calculate the cooling capacity of a room quickly and easily, you can use an online calculator.
Room area, m 2: | |
Room height, m: | |
Room illumination: | Weak Medium Strong |
Number of people: | |
Number of computers | |
Number of TVs | |
Power of other equipment, kW | |
Air exchange rate | Disregard 0.5 11.5 22.53 |
Guaranteed 20 ° C | No Yes |
Top floor | No Yes |
Large window, m 2 | Before 23456 |
Cooling capacity (kW.): |
Calculators from wpcalc.com
The calculation of the power of the air conditioner is based on the formula:
Q = Q 1 + Q 2 + Q 3
Where,
- Q 1 - heat inflow of the room;
- Q 2 - heat inflow from people inside the room;
- Q 3 - heat flow from computers, televisions and household appliances.
To calculate the coefficient Q 1 for the main parameters, the formula is used:
Q 1 = S h q / 1000
Where,
- S is the area of the room (m²);
- h - room height (m);
- q - room lighting factor equal to 30 - 40 W / m³:
Also, Q 1 is affected by a number of additional parameters such as:
- Ventilation - increases the coefficient of the basic coefficient Q 1 from 10% and more, depending on the rate of air exchange
- Maintaining a temperature of 20 ° C - increasing the required power by 20%
- Number of storeys - upper floors, increasing the base Q 1 by 15%;
- Glazing area - depending on the area of the window, the power of the air conditioner also depends.
The calculation of the coefficients Q 2 and Q 3 is quite simple:
- Q2 = number of people in the room 0.1 kW
- Q3 = Number of computers · 0.3 kW + Number of TVs · 0.2 kW + Power of other devices · 0.3
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