Cooling capacity is one of the most important characteristics of climate technology. The area of the room that will be serviced depends on it. Therefore, the calculation of the capacity of the air conditioner by area is required.
Calculation of the power of the air conditioner
That is, if the area of the room is 18 sq. meters, an air conditioner with a cooling capacity of 2 kilowatts is suitable. For a room of 50 sq. meters, a power of 5 kilowatts is required and so on.
This calculation of the power of the air conditioner does not take into account the radiation of heat from windows, household or office equipment, people. Therefore, it is very approximate. It is useful only for customers who are afraid of being deceived in a store or purchasing an air conditioner for a small standard living space.
If the equipment is needed for an office, a shop, a residential cottage, a room with panoramic windows, ventilation, the question of how to determine the power of the air conditioner should be decided by a specialist.
The formula for calculating the power of the air conditioner
There is a known formula for calculating the power of an air conditioner. It takes into account the radiation of heat, the height of the room and even the heat received from the sun. Using this formula, you can calculate the capacity of an air conditioner for an apartment located in a stone house with a standard layout.
The error in this case will not be too great. Approximately the same accuracy is provided by the forms of calculating the power of air conditioners online.
Q = S*H*k,
hereS - the area of the room in square meters,H - ceiling height in meters,k - coefficient determined depending on the intensity of solar irradiation: 40 - for the south side, 30 - for the north side (or heavily shaded), 35 - an intermediate option.
When determining the capacity of an air conditioner, how to take into account the heat radiation from people and equipment, which is also quite large:
- while sleeping, reading or watching TV, a person emits 100 watts of heat every hour;
- during intense physical activity - 250 watts;
- to calculate the heat emitted by electrical appliances, divide the maximum power by 3.
But the formula is good only for calculating the capacity of an air conditioner by the area of a capital structure. When a room has a roof made of glass or a stall made of light portable structures needs to be conditioned, you should contact a specialist; the formula used in calculating the power of air conditioners online will not help either.
