How about the number of air conditioners
Air conditioners have almost become an electrical appliance that people cannot live without. The inherent life style has also caused the air-conditioning market to be hot year after year. However, as a complex electrical appliance, air-conditioning has many indexes and performances that make the public confused. The most obvious one is the number of air-conditioning units. So what about the number of air conditioners? What is the conversion standard between it and the corresponding use area?
What is air conditioner horsepower?
The so-called air conditioner horsepower mainly refers to the power consumption of the air conditioner, and the horsepower does not refer to the cooling capacity. The daily air conditioner horsepower is based on the power consumption of the air conditioner and then estimates its cooling capacity. Therefore, there is an absolute relationship between the number of air conditioners and the cooling capacity of the air conditioner. The larger the number of air conditioners, the greater the cooling capacity. Generally speaking, the cooling capacity of one air conditioner is about 2000 kcal, and the conversion international unit is multiplied by 1.162. That is 2324W. By analogy, we can judge the number of air conditioners and the cooling capacity. Generally, the cooling capacity of 2200-2600W is called one hp, 3200-3600W is called 1.5 hp, and 4500-5500W is called 2 hp.
How to calculate the number of air conditioners?
According to a large number of tests and the human body’s perception of the external temperature, it is found that the cooling capacity of one air conditioner is about 2500W, which is suitable for a room of about 12 square meters. The cooling capacity of two air conditioners is about 5000W, suitable for rooms of about 25 square meters, 2.5 hp air conditioners have a cooling capacity of about 6250W – suitable for rooms of about 40 square meters, 3 hp air conditioners have a cooling capacity of about 7500W – suitable for rooms of about 50 square meters, 4 hp The cooling capacity of the air conditioner is about 10,000W – suitable for a room of about 70 square meters.
Generally speaking, in China, the cooling capacity of an air conditioner is calculated based on the cooling capacity of 150-220W per square meter, so to the above Mr. Wang, it is enough to buy a 1-horse air conditioner. Of course, this will also be affected by the environment in which the gas is located. For example, if the sealing and thermal insulation conditions are poor, the cooling capacity should be appropriately larger. If the sealing and insulation conditions are good, the cooling capacity may be smaller.
People have a strong sensitivity to the surrounding temperature. A suitable room temperature can make people feel comfortable and healthy. For a generally healthy person, the physiological temperature is about 28 degrees. , Therefore, the temperature of the air-conditioned room should be selected as close to this temperature as possible, and because the outdoor temperature is too low in winter, in order to maintain a certain balance and applicability, the indoor temperature in winter should be lower, about 18 degrees.
An air conditioner with a cooling capacity of about 2500W is suitable for a room of about 12 square meters;
A 1.25 horse air conditioner with a cooling capacity of 3200W, also called a small 1.5 horse air conditioner, is suitable for a room of about 16 square meters Room use;
1.5 hp air conditioner with a cooling capacity of 3500W, suitable for a room of about 18 square meters;
two air conditioners with a cooling capacity of about 5000W, suitable for a room of about 25 square meters;
The three-horse air conditioner with a cooling capacity of about 7500W is suitable for a room of about 38 square meters.
It also depends on the sealing and thermal insulation conditions of the room, such as floor, orientation, height, usage, etc. The size of the air conditioner should be adjusted according to the specific situation.
According to home appliance experts, the size of the room is different, and the number of suitable air conditioners is also different. In addition, if the room is not well sealed, the window area is too large, and the air conditioner filter is not clean, etc., the heating effect will also be reduced. affected. According to the market survey of air conditioning and refrigeration, when the air conditioner is heating, the outlet air temperature is about 50 degrees. If the old air conditioner does not have auxiliary electric heating, the temperature is also about 40 degrees. In addition, if the air conditioner is not installed properly, or the air conditioner lacks fluorine, the heating and cooling effect of the air conditioner will be greatly reduced.
How to choose the number of air conditioners
The factors that determine the number of air conditioners
Air conditioner cooling capacity It is an important parameter reflecting the refrigeration capacity of air conditioners and the basic basis for air conditioner selection. General household air conditioners can calculate the cooling capacity of the air conditioner according to the size of the room, the quality of the sealing and insulation conditions, the floor, the orientation, the height and other factors.
The best match between the number of air conditioners and the room area
Household air conditioners are generally based on 120-150W cooling capacity/square meter Selection, the room is exposed to the west, and the heat insulation and sealing are poor, and it can be appropriately increased, but generally it does not need to exceed 200W/square meter. The number of horses of the air conditioner represents the cooling capacity of the air conditioner, that is, the size of the cooling capacity. The cooling capacity of one air conditioner is about 2500W, which is suitable for a room of about 12 square meters, and the cooling capacity of two air conditioners is about 5000W, which is suitable for a room of about 25 square meters.
Influence of other factors on the choice of air conditioner horsepower
Simply use air conditioners for cooling in summer, and the cooling capacity can be appropriately smaller. If air conditioners are needed for heating in winter The heating and cooling capacity should be appropriately larger. If the sealing and thermal insulation conditions of the room are poor, the cooling capacity should be appropriately larger, and if the sealing and thermal insulation conditions are good, the cooling capacity may be smaller.
In summary, the cooling capacity of an air conditioner is an important parameter reflecting the cooling capacity of an air conditioner, and it is the basic basis for the selection of an air conditioner. Ruyi air conditioning products.
Heats and power consumption of air conditioners
The “horse” of air conditioners is a non-SI unit of power. The power of the compressor is not the full power of the air conditioner. The full power should include the fan motor and electronic control part except the compressor. Due to the differences in the control system and electronic control design of different brands, as well as the different cooling performance, the output cooling capacity is also different, so the cooling capacity of the air conditioner is calculated based on the output power.
The power consumption mainly depends on the power of the compressor. Since the calculation method of the single-point energy efficiency ratio of the fixed speed air conditioner is generally used, so: compressor power = cooling capacity / energy efficiency ratio. According to the current manufacturing level, the general air-conditioning energy efficiency ratio is between 2.6 and 3.4. The energy efficiency ratio of the air conditioner can also be calculated by dividing the output power of the air conditioner (on the nameplate) by the input power.
Generally speaking, the cooling capacity of an air conditioner is roughly 2000 kcal, which should be multiplied by 1.162 (1K=1.162W) when converted into international units. Therefore, the cooling capacity of 1 horse should be 2000 kcal × 1.162 = 2324 watts. Of course, different air conditioners have different cooling performances, and the cooling capacity of 1 horse is about 2300W ~ 2500W, where the watts ( W) means the cooling capacity, so the cooling capacity of 1.5 hp should be 2000 kcal × 1.5 × 1.162 = 3486 (W).
How is the power consumption of the air conditioner calculated?
First, determine the number of horses and cooling capacity of the air conditioner:
1 horsepower of the air conditioner means that the cooling capacity is roughly 2000 kcal , converted into international units should be multiplied by 1.162, so the cooling capacity of 1 horse should be 2324 (W), where W (watt) means the cooling capacity, then 1.5 horses should be 2000 kcal × 1.5 × 1.162 = 3486 watts , and so on, according to this situation, the number of horses and the cooling capacity of the air conditioner can be roughly determined. Under normal circumstances, 2200W-2600W can be called 1 horse, and 3200W-3600W can be called 1.5 horses.
Second, the power consumption mainly depends on the power of the compressor:
Compressor power = cooling capacity/energy consumption ratio, general air conditioners The energy consumption ratio is greater than 3, so the general data of 1 hp electric power is 735W, and the power consumption of 1.5 hp is 735* 1.5 is about 1100 watts, which is about 1.1 kWh in 1 hour. In addition to the compressor, there are fans or other motors needed. The power consumption is about 1.2 degrees for a total of 1 hour. The easiest way to see how many kilowatts the input power is on the manual is the power consumption for 1 hour.
Third, the power consumption of the air conditioner is directly related to the cooling capacity:
But the output power representing the cooling capacity is not the power consumption Direct comparison parameters, for example, it is not that an ordinary air conditioner with a cooling capacity of 2500W needs 2.5 degrees of electricity to work continuously for one hour. In fact, an ordinary 2500W air conditioner consumes about 0.9 degrees of electricity for one hour of continuous operation. It can even be reduced to 0.4 degrees, because the output power of the air conditioner is generally 2.6-2.9 times the input power, and the input power is the direct factor that determines the power consumption.
Is the larger the number of air conditioners the better?
The number of air conditioners is not as large as possible. Generally, the number of air conditioners can be determined according to the size of the room and the sealing and thermal insulation conditions. , floor, orientation, height and other factors, the cooling capacity of the air conditioner can be calculated according to the cooling capacity of 150-220W per square meter. Simply use air conditioners for summer cooling, and the cooling capacity can be appropriately smaller. If air conditioners are needed for heating and heating in winter, the cooling capacity should be appropriately larger. If the sealing and thermal insulation conditions of the room are poor, the cooling capacity should be appropriately larger, and if the sealing and thermal insulation conditions are good, the cooling capacity may be smaller.
