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To know whether "one night's electricity once" is a publicity gimmick, it is necessary to first understand how the air conditioner's power consumption is calculated. The power consumption mainly depends on the power of the compressor. As the commonly used method of calculating the single point energy efficiency ratio of a fixed speed air conditioner, the compressor power = cooling capacity/energy efficiency ratio. Therefore, here we must first understand the cooling capacity, horsepower and compressor power.
1, determine the number of air conditioning and cooling capacity:
The air conditioner's 1 refers to a cooling capacity of approximately 2000 kcal, and the international unit should be multiplied by 1.162. Therefore, the cooling capacity of a horse should be 2324 (W), where W (W) is the cooling capacity, and 1.5. The horse should be 2000 kcal * 1.5 x 1.162 = 3486 watts, and so on, according to this situation, it can roughly determine the number of air conditioning and cooling capacity, under normal circumstances, 2200W-2600W can be called a horse, 3200W - 3600W can be called 1.5 horses.
2. The power consumption mainly depends on the power of the compressor:
Compressor power = cooling capacity / energy ratio, the general air conditioning energy ratio is greater than 3, so a horse's electrical power general data 735W, 1.5 horsepower power consumption is 735 * 1.5 is about 1100 watts, which is 1 hour 1.1 kWh about. The easiest way to look at the input power in the instructions is how much kilowatts is the power consumption for one hour.
3. The power consumption of the air conditioner has a direct relationship with the cooling capacity:
However, the output power representing the cooling capacity is not a direct reference parameter for power consumption. For example, it is not the normal 1 air conditioner with a cooling capacity of 2500 W that requires 2.5 degrees of continuous power for one hour of continuous operation. In practice, a 2 500 W ordinary 1 air conditioner is used for continuous operation. Energy consumed in one hour is about 0.9 degrees, and energy-saving air conditioners can even be reduced to 0.4 degrees. This is because the output power of air conditioners is generally 2.6-2.9 times the input power, and input power is the direct factor that determines power consumption.
Take a 1.5P air conditioner as an example. The power of 1.5P air conditioners is mostly between 1180W and 1300W. However, there are many energy-saving inverter air conditioners. The power consumption of 1.5P air conditioners, which are very energy-efficient, can be reduced to 800W. , but the price will be correspondingly higher.
According to the calculation method of the compressor power, 1.5 horsepower consumption is 735*1.5 is about 1100 watts, which is about 1.1 hours electricity in one hour, in addition to the compressor, there are fans or Other motors need to consume electricity, a total of 1 hour About 1.2 degrees. If you use 8 hours a day and 30 days a month, then the monthly power consumption is about 288 degrees, which is about 0.7 yuan per kilowatt hour. A 1.5-pig air conditioner needs about 200 pieces of electricity each month.
For the inverter air conditioner, its power consumption is actually very difficult to calculate, because the frequency conversion is not like the fixed frequency is a fixed value, so the impact factors such as set temperature, indoor and outdoor temperature difference, room size and so on. However, despite the fact that inverter air conditioners consume a lot of power, many of the conditions under which the US air-conditioner “one-night-a-day power†clearly advertises the gimmick are more.
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