It’s said that inverter air conditioners save electricity. Is that true

It’s said that inverter air conditioners save electricity. Is that true

Nowadays, when buying an air conditioner, you will be asked whether you want to buy a fixed frequency air conditioner or an inverter air conditioner. If you are asked whether it is better to have a fixed frequency or a fixed frequency, of course most people will tell you that the inverter is better, but what is the specific advantage? , How good? Should I choose inverter as long as I buy an air conditioner? I believe that many consumers are also confused. Here, okmarts.com will elaborate on the issue of fixed frequency and variable frequency. There are two main types of air conditioners on the market: variable frequency and fixed frequency.

　　 The biggest difference between fixed frequency and variable frequency: the variable frequency compressor can be continuously variable

　　 As the new favorite of the industry, inverter air conditioners are more than a thousand yuan more expensive than ordinary fixed frequency air conditioners. Since Daikin inverter air conditioners proposed to use only one kilowatt-hour of electricity per night, many consumers' first impression of inverter air conditioners is that they save electricity. But does inverter air conditioner really save electricity? In addition to power saving, does it have other advantages?

　　 Today, Refrigeration Encyclopedia will talk to you about inverter air conditioners

　　What is inverter air conditioner

The refrigeration principle of the inverter air conditioner is exactly the same as that of the fixed frequency air conditioner. Its main unit is automatically steplessly variable. It can automatically provide the required cold (heat) according to the room situation; when the indoor temperature reaches the desired value, the air-conditioning main unit will It can accurately maintain this temperature at a constant speed to achieve "non-stop operation", thereby ensuring the stability of the ambient temperature. To put it simply and bluntly, it is possible to maintain a constant operation at this temperature according to changes in the indoor temperature to achieve "non-stop operation".

The speed of the traditional fixed-frequency air conditioner compressor is basically unchanged, and the indoor temperature is adjusted by constantly "on" and "stop" the compressor. This constant "on-stop-on" can easily cause the indoor temperature to fluctuate. And consume more power.

The inverter air conditioner using inverter control technology can automatically select the heating, cooling and dehumidification operation modes according to the ambient temperature, so that the room can quickly reach the required temperature in a short time and with small temperature fluctuations under low speed and low energy consumption. , To achieve fast, energy-saving and comfortable temperature control effect.

　　 So the question is coming?

　　 Does inverter air conditioner really save electricity?

　　 Inverter air conditioner is relatively energy-saving, but it should be viewed objectively in terms of power saving. One disadvantage of the inverter air conditioner is that it must be turned on continuously to achieve the effect of saving power. This means that if the inverter air conditioner is turned on for a whole day, it will indeed save more power than the fixed frequency air conditioner. However, most households in the country will not continue to turn on, so the advantage of power saving cannot be reflected.

　　 Let's press a calculator first.

Hypothesis: We purchase an inverter air conditioner. It is calculated based on the operating time of 4 months per year, 30 days per month, and an average of 8 hours per day. The cooling operation time is 960 hours, and the average air conditioner power is 2000W. During the cooling period, use The fixed-speed 5-level air conditioner (EER=2.6) has a total power consumption of 1920 degrees. If the current standard 5-level inverter air conditioner (EER=3.3) is used, the total power consumption is 1510 degrees, and the power saving is about 410 degrees, saving electricity costs Less than three hundred yuan.

　　 It really saves money in this way, and the air conditioner price difference can still come out after five years.

　　 But do you see the key point? Use 8 hours a day.

　　Inverter air conditioner within 1 hour of starting, due to the large temperature difference between the room temperature and the set temperature, the air conditioner will operate at a higher power and high frequency, and quickly adjust and cool. Therefore, the power consumption is relatively large during the first period of startup, which consumes more power than the fixed frequency air conditioner.

　　 If the room enters a constant temperature state after a long period of time, the inverter air conditioner will save electricity than the fixed frequency air conditioner of the same horsepower. But if in a different environment, such as when the windows are open, the room has a poor thermal insulation effect and the load is always large, the inverter air conditioner may consume more power than the fixed frequency air conditioner of the same horsepower.

　　In other words, if you use it for no more than five hours a day, the power-saving advantages of inverter air conditioners will not be displayed at all.

　　 In this case, do we still need to buy an inverter air conditioner?

　　The advantages of inverter air conditioners

Compared with fixed-frequency air conditioners, inverter air conditioners are more energy-saving, have lower noise, high accuracy of temperature control, fast temperature adjustment, lower voltage requirements, lower environmental temperature requirements, and maintain indoor temperature constant temperature, etc. , These advantages are higher than its voice on the advantage of power saving.

　　The advantage of high temperature control accuracy can prevent us from experiencing the sudden cold and hot in the room, which greatly improves the comfort of the air-conditioned room.

　　 Generally speaking, in view of the Chinese people’s habit of using air conditioners, it is a bit difficult for the inverter air conditioners to save you the price difference, so you can ignore the fact that the inverter air conditioners save money. But this does not prevent us from enjoying the other advantages of inverter air conditioners.