For an air conditioner with a heating power of 1390W+1050W, what is the power consumption for 1 hour of heating

For an air conditioner with a heating power of 1390W+1050W, what is the power consumption for 1 hour of heating

Time flies, the air conditioner has just been out of service for two months, and it's time to start using it again. With air-conditioning, our biggest concern is power consumption. After all, everyone is not rich. What's more tragic is that using air conditioners in winter consumes much more power than in summer.

How much electricity does the air conditioner consume for 1 hour? There is no way to give an accurate answer to this question. After all, there are too many factors that affect the power consumption of the air conditioner. But we can make a rough estimate, and then find a few common factors that affect the power consumption of air conditioners.

　　 Heating power consumption estimation

　　 Take the following 1.5 HP air conditioner as an example ▼

To calculate the power consumption, we only need to know its power-the heating power of this air conditioner is 1390W+1050W.

　　 Why are there two powers? This is because the air conditioner has an "electric auxiliary heating" option when heating. Air-conditioning and refrigeration only need to pass the compressor, but the temperature difference between indoor and outdoor is large during heating, and the compressor is not powerful enough, so an auxiliary heating function is needed.

　　The so-called electric auxiliary heating means that a heating element is installed at the air outlet of the internal air conditioner. The structure of this thing is very simple, just like our electric heater, it generates heat when it is powered on-it also consumes electricity when it generates heat.

For an air conditioner with a heating power of 1390W+1050W, what is the power consumption for 1 hour of heating?

　　 Therefore, 1390W+1050W means that the power of the air-conditioning compressor is 1390W, and the power of the electric auxiliary heating is 1050W. If the electric auxiliary heating function is turned on when the air conditioner is heating (some air conditioners can be turned on, some air conditioners are turned on by default), then its power is 1390+1050=2440W.

　　 Such an air conditioner, continuously heating for 1 hour, consumes electricity W=Pt=2440/1000 (the unit of power P is KW)*1=2.44kwh, which is 2.44 kWh.

However, the air conditioner is not better than other electrical appliances. Anyone who has used the air conditioner knows that after turning on the air conditioner, it does not always work, but "stop and go". When the indoor temperature reaches the set temperature, the external unit of the air conditioner will stop. In general, when we estimate, we think that if the air conditioner is turned on for 1 hour, the air conditioner will only work for 20 minutes.

　　 So, the final heating power consumption of this air conditioner is 2.44*1/3≈0.8kwh.

　　 Factors affecting power consumption

　　 At this point, we can draw a conclusion, such a 1.5-hp air conditioner, with the heating function turned on for 1 hour, may consume up to 2.44 kWh, but in an ideal environment it will only consume 0.8 kWh. So what affects the power consumption of the air conditioner-in other words, what affects the running time of the outside air conditioner after the air conditioner is turned on? There are many factors, but the most common are the following three:

　　 1. Area

　　 The heating speed (heating amount) of the air conditioner is constant. The larger the room area, the greater the demand for heat. Correspondingly, the longer it takes for air conditioning to heat up. On the other hand, if the air conditioner heats quickly and the room has less demand for heat, the working time of the air conditioner will inevitably be short.

That person said, can I just buy a large air conditioner in a small room? It is okay to increase it appropriately. For example, for a room suitable for 1 HP, we can buy a 1.5 HP air conditioner. But it cannot be too large. The larger the air conditioner, the more current it consumes when starting. All the electricity saved from time will be consumed to start the compressor.

　　 Therefore, choosing an air conditioner that matches the size of the room is the most correct approach.

　　 2. Keep warm

　　The heat preservation capacity of the room determines the downtime of the air conditioner-in the above estimation, we say that the most ideal air conditioner can be shut down for 40 minutes per hour. The 40 minutes here is determined by the heat preservation capacity of the room.

　　 If the room is relatively open and there is air leakage everywhere, even if the indoor temperature reaches the set temperature, the air conditioner shuts down, it will not stop for too long. Because it won’t be long before the temperature in the room drops again, the air conditioner needs to be started again.

　　 There are many factors that affect the heat preservation ability of a room, such as the airtightness of doors and windows, wall thickness, indoor and outdoor temperature difference, air humidity, and so on.

　　3. Set temperature 　　 The setting temperature of the air conditioner affects the demand for heat in the room and the insulation capacity (indoor and outdoor temperature difference)-coincidentally, it happens to be the two points mentioned above. 　　 When the air conditioner is heating, the lower the set temperature, the more power saving. In fact, there is no so-called "optimal temperature" for air conditioners. If you want to save money, you can turn on the lowest temperature, and if you want to be comfortable, turn on the highest temperature.