Air conditioner running vs. on electricity consumption

Turning on the air conditioner in summer is 26 times the most energy-efficient.

07/14 [Font: Large Medium Small] [Color: Red, Green, Blue, Black].

Nanning Evening News (Reporter Han Pei) "Indoor air conditioning in summer shall not be less than 26" is expected to be determined in the form of legislation. The reporter learned from the Construction Department of the Autonomous Region yesterday that the Legislative Affairs Office recently released the full text of the "Regulations on Energy Conservation in Civil Buildings (Draft)" for soliciting opinions, which stipulates that the state will implement an indoor temperature control system for public buildings that use air conditioning for heating and cooling, and strictly control energy conservation and electricity saving.

When refrigerating, increase by 2 can save 20% of electricity.

In the hot summer, air conditioners are the "big power consumers" in household appliances. How many degrees Celsius is the most suitable and energy-saving air conditioner? 26 is the most appropriate.

According to the relevant person of the Science and Technology Department, if the air conditioner works at the lowest temperature of 16 for a long time, because the room temperature needs a long time to reach 16, the compressor will run for a long time; If the temperature is set at 26, the room temperature can be reached in a short period of time and the outdoor compressor will stop.

Many medical experts believe that 26 is a comfortable and disease-prone temperature. A doctor from the ** Department of the First Affiliated Hospital of Guangxi University of Traditional Chinese Medicine said that it is difficult for the human body to adjust quickly from the scorching outdoors into the cool room, which will produce a series of uncomfortable reactions. A low room temperature can also lead to neuromodulation disorders, such as dizziness, tiredness, general malaise, lack of energy and decreased immune function, so the temperature difference between indoor and outdoor should be kept at 8 to 10.

In order to save electricity, many families use air conditioners when they turn on for a while when they are cold, and then turn them on again after a while when they are hot, is this scientific? "It's the wrong thing to do. The sales manager of a brand of air conditioner explained that this not only has an impact on the compressor of the air conditioner, but also consumes a lot of electricity.

The correct way to use it is to adjust the temperature of the air conditioner to a minimum of 16 after entering the room. Wait for about 5 minutes for the room temperature to cool down, and then increase to 26.

Increasing the temperature by 2 during refrigeration can save more than 20% of electricity.

It definitely consumes more power when turned on, and it is recommended not to turn it off for a short time.

An air conditioner that can both cool and heat is "cold and warm", and there is also an auxiliary heating type in the air conditioner, which is composed of two parts: indoor unit and outdoor unit. When the compressor working time is the same, the power consumption of refrigeration and heating is similar, so the refrigerant pressure decreases after it comes out, the temperature continues to drop, and it becomes a gas-liquid two-phase, and then enters the evaporator, and the refrigerant at this time is reheated and gasified in the evaporator, and the gaseous refrigerant with high temperature and low pressure returns to the compressor to continue circulation.

It is also run through the compressor, but different operation modes have different power consumption, and most people know it, because it is clear from the electricity cost generated, but it is impossible to say what the specific reasons are. Coupled with the shielding of the shell, the ability to radiate heat to the air or absorb the radiant heat of the air is also very general; Therefore, whether it is cooling or heating, air conditioning mainly relies on the convection of indoor air.

Just like a battery car and a bicycle, the same 48-volt battery car, the 12-amp battery is not as durable as the 20-amp battery. Just like a person who can pick a hundred pounds, he often picks fifty pounds, and he is comfortable and can cope with most situations. The principle of condensation heat dissipation, through the medium to transfer heat to indoor or outdoor, theoretically speaking, the transfer of the same heat consumes the same amount of electrical energy, but in practical life, air conditioning heating is often more power-consuming than refrigeration, let's look at the detailed analysis.

It's really distressing about the electricity bill, and enjoying the coolness while splitting late. In order to save electricity, some people will turn it off after a while, and turn it on again when it feels hot. There are also some people who will turn on the refrigeration and ventilation, thinking that this will save some electricity.

Actually, none of this is true. The air conditioner can be cooled and heated by the infiltration chain, and the power consumption should be the same. In fact, air conditioning and refrigeration are relatively energy-saving, and refrigeration consumes more electricity, which has a certain relationship with the working principle of air conditioning and the working environment of air conditioning.

Heating mode. Because the heating mode has a large temperature difference with the outside environment when operating, it consumes a lot of electricity.

The heating mode consumes more electricity, because when the temperature is very low, the air conditioner absorbs heat very slowly, so it is more power-intensive to heat up.

The cooling mode is more power-hungry because it requires a certain amount of cold air and also consumes a lot of heat.

Air conditioning consumes more electricity to make heating. Cooling is still very simple, but it can consume a lot of convenient electricity in heating.

The heating mode of air source is very power-consuming, because the air conditioner needs a simple amount of electricity to consume the cream in it when it is running, so it is very power-consuming when the air conditioner is heating.

Yes, the power consumption of the air-conditioning compressor is very large, and frequent switching on and off is also not good for the air conditioner, not only can not save electricity, but also has a certain impact on the service life of the air conditioner, it is recommended not to switch on and off frequently, and do not frequently adjust the temperature up and down. The starting current of the air conditioner compresses the hail limb machine, which is 2 3 times that of normal operation. Therefore, the frequent start of the air conditioner will increase the power consumption.

After the AC inverter air conditioner and DC speed control air conditioner compressor are started, the compressor will not stop running until it is shut down. This is also a major factor for the power saving of rheological inverter air conditioners and DC speed air conditioners. Frequent switching on and off of an air conditioner is more power-intensive than keeping the temperature constant for a long time.

Frequent switching on and off of the air conditioner has little impact on the power consumption problem, but it has an impact on the air conditioner compressor chain. Because when the air conditioner starts, the starting current is several times that of the current under normal operating conditions, but the starting time is shorter, so the increase in power consumption is not obvious. Due to the large starting current, it is not good for the compressor.

Under normal circumstances, if it starts again half an hour after the shutdown, do not turn off the air conditioner; If there is a long interval between starting again after a shutdown, turn off the air conditioner.

Many people think that when the room temperature drops, the air conditioner should be turned off and turned on when it is hot, thinking that this will save electricity. In fact, whether the air conditioner saves power depends to a large extent on the number of times it is turned on, and the air conditioner consumes the most power when it is turned on and off, especially when it is started, and it is easy to lose the compressor when traveling. The right thing to do is:

When the air conditioner is turned on, set it to a high cold state to achieve the purpose of cooling as soon as possible, and when the temperature is suitable, change to medium and low air to reduce energy consumption. When setting the room temperature, do not set the temperature too low, generally the temperature difference between indoor and outdoor should not exceed 7, set the temperature high 1, can save energy 7 8. If you feel that it is not cool enough, you can lower the set temperature by a few degrees after a period of time, so that the time for the air conditioner to run in a high-frequency state can be relatively shortened, which can achieve the effect of saving electricity and energy.

If the air conditioner is too cold during operation, there is no need to turn it off, as long as the set temperature is increased.

When using the air conditioner, we should make full use of the timing function, so that after the room temperature is lowered before going to bed at night, the air conditioner can not need to run all night, and generally set two messes and three hours wide when sleeping. If you are really afraid of bright heat, you can also set the air conditioner to sleep when you sleep at night, this function can not only make people sleep comfortably, but also achieve a power saving effect of 20%. For those families who also need to turn on the air conditioner during the day, it is best to buy an inverter air conditioner, because it can adjust the frequency and output air volume of the motor according to the temperature of the room, when the room temperature reaches the set temperature, the compressor will automatically switch to a low-speed operation and low energy consumption state, and will not turn on the compressor as frequently as ordinary air conditioners.

Although this kind of air conditioner is higher, in the long run, it will save a lot of electricity compared to ordinary air conditioners, and it is still very cost-effective compared to the money investment when it was originally purchased. Sometimes when the weather is hot and uncomfortable, you don't have to lower the temperature of the air conditioner again and again, then you can put the air conditioning mode to dehumidify and let the indoor humidity come down, so that even if the relative temperature is a little higher, it will make people feel comfortable and cool.

When the air conditioner is first turned on, the air conditioner needs to run continuously for a period of time to reduce the indoor temperature to the set value due to the large difference between the set temperature value and the indoor temperature. After the temperature is lowered to the set value, the air conditioner will enter the state of intermittent operation, except for the continuous operation of the fan, the compressor is intermittent work, and the power consumption is naturally less than that of continuous attitude and finger work.

As for some friends who criticize not to start and stop the air conditioner frequently, they think that it is not necessary, because the air conditioner is in automatic temperature control mode after starting (unless it is manually set to continuous working mode), so the power consumption of the manual start-stop mode will not be greater than that of the automatic start-stop mode. Some people think that the air conditioner consumes a lot of power at the moment of starting, and even can see the lights flashing, which is mainly caused by the large power of the air conditioning motor and the large starting current, which causes voltage fluctuations. As for whether it consumes a lot of power, to be precise, the time is very short and negligible.