How much degree should the air conditioner drive?

Just the word!

三伏天已经开始，各地的气温也是争创新高，不仅出现了很多热射病的病例，还有哪怕撞断了6根肋骨仍然要先爬到树荫下的无奈……面对如此高温，最What can save us is the air conditioner.

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So how many degrees should the air conditioner be turned on?

Some people can open how low and low, and some people believe that 26 ° C is the most comfortable and electricity, and some people say that 28 ° C is the most suitable. So which kind of statement is correct?

Let's talk about the conclusion:

The most suitable temperature of the air conditioner is not necessarily 26 ° C or 28 ° C, but the temperature is higher, which is indeed more power -on.

Let's talk about it.

01

What happened once?

We all know that the air conditioner is an electric tiger, which is very consumable, and the lower the temperature, the more electricity, but how much does the power consumption change? According to the actual measurement of air -conditioners in Maoming, Guangdong in 2015, if the air conditioning setting temperature decreases from 26 ° C to 25 ° C, the power consumption will increase by 47.89%. The power will increase by 134.35%, that is, the power consumption is multiplied by two more [1]. Therefore, don't underestimate this little time, the impact is really not small.

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Of course, the power consumption of air conditioners is affected by the many parameters, which is related to the temperature, humidity, wind speed and other meteorological conditions, the level of air conditioning itself, the refrigerant, the structure of the air conditioner, etc. The impact is not necessarily the same, but many experiments show that the overall trend is still "raising one by one and saving power."

So what about the macro scale?

According to the 2013 "Annual Development Research Report of China Construction Energy Conservation", even in 2011, the power consumption of air -conditioning in urban houses in my country also reached 52 billion KW · H, which is 16.03 million tons of coal, accounting for 10.4% of total residential energy consumption consumption. Essence Based on this as the base, if you can increase the air conditioner by 1 ° C, how much electricity can save.

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Speaking of which, it is necessary to correct a misunderstanding, that is, some friends have adjusted the temperature of the air conditioner to make the air conditioner particularly low because of the hope of letting the air conditioner refrigerate, but this method is not reliable. Because the way to work in the air conditioner is to "cool down the air in the house as soon as possible, so that the room temperature will be kept after setting the temperature", not "the air conditioning of setting the set temperature directly", so the setting temperature level does not affect the height and low and low and low. The temperature of the wind blowing from the air conditioner, and in case you forget to adjust it ... that's the cold wind, the electricity fee is rushing ...

02

Is there really the best temperature of air conditioning?

In fact, if you want to study carefully, how many degrees of air conditioning is a very complicated thing, because the feeling of "coolness" is more subjective, and if you want to optimize to the extreme, you need to consider the temperature, humidity, and wall heat conduction of the indoor and outdoor environment. , Sunlight, dynamic changes in the room [2].

In fact, this is also an important issue for engineers. They need to predict the temperature change curve of the day according to the meteorological data and model, and the various conditions in the building to calculate the conditions of people to calculate the comfort of people, so that the air conditioning setting temperature can be able With the dynamic adjustment of the specific circumstances, the purpose of energy saving and emission reduction is achieved. Therefore, I am afraid that it cannot be simply said that the air conditioner has the most suitable set temperature.

Of course, such fine control is often used for large -scale office buildings, and our own home does not need to be so accurate. In the case of making ourselves more comfortable, the temperature can be adjusted. Considering that the family can be adjusted slightly during the day during the day. At night, people have to sleep, and when the temperature is raised, it is only necessary.

03

Open the air conditioner like this, save power and healthy

Many friends who like to blow the air conditioner may be a bit grievance. Although the temperature is high, it can be energy -saving, but it is really hot. Of course, this mood can be understood, let's talk about how to turn on the air conditioner.

First of all, we need to know that low temperature will make us cool, but if you want to feel cool, you will not only cool down one way. For example, we can use small fans such as air circulating fans at home to circulate the air in the house, which helps to make the temperature distribution in the house evenly, and the breeze can help us feel cool. Let the air -conditioning air in the roof also help the whole house to cool down. In addition, it is necessary to ensure that the air conditioner is not blocked, so as not to judge the temperature inside the house. And the humidity of the air will also greatly affect our feelings of "heat", so the humidity is too high to expel wetting, don't blindly lower the temperature.

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As for friends who are very low and covering the quilt ... Otherwise, let's withdraw the quilt first.

When it comes to air conditioners, there are two types of people who need to pay special attention. The first is the little baby. They are metabolism and are easy to sweat in the summer. It is easy to cause skin problems such as mules in the long run, which makes the baby itchy and painful or even affecting sleep. Good wind, you can't blow directly.

Then the elderly, their metabolism slows down, it is easy to feel cold, and many of them have cardiovascular and cerebrovascular diseases. In this case, the temperature of the air conditioner should not be too low, especially if it is too large with the outdoor temperature, so as not to cause sudden cold and heat when entering and leaving the door, and inducing cardiovascular and cerebrovascular diseases. ℃.

Finally, let's summarize, we actually don't need to overdo the temperature of the air conditioner.But we must also remember that if we feel cool enough, click the remote control to raise the air conditioner once, we will not only participate in energy conservation and emission reduction, but also save electricity bills.In addition, don't forget to ventilate the house regularly.Author | Ding Yan

Review | Qin Zongmin China Refrigeration Society Senior Engineer

references:

[1] Wang Qian, Meng Qinglin. In summer, the setting temperature of the air -conditioner setting temperature on power consumption is measured [J]. Building energy conservation, 2015, 43 (11): 5.

[2] Ma Qing, Li Diqiang, Nie Qingzhen. Dynamic optimization control research of the temperature setting value setting of public buildings [J]. System Engineering Journal, 2011, 26 (4): 7.

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