Turn on internal circulation or external circulation of air conditioner in winter

Turn on internal circulation or external circulation of air conditioner in winter

Turn on the internal circulation or external circulation of air conditioner in winter? Seeing that the weather is getting colder and colder, turning on the warm air inside the car has become the first thing for everyone to do after starting the vehicle. Now share a little knowledge about the internal circulation or external circulation of air conditioning in winter. Let's come together!

In fact, one of the automobile air conditioning systems is internal circulation and the other is external circulation. Hearing this name, you may feel at a loss. What does this mean? First of all, let's talk about external circulation. External circulation is to absorb wind from the outside of the car, and then blow it into the car after treatment. The advantage of this circulation is that the air can be updated at any time, and the turbid air in the car can be replaced with fresh air. If the window glass fogs, the fog can be quickly eliminated by external circulation.

The second is internal circulation, that is, the gas in the car itself is recycled. There are several situations: 1. When the air outside is not good, such as dusty or foggy weather, it is enough to use internal circulation at this time to keep the polluted air out. 2. If you want to get the effect of rapid cooling or heating, you only need to turn on the internal circulation, which is not affected by the outside air.

So is it external circulation or internal circulation to use air conditioning in winter? That's what the old driver said Under normal circumstances, the internal circulation is started first, so that the whole vehicle can reach the target temperature, usually about half an hour. After half an hour, external circulation ventilation can keep fresh air into the car. When driving at high speed, the oxygen content in the car is very important. If the internal circulation is always on, the oxygen content in the car will be less and less, which will make people dizzy, sleepy and cause accidents.

However, if the traffic jam in the city is serious and the exhaust gas content of cars outside is high, it is ok to switch to internal circulation directly.

Turn on the internal circulation or external circulation of air conditioner 2 1 in winter. Before you get ready to drive, open the door and open the window to ventilate for a while, and then get on the bus to start. After driving for a certain distance, close the window, turn on the air conditioner and turn on the external circulation. After the temperature in the carriage drops, it is replaced by internal circulation.

2, continuous use of internal circulation time, should not exceed 65438 0 hours. After a period of use, it is necessary to open the window for ventilation or switch to external circulation.

3. Don't use external circulation when the road surface outside the car is unclean and the air is dirty.

First of all, what is the inner ring and what is the outer ring.

The internal circulation of automobile air conditioning means that the air conditioning system is closed, and the air outside the car can only circulate back and forth with the air inside the car.

External circulation refers to the opening of automobile air conditioning system and the circulation of outside air to absorb outside air for circulation.

The advantage of internal circulation is that the cooling and heating effect of air conditioning system is fast. Disadvantages: Long-term use may lead to bad air in the compartment.

The advantage of external circulation is that the air inside the car is clean and a good environment inside the car is maintained. Disadvantages: the cooling and heating effect of air conditioner is almost poor, because cold air or hot air from outside will enter the car.

So after reading the advantages and disadvantages of the inner loop and the outer loop above, you should have the answer, when to start what mode.

Most people ignore a problem, carbon dioxide exceeds the standard. Driving used to be internal circulation, especially in summer. But every time I drive, I get a headache and carsickness. It would be even worse if there were many people on the bus. Later, I learned the concept of carbon dioxide and bought a watch, which exceeded the standard in a few minutes. No matter what happens now, there is basically no need for internal circulation.

It is 3 1 to turn on the internal circulation or external circulation of the air conditioner in winter. Of course, the cause of fuel consumption is not unilateral. As for turning on air conditioning and warm air in winter, will it increase fuel consumption? Actually, no, we can do this. As long as the water temperature reaches 5-60 degrees, we can turn on the air conditioner and turn it off. At this time, the air conditioning system will deliver the hot air from the engine, and when we adjust the temperature, the air conditioning system will gradually judge to mix the hot air from the engine with the outside air to provide a suitable interior environment, you can rest assured.

2, then it is better to use external circulation or internal circulation. In short, external circulation can be used, because using internal circulation in winter will make the glass foggy and make the driver sleepy, so don't use internal circulation unless the air outside is really bad.

3. Some drivers never open the window. As soon as they get on the bus, they turn on the internal circulation of the air conditioner, saying that dust will come in and affect the environment inside the car. This is not desirable. We usually open the door for air before driving, especially in winter. Turning on the air conditioner with internal circulation for a long time will make the driver's brain dizzy and affect his judgment and driving safety.