In very cool weather, why do many luxury cars turn on the air conditioner with the windows closed?

Although it has rained heavily recently, the city where the servant is located has obviously entered a hot summer day. When driving on a hot day, the first thing to do when entering the carriage is to turn on the air conditioner except to start the car. But how to use the car air conditioner correctly to make us feel cool and save money? Just introduce some tips on using air conditioning ~

1, ventilate and cool down before turning on the air conditioner.

Don't turn on the air conditioner when you get into a car that has just been sunburned. When we open the car door, we usually feel a heat wave coming, because in the relatively closed environment inside the car, the air is not circulating, which leads to heat accumulation. Don't turn on the air conditioner until the body temperature drops. Because this can not only discharge harmful things from the car, but also make the cooling effect better and cooler!

At this time, you can open a car door and push and pull it hard (like a fan), or you can quickly suck the hot air out of the car. When the temperature in the car drops, start the engine and turn on the air conditioner, which is both fuel-efficient and good! At the same time, you can lower three windows and leave one closed, so that after air enters the car, it will gather in the back row to form a high-pressure area, forcing the hot air in the car to be exhausted from the back window.

Don't leave the air conditioner on all the time.

In summer, when we are driving on the road, the air conditioner can't be kept at the low level all the time, because if the air conditioning system is kept at the low level for a long time, it will produce a lot of dirt and even mildew. If people inhale, it will have a great impact on the body, so try to improve the low level!

At the same time, in terms of air volume of air conditioner, although air volume has nothing to do with fuel consumption (air conditioner, refrigeration and air outlet belong to two systems, and air volume is realized by changing the speed of fan, which will not affect fuel consumption), this does not mean that it is correct to always open the maximum gear, and greed may lead to migraine. After the temperature in the car is stable, the air volume gear of the air conditioner can be properly adjusted to reduce the noise in the car on the one hand and avoid physical discomfort on the other.

3. The air outlet direction of the air conditioner is upward.

Theoretically speaking, the principle of air convection is that hot air rises and cold air falls. Therefore, it is necessary to blow the air outlet of the air conditioner upward, so that the temperature inside the car can drop faster during the cooling process, and when the temperature inside the car reaches the set value, it can also reduce some fuel consumption. Special reminder, everyone needs to pay attention not to place any decorations in front of the air outlet of the air conditioner, which will block the air outlet and directly affect the cooling effect of the air conditioner.

4. Turn off the air conditioner before turning off the engine.

If we stop at the destination before turning off the engine, we must turn off the air conditioner before turning off the engine. Because if you shut down the engine directly, it will have a great impact on the engine, and after restarting, the starting load of the engine will increase and more oil will be consumed, so it must be remembered that something will definitely go wrong after a long time!

Don't turn on the air conditioner for a long time, and close the doors and windows.

Summer is coming, and many car owners and friends like to rest with the air conditioner on and the windows closed. This is completely wrong! Because the engine will idle for a long time when the air conditioner is turned on, the engine will produce harmful substances such as carbon monoxide when idling. Once people inhale for a long time in a coma, they will feel chest tightness and even suffocation! Therefore, it is ok to turn on the air conditioner at rest, open a little window properly, or open the skylight at a certain angle.