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When the car was exposed for several hours under the hot sun, the door opened and the heat wave rushed forward. Many people would immediately turn on the air conditioner. They did not know that this would have wasted a lot of energy. Many commuter owners, who usually stay indoors at work, only have a temperature of about 20°C, and they get into a car at work, but they experience a high-temperature sauna in the vicinity of 50°C. The huge gap makes it difficult to adapt, so the car is heated at high temperatures. Maintenance, it is very necessary to cool down and cool down. But direct air-conditioning cooling and too energy-consuming, there is no other rapid cooling method? The author has collected several methods that have been widely circulated on the Internet to conduct an experimental comparison, and interviewed Chen Chen, a driver with more than ten years of age, to comment on these methods.
The author opened the car to the outdoors without shelter, closed the windows and skylights, and the temperature in the car rose rapidly. The mercury column of the thermometer could be seen to rise slowly. After 10 minutes, the interior temperature rose to 39°C.
The easiest repeatedly switch the door <br> <br> some owners experiencing the same steamer cars, will choose to start the car, turn on the air a few minutes later the car in the case of windows, skylights were shut tight. The author's first experiment is this method that is not a method. The author started the car in place, and opened the air-conditioner to the maximum air volume in the airtight compartment (to achieve a comparative effect, the air-conditioner would be driven to the maximum, minimizing the impact on the thermometer). Despite the cool air from the air outlet, the inside of the cabin was still very hot and the mercury column of the thermometer dropped very slowly. About 5 minutes later, the thermometer showed that the temperature was still higher than the outside of the car, which was 30.5°C.
The driver Chen told us with his experience that in the case of high temperature inside the car, closing the window and opening the air-conditioner to “forced†cooling would be done by some inexperienced new drivers, although the air-conditioning can also be used to cool down to the maximum. The effect, but large fuel consumption, has a certain impact on the engine, and the cooling rate is not fast. In fact, the easiest thing is to start the vehicle and then open the window after getting on the train. At this time, you don't need to open the air-conditioner first, then roll down the window on the door of the cab, and then repeatedly switch the door of the cab position 10 times. . Within two minutes, the temperature inside the car can drop by nearly 5 degrees Celsius.
Then you can drive directly. As the air convection heats up, the temperature in the car rapidly falls to the equilibrium with the outside temperature, which takes about a minute or two. After closing the road, close the window and turn on the air conditioner. The air conditioning cycle must be placed on the inner cycle. Since the cold air sinks, the air-conditioning wind direction is preferably blown upwards during cooling. Because the hot air floats on the cold air, the switch door brings a large amount of cold air into the vehicle. Repeatedly 10 times, the air circulation inside and outside the vehicle is strengthened, and the hot air is rapidly discharged, so the cooling is very fast.
Reminder: When you open the main door, you only need to shake down the driver's window. This effect is better than fully opening the door. This will also prevent the door hinge from rusting.
To spray the car ineffective <br> <br> In addition to the car spray cooling method is also widespread on the Internet. The author prepared a sprayer and loaded three quarters of water. Then turn off the car and close the window so that the temperature in the car will rise again to 39°C. In the absence of windows and doors, the author sprayed tap water into the car with a sprayer for half a minute. The mercury column of the thermometer did not change and still showed a temperature of 39°C. However, because of the spray of water, the car was very stuffy except for heat. Some owners prefer to cool the vehicle by spraying the surface of the car. In fact, this method is most undesirable.
Master Chen said that after the sun exposure, the car can not be cold water showers, just as people should not immediately take a shower with cold water after strenuous exercise. Car metal parts also have the characteristics of thermal expansion and contraction, the vehicle after exposure, the paint surface temperature of up to seventy degrees or even higher, then spraying the vehicle, can easily lead to damage to the paint surface, the phenomenon of paint off . There is also no way to pour cool water after driving at high speed. If the temperature of the engine and the tire is too high at this time, the service life of the engine will be directly affected, and the internal structure of the tire will also change due to the sudden cooling, resulting in different deformations between the layers of the inner carcass of the tire, causing early damage to the tire, even Causes the stripping of the cord.
Use the sun visor and the most convenient foil <br> <br> addition to measures "physical" cool to the car, you can also do some other protection, like the girl in the summer not only to hold the umbrellas, but also Sunscreen.
When the vehicle is parked, a sun visor is placed on the front and rear windshields so as to prevent direct sunlight from rising to increase the interior temperature of the vehicle and achieve a cooling effect. In the automotive decorative products market, the price of cheap visor is about ten yuan, and the visor with a large reflectance is more effective. The principle is that the sun visor is usually made of tin foil, and its material has a good reflective effect. It can block 80% of the sun's glare. Using it will not make you feel hot when you enter the car. Before and after the windshield can also consider the film, the price is generally more than a thousand dollars, in addition to windshield glass film can prevent direct sunlight, there are protection, cleaning windshield role.
According to Master Chen’s experience, he said that owners should not only consider the convenience of transportation when parking their vehicles, but also consider the issue of preventing vehicles from being exposed to the hot sun as much as possible and park them in a cool, ventilated place.
At the same time, when washing cars in summer, you can often clean the water tank and remove the debris attached to it, so that the engine can easily dissipate heat. In addition to the above methods, when the car is parked, some windows will be opened, and the use of insulated sunscreen clothing and car curtains will also provide a good cooling effect.
