Rainy days, wet surfaces and low visibility pose considerable challenges to driving safety. In these weather conditions, in addition to careful driving, the proper use of car air-conditioning systems is also very important. In the face of rainy days, many car owners tend to ignore the use of air conditioners or to use them inappropriately, resulting in increased fog in the vehicle and obstruction of sight and safety risks. So, how do we choose the air conditioning cycle correctly when driving in the rain? This paper will be used from a number of angles to understand the problem and help to better address the challenges of day-to-day driving。
I. Rationale of the air-conditioning cycle model
Before we know how to correctly choose the circulation mode of air conditioners, we need to understand the rationale for the circulation pattern. Generally, there are two main cycles of air-conditioning systems in cars, namely, “inner cycle” and “outside cycle”。
1. Internal circulation
Internal circulation mode means that the air conditioning system of the vehicle only circulates the air inside the vehicle without any exchange with the outside air. In this mode, the air in the vehicle is reused, filtered and cooled through the air conditioning system, and eventually fed into the vehicle。
The primary function of the inner circulation pattern is to reduce rapidly the temperature in the vehicle and to be suitable for use in hot summers. In addition, internal circulation patterns have a certain sound-proof effect, which can effectively reduce interference with cars by outside noise and provide a more comfortable environment for passengers。
2. Outer cycle
Unlike the internal circulation mode, the external circulation mode means that the air-conditioning system of the vehicle introduces fresh air from the outside into the vehicle, mixes with the air inside the vehicle, and is then processed by the air-conditioning system and eventually fed into the vehicle。
The main function of the outer circulation pattern is to keep the air in the vehicle fresh and flowing, suitable for use in better-quality weather conditions. In addition, the outer circulation pattern has a certain dehumid effect, which can effectively reduce the humidity in the vehicle and prevent the presence of mold and odor in the vehicle。
Ii. What cycle mode should be chosen for driving in the rain
By contrast, it can be seen that there are advantages and disadvantages to both the inner cycle and the outer cycle, so what should we choose when driving in the rain
Quick defunct, should choose outcycle
When cars travel in the rain, because of the greater humidity of the external air, the fog cannot be removed quickly by relying solely on internal circulation patterns when there is fog in the window glass. At this point, we should choose the outer circulation mode, introducing fresh air from the outside into the vehicle, with the heating of air conditioning, so that the fog can be removed quickly and efficiently。
2. Avoiding increased fog, not choosing inner circulation
If, at this point in time, we choose the internal circulation mode and repeat the air inside the vehicle, the humidity inside the vehicle will increase, leading instead to an increase in the fog inside the vehicle and greater risks to the safety of the vehicle。
3. Maintain air circulation and use inner circulation appropriately
While we should minimize the use of inner circulation mode when driving in the rain, this does not mean that we can completely eliminate it. The moderate use of internal circulation patterns effectively keeps the air fresh and flowing in the vehicle and avoids infatuation and bad taste in the vehicle。
Iii. How can the circulation pattern of air conditioning be correctly used
Through the above analysis, we can draw some conclusions about the choice of the ac cycle mode when driving in rain, and how should we use the ac cycle correctly
1. When you first get in the car, you should choose the outer cycle and the hot wind to remove the fog
When we get in the car, especially in the rainy days, the window glass is likely to have a certain amount of fog, and then we should choose the pattern of exterior circulation, introduce fresh air from the outside into the car, then move air conditioning temperatures to the highest, wind speed to the maximum, and blow heat directly into the window window, so that the fog can be removed quickly and effectively。
2. When the fog is dispersed, it can be moderately switched to inner circulation
When the fog in the window window is completely dispersed and the sight is clear again, we can moderately switch to the inner circulation mode and repeat the air in the vehicle so that the temperature in the vehicle can be maintained effectively and the air in the vehicle can not be too dry。
3. Air quality in vehicles, regular cleaning of air-conditioning filter cores
In the use of air conditioning, we also need to pay particular attention to the quality of the air inside the vehicle, which, if used over a long period of time, could be contaminated with the air outside, with an aroma and a mold, at which point we could use some air cleaners, or place some fresh agent inside the vehicle to keep the air fresh。
In addition, we need regular cleaning of air-conditioning filter cores, because the main function of air-conditioning filtering is to filter dust and bacteria in the air. If the filter cores are not cleaned for a long time, there is a risk of congestion, failure to perform good filtering, and, instead, the introduction of some hazardous substances into the vehicle, which has a certain impact on the health of passengers。
When driving in the rain, we must pay particular attention to controlling the circulation and humidity of the air inside the vehicle and to the proper use of air-conditioning circulation patterns in order to ensure safe driving and bring a safe travel experience to ourselves and others。
In the course of our daily driving, we can also make modest improvements in the air quality of cars, such as placing plants in them or regularly cleaning and disinfecting them, which can be effective in improving the quality of air in cars and providing a healthier and more comfortable environment for passengers。
It was to be hoped that, in the rainy season, you would remain vigilant and be careful to drive safely, and that you would share the knowledge of the right air conditioners with your friends and work together to raise public awareness of safety and create a safe transport environment。
