Hello everyone, I'm Xiao Li. I often see many people reluctant to turn on the air conditioner when driving, especially now that the weather is getting hotter and hotter, it is really uncomfortable not to turn on the air conditioner in the car, but turning on the air conditioner will increase fuel consumption, resulting in many people driving are not very willing to turn on the air conditioner, and would rather open the window and eat ashes. How much fuel consumption will be increased by turning on the air conditioner, and is it worth giving up the comfort of the air conditioner in order to save fuel? Today Xiao Li will talk to you about this problem, hoping to help you.
The power of the on-board air conditioner comes from the engine of the car, and the compressor of the air conditioner is driven by the engine, so that the refrigerant is continuously circulated and the refrigeration effect is obtained. Under normal circumstances, the AC button needs to be pressed when the car air conditioner is turned on for refrigeration to let the compressor work, and we don't need to let the compressor work when we turn on the heating and air conditioning in winter. Therefore, under normal circumstances, turning on the refrigeration in summer will burn about 10% more gasoline than turning on the heater in winter. But the car has a characteristic of air conditioning, that is, the higher the power output of the engine, the lower the impact of the air conditioner on fuel consumption, to put it bluntly, the larger the car displacement and the faster it drives, the smaller the impact of the air conditioner on fuel consumption.
- How much does turning on the air conditioner increase fuel consumption?
My previous unit drove to and from work for about 70 kilometers, under normal circumstances, adding 200 pieces of 92 gasoline can be turned on for 7 days without turning on the air conditioner, our 92 gasoline is more than 8 yuan a liter, 200 is 25 liters, and the average daily consumption of gasoline is about 3.6 liters. But I've been running that road for a few years, and basically every time I need to turn on the air conditioner to drive in the summer, I can only drive for 6 days with the same 25L of gasoline, which is equivalent to about 4.2 liters per day. In the case of turning on the air conditioner, I burn about 0.6 liters more every day, and if I want to turn on the air conditioner every day, I will spend almost 5 yuan more, and I will spend 150 yuan more in a month. But the 150 yuan was saved after giving up the comfort of turning on the air conditioner. If I had driven less distance, I wouldn't have saved so much money. Without turning on the air conditioner, the whole back of the car is wet, and even the seat is wet, which is very uncomfortable, and the few dollars saved are not enough to wash the car, it is really not necessary.
- When you get on the highway, do you feel that the fuel consumption is higher, and it has anything to do with the air conditioner?
After driving on the highway, many people feel that when the car reaches 120, the fuel consumption is higher than usual on the national highway, and they think that it is caused by the air conditioner. But in fact, the fuel consumption at high speed is larger than usual, and the air conditioning has nothing to do with it, although the compressor of our car air conditioner will occupy part of the output power of the engine, resulting in the fuel consumption of the engine becoming larger. But the power of the compressor itself is too low, the output power of our engine is relatively high when running at high speed, at this time the impact of air conditioning on the engine has been minimal, but the air resistance has a greater impact on fuel consumption during high-speed driving, and the fuel consumption of the engine will be even higher than that of closing the window and opening the air conditioner.
The fuel consumption of the car is greater after the high speed, mainly because of the displacement of the car, the displacement is relatively small, the power is relatively weak, and the car is pushed to a speed of 120, it is necessary to consume more gasoline. The economic speed of this kind of car is generally between 90 and 100 per hour, and driving to 120 is no longer in the range of economic speed, and the faster the speed, the greater the fuel consumption.
- The lower the temperature of the air conditioner, the more fuel it consumes
In order to save costs, many cars use fixed-frequency compressors, no matter how low the temperature of this compressor is, its impact on fuel consumption is the same, as long as the AC button is on, he is working at a fixed frequency, so the impact of high temperature and low fuel consumption of this air conditioner is the same. However, some cars use inverter compressors, when the temperature in the car reaches the set temperature, the compressor will stop working, and when the temperature rises, it will continue to work. The lower you turn the temperature down, the shorter the compressor downtime and the greater the fuel consumption.
In general, if you are a small displacement car, then basically the impact of the air conditioner on fuel consumption is still relatively large, such as the Toyota Vios I drive, as soon as the air conditioner is turned on, I feel that the fuel gauge falls faster. But when I opened the famous picture in my hand, I couldn't feel the change in fuel consumption at all with or without the air conditioner. On the contrary, when I drive by myself, the fuel consumption is higher if I drive more intensely, and the fuel consumption is lower when I drive leisurely, so for me, I don't think there is any need to not turn on the air conditioner in order to save fuel. Instead of saving one or two liters of fuel, I might as well click on it and press the accelerator lightly to save more.