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It does not matter. The core of the air conditioner is the compressor, which is connected with the engine crankshaft by a belt, when the air conditioner is not started, the compressor pulley is idling, and the compressor works when starting, which consumes engine power and increases fuel consumption.
There is a heat exchanger behind the instrument panel, where the refrigerant (in the past, Freon, now R134A, etc.) passes, and behind the exchanger there is a fan to feed the cold air into the air supply duct. Therefore, the change of fan air volume does not affect the change of cooling capacity, so it has almost no impact on engine fuel consumption.
The air conditioning compressor of large cars and economy cars, either on or off, regardless of air volume regulation or temperature regulation, will not change its power consumption. (The temperature knob only adjusts the distribution of hot and cold air).
The high-end car has a temperature control device, which automatically starts and stops the compressor according to the set temperature. Therefore, if you want to save fuel, you can artificially adjust the start and stop of the compressor, and you can only not turn on the air conditioner, especially for cars with small displacement.
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Generally speaking, there are two types of automotive air conditioners, one is automatic, that is, the car with an invariable compressor. The other is manual, that is, a variable compressor car. If.
Your car is a compressor with an immutable displacement, so you don't need to save fuel to adjust the temperature and wind speed, because the car with a fixed displacement air conditioning pump is almost rated as long as the air conditioning is turned on, regardless of the temperature and air volume. On the contrary, the fuel consumption of the variable compressor is related to the temperature.
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There is no impact. At the heart of the air conditioner is the compressor compressor, which compresses the refrigerant into a high-pressure saturated gas (ammonia or freon), which is then condensed through a condenser.
After throttling through the throttling device, it is passed into the evaporator to cool the medium that needs to be cooled and exchanged for heat. For example, if the evaporator is connected to each room in the building, the snake pipe in the evaporator will exchange heat with the air, and then blow the cold air into the air in the room through the air blast.
The refrigerant in the snake tube of the evaporator becomes low-pressure vapor after heat exchange, returns to the compressor, and is then compressed by the compressor, so that the recycling completes the refrigeration system. Therefore, the change of fan air volume does not affect the change of cooling capacity.
Air conditioning type: 1. According to the drive mode, it is divided into: independent (a dedicated engine-driven compressor, large cooling capacity, stable work, but high cost, large volume and weight, mostly used for large and medium-sized buses) and non-independent (air conditioning compressor is driven by the automobile engine, the refrigeration performance is greatly affected by the engine work, the stability is poor, and it is mostly used in small buses and cars).
2. According to the performance of air conditioning, it can be divided into: single function type (the refrigeration, heating and ventilation systems are installed separately, operated separately, do not interfere with each other, and are mostly used in large buses and trucks) and integrated cooling and heating (refrigeration, heating, ventilation share blowers and air ducts, which are controlled on the same control board, and can be divided into a combination of cold and warm air working separately and a mixed temperature control type that can work at the same time. Cars are mostly used with mixed temperature control).
3. According to the control mode, it is divided into: manual type (toggle the function key on the control board to control the temperature, wind speed and wind direction) and electro-pneumatic adjustment (using the vacuum control mechanism, when the air conditioning function key is selected, the temperature and air volume can be automatically controlled within the predetermined temperature).
4. According to the adjustment mode, it is divided into: automatic adjustment (using the calculation and comparison circuit, through the sensor signal and pre-adjustment signal to control the adjustment mechanism to work, and automatically adjust the temperature and air volume) and the automatic adjustment of microcomputer control (with the microcomputer as the control center, to achieve all-round, multi-functional optimal control and adjustment of the air environment in the car).
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Hello friends, theoretically it has an impact on the fuel consumption of the car, because the larger the air volume, the more electricity is consumed, which increases the load on the generator and the engine. But in fact, the size of the air volume does not consume much oil. Thank you.
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Hello, no direct impact. The air conditioner blower is powered by a battery, but the battery is charged by the engine. So there is still an impact.
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In general, there is an impact, after all, the air conditioner consumes electricity, and the electricity must be generated by the car itself!
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Of course, it has an impact, this is the same as the air conditioner used at home, but one eats oil and the other eats electricity.
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It will have a little impact, but not much.
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Automobile air conditioning has two systems of air outlet and refrigeration, refrigeration is easy to make the car produce fuel consumption, but the air volume and fuel consumption are not much related, the air volume is large, the motor runs fast, so it only consumes more electricity, and the fuel consumption is almost negligible.
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There is a close relationship between the air volume of the air conditioner and the fuel consumption, the larger the air volume, the greater the fuel consumption of the car.
Only adjusting the wind speed without adjusting the temperature of the air conditioner does not affect the fuel consumption, and the wind speed does not affect the compressor, so the fuel consumption remains the same, but the wind speed is large, the battery power consumption increases, the generator does a lot of work, and the fuel consumption becomes larger, but the fuel consumption caused by the temperature adjustment of the air conditioner is negligible.
Because the compressor of the air conditioner is connected to the engine of the car, it can only work when it is driven by the engine. Due to this operating principle, if the air trap pounce is using a low air speed mode, then the compressor needs a low speed.
The load loaded on the engine is light, which has the least impact on fuel consumption, and conversely uses the high wind speed mode, the compressor needs a high speed, and the load on the engine is heavy, so the impact on fuel consumption is greater.
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Summer is a relatively hot weather, so many car owners must turn on the air conditioner when driving the car, and when the air conditioner is turned on in the summer, the air volume has a direct relationship with the fuel consumption, the basis is that the compressor has to work when the air conditioner is running, the compressor will work with the engine, so that the load of the engine work increases, then the fuel consumption will increase, if the air conditioner is turned on, it means that the air volume is large, and the working intensity of the compressor is large, resulting in the engine to do work. In this way, the fuel consumption of the car will rise significantly.
First, the size of the air volume is related to fuel consumption.
If there is no air conditioning, the car will be very stuffy when driving in summer, which is very poor for the driving experience of the driver and passengers. However, there is a direct relationship between the size of the air volume of the air conditioner and the fuel consumption, after all, the operation of the air conditioning compressor requires the engine to work, and the larger the air volume, the faster the operation speed of the air conditioning compressor, which will greatly increase the load of the engine, thereby increasing the fuel consumption of the car. <>
Second, the bigger the car air conditioner is turned on, the more obvious the increase in car fuel consumption.
There are many car owners should find such a phenomenon, that is, the fuel consumption of the car in the summer is very high, often much higher than the fuel consumption in the winter, the reason is that the summer season is very hot, many car owners will use air conditioning in the process of driving, and the air conditioning itself is a very power-consuming accessory, the operation of the air conditioning compressor needs the engine to transmit power, so it directly leads to the increase of the fuel injection of the engine, which directly leads to the soaring fuel consumption of the car. If the air conditioner is turned on louder, then the increase in the fuel consumption of the car is more obvious. <>
3. Summary. After all, the air-conditioning compressor of the air-conditioned car has to work, and part of the force of the work needs to be maintained by the engine, so the engine increases the load, which directly leads to the increase of fuel consumption. <>
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No. The refrigeration and air outlet of automobile air conditioner are two systems, and the size of the air volume of the air conditioner is determined by the speed of the blower, and the power of the blower is not directly related to fuel consumption.
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If the air volume of the air conditioner is relatively large, then the fuel consumption of the car will be relatively high, so there is a direct relationship. The basis is that it is more expensive to turn on the air conditioner in summer, and it will also consume more fuel.
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Generally speaking, it doesn't matter much in such cases; It is related to the relevant blower, the larger the air volume, the greater its power, and the fuel consumption will increase accordingly.
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As long as the temperature is low, the fuel consumption will be large. The air volume will be large, but it is not too big, and the temperature has the greatest impact on fuel consumption. Therefore, you don't need to adjust the temperature too low to turn on the air conditioner, take the feeling of not being hot as the standard, adjust it at any time, and don't adjust it and never move again.
Towards the sun, turn it low, and turn it up a little higher in the morning or evening.
It is mainly controlled by a temperature sensor on the evaporation chamber. When the temperature of the evaporation chamber is higher than 4°C, the air conditioning compressor is turned on; When the temperature of the evaporation chamber drops below 4°C, the air conditioning compressor is disconnected. Obviously, the higher the speed of the blower, the more hot air flows through the evaporation tank, the higher the temperature of the evaporation tank, the longer the air conditioning compressor works, the greater the load on the engine, and the more fuel consumption increases;
On the contrary, if the speed of the blower is lower and less hot air flows through the evaporation tank, the temperature of the evaporation tank will soon drop below 4°C, the air conditioning compressor will be disconnected in time, the engine load will be reduced, and the fuel consumption will return to normal levels.
Both reciprocating and rotary types are used to varying degrees in automotive air conditioner installations. Reciprocating compressor came out at the earliest, is still widely used in a model, (such as: BOCK, Bitzer compressor), as far as the reciprocating compressor is concerned, the technology is more mature, the production and use have accumulated rich experience, the material requirements are low, the processing is easy, the cost is low.
It can adapt to a wide range of pressure and cooling capacity, and has high thermal efficiency.
The disadvantage is that due to the reciprocating operation of the piston, the power balance performance is poor, which limits the increase of the speed of the compressor, the structure is complex, there are many wearing parts, and the maintenance workload is large. The rotary compressor has a rotating motion in its working volume and no reciprocating motion mechanism, so it has good dynamic balance performance, stable operation, low vibration, and high efficiency within its suitable working range.
In addition, the rotary compressor has a simple structure, small size, light weight, few parts and high reliability. However, rotary compressors have a smaller displacement and are generally used in air conditioning systems with small cooling capacity, such as car air conditioning systems.
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Yes. If it is a fixed-displacement compressor, because its displacement is certain, no matter what the temperature is adjusted by the driver, as long as the air conditioner is turned on, it will work at full load. Therefore, when the air conditioner is first turned on, the temperature has no effect on fuel consumption.
After running for a period of time, if the temperature of the evaporation tank is too low, or the pressure of the air conditioning line is too high, the compressor will stop working. When the temperature rises, it starts working at full load again, which means that it either doesn't work or works at full load.
So the longer you don't work, the lower the fuel consumption. If the temperature in the car is very low, then a large amount of cold air is blown into the cabin, the temperature of the evaporation tank will not be too low for a long time, the compressor will not be shut down, the working time is long, and the fuel consumption is high. If the temperature is adjusted a little higher, the amount of cold air entering the compartment is small, and it must be accumulated on the evaporation box, so the temperature of the evaporation box will drop quickly, and soon the compressor will be shut down, and the fuel consumption will be lower after a long downtime.
Many cars with fixed displacement compressors have encountered this kind of problem, and when driving at high speed, they only hear the blower whistling and blowing, but there is no wind coming out. This is caused by the fact that the compressor does not stop for a long time, resulting in the surface of the evaporation tank being frozen. If the surface is frozen, the wind will naturally not be able to penetrate the evaporation tank, and there will be no wind coming out.
It is certain that the car consumes fuel when it is refrigerated and air-conditioned. It's just that it's fuel-guzzling, but it's not necessarily. Because the vehicle air conditioning and refrigeration require the compressor to work, and the work of all the equipment systems of the vehicle will increase fuel consumption, not to mention that the air conditioning compressor is not a very small device.
Generally, when the refrigeration and air conditioning are turned on, the fuel consumption will increase by about 10%.
How much fuel consumption increases after the vehicle turns on the refrigeration and air conditioning is also related to the temperature of the driver turning on the air conditioner. The lower the temperature, the higher the fuel consumption, but the vehicle air conditioning is on or not, the original increase is not particularly powerful, and it is not as good as the peak of commuting in the urban area.
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Some. The amount of air volume does not affect the work of the compressor, but only the work of the blower. Because the power of the blower is not large, the power consumption between the lowest gear and the highest gear will not be too different, so the air volume has a slight impact on fuel consumption, which can be basically ignored.
So if it's not cool, don't worry about the air volume, just turn it up a little higher.
Yes, the same as household air conditioning, the lower the temperature, the more energy is consumed, how can air conditioning come without consuming energy? However, depending on the compressor, the impact of the set temperature on fuel consumption is also different. If the temperature is lower, the compressor will maintain a high displacement for a long time, and the fuel consumption will be large.
When the temperature is turned up, the compressor can reduce the displacement, the load of the car will also be reduced, and the fuel consumption will be reduced.
For automatic air conditioning, in the case of temperature setting, the size of the air outlet volume of the car air conditioner has no effect on fuel consumption, and the size of the air output volume will only affect the cooling speed in the cabin; For manual air conditioning, the temperature can not be set directly, it can only be adjusted by the size of the air outlet, the higher the air outlet, the lower the temperature in the cabin, the longer the working time of the air conditioning compressor, and the higher the fuel consumption of the car. However, this increase in fuel consumption is very small, and it is almost negligible compared to the normal fuel consumption of the car.
When using the air conditioner, it is best to cool the air conditioner to the temperature we need quickly with the maximum air volume, and then maintain this temperature at a lower wind speed.
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