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Why does fuel consumption increase when the speed of a car increases?
Wiki User
∙ 13y ago
A car needs fuel to run. So when a car increases speed, its need for fuel increases too. The faster the car is going, the greater the need for fuel to burn will be. The same is true of when a car decreases speed. When a car decreases its speed, it does not have to burn as much fuel.
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The wind resistance against a car varies with the cube of its velocity. This means that the amount of power needed to overcome the wind resistance is 8 times as much when the speed is 2 times as much. At 50 or 55 miles per hour, most cars are putting over half the fuel they consume into overcome atmospheric resistance, where at 25 miles per hour it would be less than ten percent. This in turn means that the number of miles per gallon of gas is reduced by quite a lot as the car goes faster.
Wiki User
∙ 13y ago
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How much will old oil increase fuel consumption?
It will not increase fuel consumption.
Does driving with all lights on increase fuel consumption?
No it does not affect fuel consumption.
Does overdrive increase fuel consumption?
No, fuel consumption is decreased, the vehicle rev's lower.
Why is driving at 30 mph better than driving at 40 mph?
I'm guessing that the answer they're looking for here is that as the speed increases the wind resistance increases more. This means that if you want to go 10 % faster maybe your fuel consumption will increase with 15%. Staying below the speed where wind resistance really begins to hurt lets you get away with using less fuel, which is better for the environment.
Does load affects fuel consumption per hour of a diesel generator?
If the generator is to maintain the same rpm and power output, then a heavier load will increase the diesel consumption. The revolutions per minute the generator runs will increase as the load increases, thereby resulting in an increase in diesel consumption to maintain the high rpm. A Generator has a governor which attempts to maintain frequency at 60 Hz for North America. For the generator to increase the power output at the same frequency, the governor will increase the fuel and air to the engine. The fuel consumption will not be linear because of the curves associated with the particular engine. The fuel to KWH is know as the heat rate curve for the generator.
Does silencer increases fuel consumption?
Not enough that you would ever notice.
What is the function of an accelerator in car?
The function of an accelerator in a car is to increase the speed of the car. When the accelerator is pressed, the car gains speed because an increased amount of fuel is added to the motor's consumption.
Does the silencer increase fuel consumption?
Not enough that you would ever notice.
Has the UK ever had no speed limits?
Before the 1940s there were no speed limits, as there was no need for them. The road system didn't support high speed travel to such an extent that a law restricting speed was a requirement. The speed limit was a twofold measure to limit fuel consumption and increase safety.
Is fuel consumption for bulk carriers same as for container ships?
Fuel consumption is dependant on the power required to operate the ship. This is a function of the vessels design speed and resistance or drag. A container vessel travels at much higher speeds than a bulk carrier and since an increase in speed will lead to a cubed increase in fuel consumption, it takes a lot more fuel to travel at this higher speed. However, the drag of a bulk carrier is much higher than that of a container vessel of the same dimensions since the container vessel has much finer lines under water. Basically, if the two vessels are travelling at the same speed then the container vessel will consume less fuel but since containers vessels are suppposed to travel at twice the speed of a bulk carrier. the bulk carrier in practice consumes less fuel providing the two ships are the same size,
Does increase in load increases fuel consumption?
Of course, the more weight the car has to push the slower it will go so to keep the same pace you will need more gas intake to go faster.
Does running the air condition cause car to use more coolant?
No... But it increases fuel consumption
