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D.B.SriHridai
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Good evening to all...I am troubling with a doubt that how a propeller differs from a fan regarding jet engines..
Thus, whereas all the air taken in by a turbojet passes through the turbine (through the combustion chamber), in a turbofan some of that air bypasses the turbine. A turbofan thus can be thought of as a turbojet being used to drive a ducted fan, with both of those contributing to the thrust.
Since the efficiency of propulsion is a function of the relative airspeed of the exhaust to the surrounding air, propellers are most efficient for low speed, pure jets for high speeds, and ducted fans in the middle.
Thank yohWork Hard Play Hard said:I'm just making an observation here which may or may not be the answer. A fan is stationary and displacing or moving a medium within its environment. A propeller isn't stationary. Its used to create movement by using a medium to displace itself. Putting the funky designs aside, both work by using rotational force on a wing design to create pressure differentials. Again I could be wrong but I think when the medium is the source of the applied force fans and propellers become turbines and impellers. An electric wind generator is a wind turbine, not a wind propeller.
A propeller and a fan are both devices used to move air, but there are some key differences between the two.
Propellers and fans both work by creating a pressure difference between the front and back of the device, causing air to move from high pressure to low pressure.
Propellers are most commonly used to power vehicles, such as airplanes and boats, by converting rotational motion into thrust.
Fans are typically used to circulate air and create a cooling effect in rooms or other enclosed spaces.
While a propeller can technically be used as a fan, it may not be very effective in creating a cooling effect. Similarly, a fan may not be able to generate enough thrust to power a vehicle like a propeller can.