How does a turbofan engine work?

Answer 1

it works by how the pilot operates it. Engine start on the top of the head location. the pilot pulls the switch down know as engine ignition. It would start the turbofan and it would be blowing fast

That is completely wrong!! Whoever wrote the above knows nothing about Aerospace Engineering and needs to find something different to do in their lives. The Turbofan jet engine is the most commonly used engine on a commercial airliner such as a Boeing 747 or a 737. Basically an enormous fan sucks in lots of air, which is then separated into two groups: around 80% goes into the bypass duct, and stays cool, while the small amount that remains goes through the core. In the core, the air is pressurized first in the Low Level Compressor, then pressurized even more in the High Level Compressor. This extremely pressurized air is then forced through the Combustor, where fuel is injected into it and then ignited. This creates very hot air, and is forced through a series of Turbines. After this, the cool air from the bypass duct is mixed with the hot air from the core and is forced out of the Nozzle in an hourglass shape to create thrust. This is exactly how a Turbofan Engine works.

Answer 2

A turbofan is an Cold Air Unit that lowers the temperature of the air passing through it. The air is made to work (reducing temperature) by turning the turbine and made to work even more (another drop in temperature) by turning the fan.

Answer 3

turbine as it is ; is used for power production mechanically or electrically.

gas turbines are turbines which run on high temperature high pressure gases expanding through them. the gases usually are helium and carbon di oxide.