What are turbofans used for?
The turbofan was invented to improve the fuel consumption of the turbojet. It achieves this by pushing more air, thus increasing the mass and lowering the speed of the propelling jet compared to that of the turbojet. Cons of Turbofan Engines (A) Expensive to acquire, operate, and maintain; (B) high fuel consumption at low airspeeds and altitudes; (C) inefficient compared to turboprops; (D) emit environmentally harmful contaminants; (E) large diameter fan makes them unsuitable for supersonic aircraft (unless low BPR).Assuming the turbofan’s core and the turbojet are the same size, the turbofan pushes more air due to the bypass air. More thrust for the same amount of power means the turbofan does not need to burn as much fuel as the turbojet to create the same amount of thrust. This means that the turbo fan is more fuel efficient.The reaction of the expanded gas—the mixture of fuel and air—being forced through the turbine, drives the fan and compressor and blows out of the exhaust nozzle providing the thrust. Thus, the turbine has the task of providing power to drive the compressor and accessories.
What is turbo fan technology?
A turbofan engine is defined as a type of aircraft engine that generates thrust through two streams: a bypass stream from the fan and a core stream from the jet. It serves as a compromise between turboprop and turbojet engines, playing a crucial role in commercial aviation. Differences in fuels for turbofans vs turbojets turbofans and turbojets both operate on the same fundamental gas turbine cycle and generally use kerosene-based jet fuels, most commonly jet a or jet a-1.