Owenmck
Read the documentation!
So this is posted in rocketry, but I figured this was the best place for it.
I've been looking into jet engines recently, and I was wondering if you guys could help me clear some stuff up and get some stuff straight;
TURBOJETS
As I understand it, a turbojet has three main parts;
TURBOFANS
As far as I can tell, most if not all modern jet engines are turbofans. Turbofans are the same as turbojets, but with a few additional components.
Are there any other inherit advantages or disadvantages to either?
Is any of my understanding incorrect?
And if I was going to try to design / manufacture one, what would you guys recommend?
Thanks
I've been looking into jet engines recently, and I was wondering if you guys could help me clear some stuff up and get some stuff straight;
TURBOJETS
As I understand it, a turbojet has three main parts;
- Compressor, this takes in air and compresses it into as small a space as possible. It has spinning and stationary blades which move the air very fast and into a small area into the combustion chamber.
- The combustion chamber, where fuel is injected with the air and the mixture is ignited, producing thrust
- The turbine, which the hot gases from the combustion chamber pass through. They spin the turbine very fast, and the turbine drives the rotation of the compressor.
TURBOFANS
As far as I can tell, most if not all modern jet engines are turbofans. Turbofans are the same as turbojets, but with a few additional components.
- Firstly, the turbine also drives a large ducted fan blade at the front of the air intake. This causes more compression in the compressor, and also bypasses some air around the core of the engine, producing more thrust and also cooling the engine.
- Turbofans can be high or low bypass engines. A high bypass engine bypasses lots of air, such as in a passenger plane. The advantages of this are much lower noise and higher efficiency. The disadvantages are less thrust and a much larger engine
- Low bypass turbofans bypass less air, allowing more thrust, but less efficient and a lot louder.
Are these the only differences between turbofans and turbojets?Are there any other inherit advantages or disadvantages to either?
Is any of my understanding incorrect?
And if I was going to try to design / manufacture one, what would you guys recommend?
Thanks