Propulsive Engines: Turbojet, Turbofan and Turboprop A schematic arrangement of a turbo-jet engine is shown in Fig. 35.1. A corresponding T-S diagram is shown. The basic cycle for the turbojet engine is the joule or Brayton cycle. In process 0 to 1, the air entering from the atmosphere is diffused isentropically from velocity V a down to zero i.e., V 1 = 0. Mechanical Design of Turbojet Engines – An Introduction PDF fileAccording to the T-s diagram of an ideal turbojet engine, the thermal efficiency simplifies to Challenges of turbojet technology. 6 Twin-spool front fan turbo-jet (high by-pass ratio) Take-off thrust of 11 340 daN The CFM 56-5 jet engine The CFM 56-5 jet engine (Airbus A320, A 340) Schematic model of the jet engine Bearings Bearings Homemade Turbojet Engine : 5 Steps - Instructables Homemade Turbojet Engine: Attached is a documented process with instructions allowing reproduction of a turbo jet engine; primary construction materials include junkyard parts and scrap steel. From beginning to end this includes all of our steps and processes, with as much.. Difference Between Turbojet and Turbofan | Compare the More about Turbojet Engine. Cold air entering through the intake is compressed to high pressure in the successive stages of an axial flow compressor. In a common jet engine, air flow undergoes several compression stages, and at each stage, raising the pressure to a higher level.