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Jet Engine
- 2. Please Note! This presentation will be divided into two; Jet Engine Fundamentals and the Advancements in Jet Engines.
- 3. Introduction to Jet Engines In this section, I'll quickly introduce you all to Jet propulsion Uses and Types of Jet Engines What are the types of Jet Engines and what are they used for? History of Jet Engines Who invented the Jet Engine? Well, we'll talk about it in this section General Physical Principles How do Jet Engines work? We'll discuss that also 02 01 04 03
- 4. CHAPTE R Introduction to Jet Engines 1
- 5. Introduction to Jet Engines A Jet Engine is a type of reaction engine discharging a fast-moving jet that generates thrust by jet propulsion.
- 6. CHAPTE R History of Jet Engines 2
- 7. History of Jet Engines The principle of the Jet Engine is not new; however the technical advances necessary to make the idea work did not come to fruition until the 20th century.
- 8. History of Jet Engines Historians tried to trace the origin of jet engines back to middle ages, and the principles used by the Chinese to send their rockets and fireworks was similar to that of a Jet Engine.
- 9. History of Jet Engines However, the real history of Jet Engines started with Frank Whittle. Between the 1600s and World War II, many scientists experimented with hybrid engines to propel aircraft. Many used one of the piston engine's forms - Including air-cooled and liquid- cooled inline rotary and static radial engines - as the power source for aircraft.
- 10. CHAPTE R Uses and Types of Jet Engines 3
- 11. Uses of Jet Engines Jet Engines power jet aircraft, cruise missiles, and unmanned aerial vehicles. In form of rocket engines, they power fireworks, model rocketry, spaceflight, and military missiles.
- 12. Uses of Jet Engines Jet Engine designs are frequently modified for non-aircraft applications, as industrial gas turbines or marine powerplants. These are used in electrical power generation, for powering water, natural gas, or oil pumps, and providing propulsion for ships and locomotives.
- 13. Types of Jet Engines Gas turbines are rotary engines that extract energy from a flow of combustion gas. These include Pulsejets, Motorjets and Pulse detonation engines. (I'll explain them in a bit) Ram compression Jet Engines are airbreathing engines similar to gas turbine engines and they both follow the Brayton Cycle. Turbine powered Non- continuous combustion Ram compression
- 14. Types of Jet Engines: Turbine Powered Turbofans differ from turbojets in that they have an additional fan at the front of the engine, which accelerates air in a duct bypassing the core gas turbine engine. A Turbojet engine is a gas turbine engine that works by compressing air with an inlet and a compressor, mixing fuel with the compressed air, burning the mixture in the combustor, and then passing the hot, high pressure air through a turbine and a nozzle. Turbofan Turbojet
- 15. Other Types of Jet Propulsion The rocket engine uses the same basic physical principles of thrust as a form of reaction engine. Combined-cycle engines simultaneously use two or more different principles of jet propulsion. A water jet, or pump- jet is a marine propulsion system that utilizes a jet of water. Rocket Hybrid Water Jet
- 16. Introduction to Jet Engines In this section, I'll quickly introduce you all to Jet propulsion Uses and Types of Jet Engines What are the types of Jet Engines and what are they used for? History of Jet Engines Who invented the Jet Engine? Well, we'll talk about it in this section General Physical Principles How do Jet Engines work? We'll discuss that also 02 01 04 03
- 17. CHAPTE R General Physical Principles 4
- 18. General Physical Principles All jet engines are reaction engines that generate thrust by emitting a jet of fluid rearward at relatively high speed. The forces on the inside of the engine needed to create this jet give a strong thrust on the engine which pushes the craft forwards.
- 19. Introduction to Jet Engines In this section, I'll quickly introduce you all to Jet propulsion Uses and Types of Jet Engines What are the types of Jet Engines and what are they used for? History of Jet Engines Who invented the Jet Engine? Well, we'll talk about it in this section General Physical Principles How do Jet Engines work? We'll discuss that also 02 01 04 03
- 20. Final Chapter: Advancements in Jet Engines
- 21. Revolutionary Design! This is a screenshot I took from GE (General Electric) website. They have been working on the world's first open-rotor aircraft engine. The fan at the front of this design is "open" because, unlike other turbofan engines, It isn't surrounded by a case. This open fan can help provide significant improvement in propulsive efficiency. A key to reduced emissions and fuel consumption.
- 22. Revolutionary Design! This one is from Airbus, They are trying to develop the world's first zero-emission commercial aircraft by 2035. They are trying to achieve this ambition with Hydrogen propulsion. All three ZEROe concepts are hybrid-hydrogen aircraft. They are powered by hydrogen combustion through modified gas turbine engines. Liquid hydrogen is used as fuel for combustion with oxygen. In addition, hydrogen fuel cells create electrical power that complements the gas turbine, resulting in a highly efficient hybrid- electric propulsion system.
- 23. Plasma Jet Engine A Jet Engine (a thruster prototype) that turns electricity directly into thrust using plasma propulsion. This was done by a professor at Wuhan University named Jau Tang. With no fossil fuels required, plasma propulsion is achieved by using microwaves to energize compressed air into a plasma state and shooting it like a jet.
- 24. Plasma Jet Engine A Jet Engine (a thruster prototype) that turns electricity directly into thrust using plasma propulsion. This is a ground breaking technology from China! Imagine a thruster that doesn't require tanks. Sort of like Iron Man's suit. The goal of this technology is to try and use electricity and air to replace gasoline.
- 25. Electrofuels Commercial plane refueling using new electrofuels that could help cut emission from the aviation industry Electrofuels are produced by combining hydrogen with carbon from CO2. All planes today are suitable for this fuel and no adaptations or changes would be required to be made to the aircraft or it's engines for it to work.