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How does a jet engine work?

2023-03-13 11:17:17

The jet engine sucks in a large amount of air and generates forward thrust by releasing it as a high speed gas jet. They are designed to allow aircraft to fly faster than propeller aircraft. Through their development and refinement over the past 65 years, commercial air travel has become more practical and informative, and the world has opened for business and leisure travelers.

"A typical jet engine is a gas turbine," said Jeff Defoe, a postdoc assistant at the Massachusetts Institute of Technology's Gas Turbine Institute. "The easiest thing is that it consists of a compressor whose blades rotate very quickly like blades, takes in air and absorbs it into high pressure gas, then fuel is injected into the gas and ignited. High pressure high temperature gas "

This high pressure and high temperature combustion gas stream now passes through a turbine - extracting energy from the gas - essentially another set of blades - to reduce pressure and temperature. "The turbine draws gas through the engine, draws it through the nozzle from the back, dramatically increases the speed at the expense of pressure - the pressure decreases as the speed increases," Defoe said. "This is the power of the exhaust gas and it is possible that it will advance the aircraft"

In addition to jet engine compression / fuel ignition / turbine output, the surrounding enclosure also makes it more efficient than the exposed propeller engine. "Without the outer casing around it, the air seen by the propeller fires towards it at the speed of the airplane," Defoe said. "This limits the speed at which the propeller rotates before the thrust gradually decreases and limits the flight speed of the aircraft.The outer casing of the jet engine keeps the air entering the engine almost the same regardless of the flight speed Keep it fast.

Currently, jet engines are further advanced than the basic turbine structure described above. Now they have a huge fan in front of them, instead of emitting gas directly from behind, it powers the previous fan through the second turbine. The old jet engine will inhale less air and accelerate, but the new jet engine will inhale more air and accelerate. As a result, the engine will use far less energy. "Until the 1970s, the Pacific flight had to be stopped," Defoe says.

At Gas Turbine Laboratories, Defoe and colleagues have decided to remove the engine from the wing and place the air molecule next to the fuselage, so as to make the jet engine more quiet and efficient by considering the design change I am working hard. Friction Friction Maximum jet engines can have fans with diameters greater than 10 feet, but they may be small enough to fit in the palm of your hand. It is worth noting that large gas turbines manufactured using the same principles as jet engines are also used for power generation at natural gas power plants.

Pulse jet engines (I explained now) have no meaning in space travel. Before I started publishing this article as an example of Internet troll, I went out. This is the mechanism of the pulse jet engine. If they do well, the pulse jet is expected to revolutionize air movement (but not to space travel). They rely on deflagration (when you burn objects under relatively low pressure) and the material slowly escapes (slow speed like subsonics is not as slow as you will get at 6 o'clock).

We are terrible for space travel ... We really do this (Earth Prison # 1) This is the right explosion like a big bang, this is the complete meaning of the Pulse Detonation Engine (PDE). where. The pulse detonation engine is a pulse jet engine based technology, but the PDE is more powerful. NASA is lagging behind in this area. Russian RosCosmos (equivalent to NASA but Russia) developed a prototype engine. I know that Korean Solo seems to put a tape on Millennium Falcon (#StarWarsTrilogy), but I believe it is legal. Well, what did that ... I blew away the air and gas from the rear and made it advance (not joking), but I could not understand the pulse detonation engine without knowing the pulse jet engine

Since the aerodynamic limit of the propeller is not suitable for jet propulsion, jet aircraft are driven by jet engines. These engines are much more powerful, relatively quieter, and work well at higher altitudes with a given size and weight than reciprocating engines. Jet engine deformations include ramjet engines and scramjet engines that rely on high speed airspeed and intake geometry to compress combustion air prior to fuel introduction and ignition. The rocket engine provides thrust by burning fuel with oxidant and exhausting gas through the nozzle