The Three Scientific Concepts Regarding The Gas Turbine Engine

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Q1) What are the three main scientific concepts regarding the Gas Turbine Engine
1. Entropy and the Laws of Thermodynamics
 Definition:
The first law of thermodynamics states that the total energy of the system is constant and that energy can neither be created nor destroyed and can only transform from one form to another. This means that we can't create noting from something, and we can't create something from nothing. Energy exists and cannot become nonexistent and nonexistent energy cannot become exist. The first law makes use of the key concepts of internal energy, heat, and system work. It is used extensively in the discussion of heat engines.
 Example:
An example of first law of thermodynamics is when a fan is on, the motor heats up;
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The gas turbine will first intake of air and possibly fuel, and then Compression of the air and possibly fuel, after that Combustion, where fuel is injected if it was not drawn in with the intake air and burned to convert the stored energy, finally expansion and exhaust, where the converted energy is put to use, which, in turn, propel the airplane. In some modern environments the cycles are described as SUCK, SQUEEZE, BANG, BLOW. Every joule of heat released by combustion of the fuel could be extracted as work at the output shaft. Such an engine would operate at 100 percent …show more content…
Bernoulli’s Theorem
 Definition:
This principle states that if the velocity of a gas or liquid is increased its pressure will decrease. The opposite is also true. If the velocity of a gas or liquid is decreased its pressure will increase. This fact relates directly to the law of conservation of energy.

 Example:
A more useful example is provided by the functioning of a perfume bottle: squeezing the bulb over the fluid creates a low pressure area due to the higher speed of the air, which subsequently draws the fluid up.
 Concept to work gas turbine engine:
Bernoulli discovered that air acts as an incompressible fluid would act when flowing at subsonic flow rates. Air is a bit different than a fluid although it acts as though it were a fluid through an orifice, meaning that by compressing it tightly, one could compress tiny molecules of air into a very confined area, mix in fuel in its vapor form, and ignite the fuel air mixture. Igniting the fuel and air forces the mixture to covert its stored potential energy into thermal and mechanical energy, turning the rear turbine blades.

Q2) Sketch the Brayton Cycle graph & a High Bypass Turbo Fan (HBTF) & give a description of the work cycle of gas through a HBTF engine at each

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