Thermodynamic cycle of jet engine

In summary, when designing a new jet engine, it is important to consider the Brayton Cycle as it is the basis for gas turbine engines. However, the specific operating parameters will depend on the initial requirements, such as the aircraft, speed, altitude, and type of jet engine. Some key parameters to consider are the combustion chamber temperature and compression ratio.
  • #1
vincentryan
29
0
How to choose thermodynamic cycle for designing new jet engine?
While designing new jet engine what parameters are important for choosing thermodynamic cycle?
what other parameters are important for jet engine designing?
 
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  • #2
Gas Turbine (Jet) Engines are described by the Brayton Cycle:
http://en.wikipedia.org/wiki/Brayton_cycle

You don't really get to choose what cycle you're using. If you use a different cycle, then you have something that's not a jet engine. Check out the link to get some more information on what happens inside.
 
  • #3
as minger said you have to keep in mind the brayton cycle while designing the jet engine ,
but the operating parameters are depending upon your initial requirements, i.e. for which aircraft are you designing, what is the speed of it, how much force required to propel it, its altitude, which type of jet engine you using, etc.

from that you have some parameters of the nods of the cycle and from that you an go further.
 
  • #4
Brayton Cycle.
Parameters for designing : Combustion chamber temperature ( you do not want to damage
your turbine ), Compression ratio. I think those two are quite important.
 
  • #5


I can provide a response to the content regarding the thermodynamic cycle of a jet engine and the factors to consider when choosing a cycle for designing a new jet engine.

The thermodynamic cycle of a jet engine is a crucial aspect in determining the efficiency and performance of the engine. It refers to the sequence of processes that occur within the engine, including the intake, compression, combustion, and exhaust phases. These processes are driven by the transfer of energy from the fuel to the air, resulting in the production of thrust.

When designing a new jet engine, the choice of thermodynamic cycle is a critical decision that must be made. There are several factors to consider when selecting a cycle, including the specific requirements and constraints of the engine, such as the desired thrust output, fuel efficiency, and operating conditions.

One of the key parameters to consider when choosing a thermodynamic cycle is the compression ratio. This refers to the ratio of the maximum and minimum pressures within the engine and has a significant impact on the efficiency and power output of the engine. Higher compression ratios result in better performance but also require stronger and more durable engine components.

Another important parameter is the turbine inlet temperature, which is the temperature of the air entering the turbine. This is a critical factor in determining the efficiency and power output of the engine, as higher temperatures allow for more efficient combustion and energy transfer.

Other important parameters to consider when designing a jet engine include the type and quality of fuel used, the design of the combustion chamber, and the aerodynamics of the engine components. These factors can affect the overall efficiency and performance of the engine and must be carefully considered during the design process.

In conclusion, the selection of a thermodynamic cycle for a jet engine is a complex process that requires careful consideration of various parameters and constraints. By carefully analyzing these factors, scientists can design more efficient and powerful jet engines that meet the specific requirements of their intended use.
 

Related to Thermodynamic cycle of jet engine

What is a thermodynamic cycle?

A thermodynamic cycle is a sequence of thermodynamic processes that occur in a closed system in order to convert heat into work. It is used to describe the operation of various engines, such as jet engines.

How does a jet engine use the thermodynamic cycle?

A jet engine uses the thermodynamic cycle in order to produce thrust. Air is compressed, fuel is added and ignited, and the resulting hot gas is expanded through a turbine, producing thrust to propel the aircraft forward.

What are the stages of the thermodynamic cycle in a jet engine?

The stages of the thermodynamic cycle in a jet engine are compression, combustion, expansion, and exhaust. In the compression stage, air is compressed by the compressor. In the combustion stage, fuel is added and ignited, producing hot gas. In the expansion stage, the hot gas expands through the turbine, producing thrust. In the exhaust stage, the remaining hot gas is ejected out of the engine.

How does the thermodynamic cycle affect the efficiency of a jet engine?

The thermodynamic cycle has a significant impact on the efficiency of a jet engine. A more efficient cycle means that more of the heat energy produced by the combustion process is converted into useful work, resulting in better fuel efficiency and performance.

What are some factors that can affect the thermodynamic cycle of a jet engine?

The thermodynamic cycle of a jet engine can be affected by various factors such as air temperature, altitude, and engine design. Higher air temperature can decrease engine performance, while higher altitude can increase it. Engine design, such as the number and type of compressor and turbine stages, can also impact the efficiency of the cycle.

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