Calculating reduction in static temperature and pressure

In summary, when air is induced into a gas turbine inlet, the increase in velocity will cause a decrease in static temperature and pressure. To calculate these reductions, you can use the Mach number and total pressure. It is important to analyze whether condensation will occur, and this can be done by plotting the data on a T-s diagram and calculating the properties. The dynamic pressure can also be determined using the speed of the air and Bernoulli's equation.
  • #1
Aeroengie
2
0
When air is induced into a gas turbine inlet, the increase in velocity of the air will lead to an associated reduction in static temperatue and static pressure.
How do you calculate these, that is, reduced static temp and pressures, given only Mach number, gamma, and perhaps total pressure ?

The whole idea is to analyse whether condensation will take place or not. Kindly help.
Thanks.
 
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  • #2
It depends on the pressure to which the air is expanded. Plot the things on a T-s diagram, & properties can be calculated
 
  • #3
Not sure what you mean by gamma, but last I checked can't isn't total pressure the sum of static and dynamic. Since you have the speed of the air you should be able to determine the dynamic pressure. Investigate bernoulis equation
 

Related to Calculating reduction in static temperature and pressure

1. What is the purpose of calculating reduction in static temperature and pressure?

The purpose of calculating reduction in static temperature and pressure is to determine the change in these variables as a fluid flows through a system. This information is important in various engineering applications, such as designing efficient heat exchangers or predicting the performance of gas turbines.

2. How do you calculate the reduction in static temperature and pressure?

The reduction in static temperature and pressure can be calculated using the Bernoulli's equation, which relates the changes in fluid velocity, pressure, and elevation. Other methods, such as the energy equation or the ideal gas law, may also be used depending on the specific system and assumptions.

3. What factors affect the reduction in static temperature and pressure?

The reduction in static temperature and pressure is affected by various factors such as the velocity of the fluid, the density and viscosity of the fluid, the geometry of the system, and the presence of any obstructions or obstacles in the flow. Additionally, changes in elevation and the type of fluid being used can also impact the reduction in static temperature and pressure.

4. Can the reduction in static temperature and pressure be negative?

Yes, the reduction in static temperature and pressure can be negative. This indicates that the temperature and/or pressure of the fluid has increased as it flows through the system. This can occur, for example, in compressors or pumps where the fluid is being compressed and its energy is increased.

5. How is the reduction in static temperature and pressure used in real-world applications?

The reduction in static temperature and pressure is used in various industries and fields, such as aerospace, chemical engineering, and thermodynamics. It is used to design and optimize systems for efficient and safe operation, as well as to troubleshoot and diagnose issues with existing systems. Additionally, it is also used in research and development to improve the performance of various engineering systems.

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