Turbine cooling - aircraft engine, Other Engineering

Turbine cooling  Airflow:

Figure illustrates the turbine cooling airflow of a typical gas turbine engine. The outward flow of cooling air is controlled by air seals of multi-groove construction and the arrangement is such that the turbine discs obtain the maximum possible cooling from the airflow. Interstage seals are incorporated and they are made in such a way that the front sections provide less restriction to the passage of air than the rear sections do. The result is that the rate at which the cooling air flows across the seals is sufficient to prevent any inward flow of hot gases. The front face of each disc receives a greater airflow than the rear.

1891_turbine cooling airflow.png

High pressure cooling air is also directed to the engine's nozzle guide vanes and turbine blades. These components, which are externally heated by the high temperature gas stream, are cooled by ducting air through air passages formed inside the items themselves. After completing its task, the air is exhausted into the engine exhaust gas flow and thence to atmosphere.

218_turbine cooling airflow1.png

Posted Date: 9/12/2012 3:48:48 AM | Location : United States







Related Discussions:- Turbine cooling - aircraft engine, Assignment Help, Ask Question on Turbine cooling - aircraft engine, Get Answer, Expert's Help, Turbine cooling - aircraft engine Discussions

Write discussion on Turbine cooling - aircraft engine
Your posts are moderated
Related Questions

Q . Write short note on blow molding. OR Explain the Thermoforming process.   What are the plastic fabrication method write in brief with neat sk

Ubiquitous network applications are generally designed for a whole network. This notion should be reflected in the way a network is programmed. We believe that providing abstractio

can u help me with a reliabilty assignment

find the newton raphson iterative formula for a reciprocal of a number N and hence find the value of 1/23.correct to 5 place of decimal

Changes in temperature and pressure: The changes in temperature and pressure of the gases through a gas turbine engine are illustrated in Figure 1.5 The efficiency with which t

Speed control in Aircraft Engine: Because the APU is designed to run at a constant rpm, some means must be provided to control this speed. Such a control device is known as a

QUESTION 7 As a forensic materials expert – you have been asked to identify a metallic powder found on the clothing of someone suspected of fabricating an incendiary device used i

differences between blast , reverbatory and electric furnaces

How do comets get their tails? - Most comets stay frozen in the outer solar system. Only a few enter the inner solar system where they can grow tails. - When a comet nears the sun