Gas Turbines and Compressors

In summary, the conversation is about a person requesting help with questions related to gas turbines and compressors. The questions include topics such as the design of flow channels, pressure changes, blade curvature, and flow acceleration and deceleration. The person acknowledges that it is a lot of questions but is in need of answers. They suggest using a textbook or searching online for help.
  • #1
CHeema
3
0
Dear All!

I am in need of the follwing few questions regarding Gas Turbines and Compressors. It will be very nice and helpful if you people reply...an earliest reply will be appriciated

why the flow channel in turbomachines usually does not have parallel hub and casing walls

how the static pressure changes qualitatively between in- and outlet in an axial action and reaction turbine.

Sketch a qualitative pressure distribution over an airfoil.

why compressor blades feature little curvature and are comparatively thin whereas turbine blades are highly curved and tend to be thicker.

why it is more difficult to diffuse (i.e. decelerate) than to accelerate flow.

how the cross section area changes for a parallel wall annular flow channel upon change in flow angle.

Explain why the flow channel in turbomachines usually does not have parallel hub and casing walls and how you as designer would determine its shape.

I know these are a lot of questions but i am in real need of these...

Regards

Cheema
 
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  • #2
At least make an attempt at answering the questions...

You should be able to find something in your textbook, and if not, Google is your best friend.
 
  • #3
what is the difference between tensile and yield strength
 

1. What is a gas turbine?

A gas turbine is a type of internal combustion engine that converts the energy from burning fuel into mechanical energy that can be used to power machinery. It is commonly used in power generation, aviation, and industrial applications.

2. How does a gas turbine work?

A gas turbine works by pulling in air and compressing it using a compressor. The compressed air is then mixed with fuel and ignited, creating a high-pressure, high-velocity gas that expands through a series of turbine blades. The energy from the expanding gas is used to power a generator or propel an aircraft.

3. What is the difference between a gas turbine and a piston engine?

The main difference between a gas turbine and a piston engine is the way they produce power. In a piston engine, the fuel is burned in a confined space, causing the air inside to expand and push against the pistons. In a gas turbine, the fuel is burned in an open space, creating a high-pressure gas that is used to turn a turbine.

4. What is the purpose of a compressor in a gas turbine?

The compressor is a crucial component of a gas turbine as it is responsible for compressing the air before it enters the combustion chamber. This increases the air pressure and allows for more fuel to be burned, resulting in a more powerful and efficient combustion process.

5. How are gas turbines and compressors used in industry?

Gas turbines and compressors are used in a variety of industries, including power generation, oil and gas, and aviation. In power generation, gas turbines are used to produce electricity by driving generators. In the oil and gas industry, they are used to compress natural gas for transportation. In aviation, gas turbines are used to power aircraft engines.

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