Designing a Turbine and Compressor: Challenges and Considerations

In summary, the project involves designing a turbocharger for high temperature gas recirculation in a laboratory experiment. It can be done with either existing parts or from scratch. To carry out the design, it is recommended to use existing parts and match them to the required pressure and flow. Designing a new one would be a challenging and potentially dangerous task due to the high rotational speeds. Additionally, a high enthalpy gas supply is needed, so an air compressor may be a better option if the lab does not have that. The calculations for the design will start with determining the required flow.
  • #1
sxe545
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i am doing a project which involves me designing a turbine and compressor based on the turbocharger principles. i was wondering if anyone knew of an easy way to carry this out. any help would be excellent!
 
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  • #2
Depends on exactly what you are doing for the project. Are you designing from scratch or using existing parts, what's the application?
 
  • #3
the idea is for high temperature gas recirculation for a laboratory experiment. we're basically designing a turbocharger to do it but with a couple of modifications. it can be designed from scratch or with existing parts which ever would be easiest for us to carry out. we know the flow rate we need but from sure where to go from there.
 
  • #4
Go for an existing one and match it to your pressure/flow requirements. Look for compressor/turbine maps information, and start from there. Designing/manufacturing a new one will result in a daunting task and a very dangerous one, as the rotational speeds on those things are high enough to make the smallest unbalance a potential catastrophe...
 
  • #5
I absolutely agree with Gonzalez. These things rotate at 100,000 rpm or more so. You will need a high enthalpy gas suply. Does you lab have that?
If you just need air supply you might just want to go with an air compressor. If you build a closed loop system the gas will heat up. If you need higher temperatures you can install electric heaters downsteram of the pump. Every calculation starts with the demand of flow calculation. If you want to use a turbocharger you will also need to know your supply.
 

1. What is the purpose of a compressor and turbine in an engine?

A compressor is used to pressurize air before it enters the combustion chamber, allowing for more efficient combustion and increased engine power. A turbine, on the other hand, is used to extract energy from the exhaust gases and power the compressor.

2. How are compressor and turbine designs optimized for specific applications?

Compressor and turbine designs are optimized through various factors such as blade shape, number of stages, and flow path geometry. These factors are tailored to the specific needs of the engine, such as desired power output, efficiency, and operating conditions.

3. What are the key differences between axial and centrifugal compressors and turbines?

Axial compressors and turbines have a straight-through flow design, with the air or exhaust gases flowing parallel to the axis of rotation. Centrifugal compressors and turbines, on the other hand, have a radial flow design, with the air or exhaust gases flowing perpendicular to the axis of rotation. This results in different performance characteristics and applications for each type.

4. How do compressor and turbine designs impact engine performance and efficiency?

The design of a compressor and turbine can significantly impact engine performance and efficiency. A well-designed compressor can increase the pressure of incoming air, allowing for more efficient combustion and increased power output. Similarly, a well-designed turbine can extract more energy from the exhaust gases, increasing overall efficiency.

5. What advancements have been made in compressor and turbine design in recent years?

In recent years, advancements in materials, aerodynamics, and computational tools have greatly improved compressor and turbine designs. This has led to more efficient and powerful engines, with increased reliability and durability. Additionally, the use of additive manufacturing techniques has allowed for more complex and optimized designs to be produced, further improving performance.

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