Designing a Turbine and Compressor: Challenges and Considerations

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SUMMARY

This discussion focuses on designing a turbine and compressor based on turbocharger principles for high-temperature gas recirculation in a laboratory experiment. Participants recommend utilizing existing turbocharger components to match specific pressure and flow requirements, as designing from scratch poses significant risks due to high rotational speeds exceeding 100,000 RPM. Key considerations include ensuring a high enthalpy gas supply and performing accurate flow demand calculations. Electric heaters can be integrated downstream to achieve higher temperatures if necessary.

PREREQUISITES
  • Understanding of turbocharger principles and components
  • Knowledge of flow rate and pressure requirements in gas systems
  • Familiarity with compressor/turbine maps for performance analysis
  • Basic principles of high-temperature gas dynamics
NEXT STEPS
  • Research existing turbocharger models and their specifications
  • Learn about compressor/turbine maps and how to interpret them
  • Investigate high enthalpy gas supply systems for laboratory applications
  • Explore methods for calculating flow demand in gas systems
USEFUL FOR

Engineers, researchers, and students involved in mechanical design, particularly those focusing on turbocharger applications and high-temperature gas systems.

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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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Depends on exactly what you are doing for the project. Are you designing from scratch or using existing parts, what's the application?
 
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.
 
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...
 
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.
 

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