Designing a Turbine and Compressor: Challenges and Considerations

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Discussion Overview

The discussion revolves around the design of a turbine and compressor based on turbocharger principles for a laboratory experiment involving high-temperature gas recirculation. Participants explore various approaches, including designing from scratch versus using existing components, and consider the specific requirements for flow rate and pressure.

Discussion Character

  • Exploratory, Technical explanation, Debate/contested, Experimental/applied

Main Points Raised

  • One participant inquires about an easy way to design a turbine and compressor, seeking assistance for their project.
  • Another participant asks for clarification on whether the design will be from scratch or using existing parts, and what the specific application is.
  • A participant states the project involves high-temperature gas recirculation and mentions the possibility of designing from scratch or using existing parts, expressing uncertainty about the next steps after determining the flow rate.
  • One suggestion is to use an existing compressor/turbine that matches the required pressure and flow, highlighting the complexity and dangers of designing a new one due to high rotational speeds.
  • Another participant emphasizes the need for a high enthalpy gas supply and suggests that if only air is needed, an air compressor might suffice. They also mention the importance of starting calculations with flow demand and considering additional heating elements if higher temperatures are required.

Areas of Agreement / Disagreement

Participants generally agree on the risks and complexities associated with designing a new turbine and compressor from scratch, but there are differing opinions on the best approach to take, particularly regarding the use of existing components versus custom designs.

Contextual Notes

Participants express uncertainty about specific requirements such as the gas supply and the implications of high rotational speeds. There is also a lack of consensus on the best design approach given the project's goals.

Who May Find This Useful

Individuals interested in turbine and compressor design, particularly in experimental or laboratory settings, as well as those exploring turbocharger applications in engineering projects.

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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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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