How do I interpret turbine and compressor maps for optimal selection?

In summary, the conversation discusses the differences between turbines and compressors, as well as the factors to consider when selecting the best turbine or compressor for a particular application. They recommend referring to a turbo machinery text and provide links to additional resources for learning about map interpretation and turbocharging.
  • #1
Ask1122
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Hi all, does anyone knows of any good website that teaches you how to read turbine or compressor maps? And possibly teaches you how to select the best turbine / compressor for your particular application?

Thank you!
 
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  • #2
Turbines and compressors are quite different animals. Compressor curves are normally the predicted discharge pressure, efficiency, temperature, versus flow for one or more operating speeds. The curves are plotted from the surge point to the choke point.

For the compressor application, you need to let the manufacturer know the conditions you want to meet. This will consist of inlet and discharge pressures, inlet temp, gas composition, mass flow rate, driver speed if you have one. For the turbine, the steam inlet pressure and temp, exhaust temp., operating speed, power required, and available flow.

There's a good bit more that goes into the selection of turbines and compressors but this is a start.
 
  • #4
Garrett have a great series of introductions to turbocharging, including map interpretation.

http://www.turbobygarrett.com/turbobygarrett/tech_center/turbo_tech101.html
 
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  • #5
You can also read the http://www.gnttype.org/techarea/turbo/turboflow.html" too.
 
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1. What are turbine and compressor maps?

Turbine and compressor maps are graphical representations of the performance characteristics of a turbine or a compressor. They show the relationship between the mass flow rate, pressure ratio, and efficiency of the turbine or compressor at different operating conditions.

2. Why are turbine and compressor maps important?

Turbine and compressor maps are important because they help engineers and designers select the appropriate turbine or compressor for a specific application. By analyzing the map, they can determine the optimal operating conditions and ensure the efficiency and reliability of the turbine or compressor.

3. How are turbine and compressor maps created?

Turbine and compressor maps are created by testing the performance of the turbine or compressor at different operating conditions. The data is then plotted on a graph, with the mass flow rate on the x-axis and the pressure ratio on the y-axis. The efficiency is usually shown as a contour plot or color-coded lines.

4. What factors affect the shape of a turbine or compressor map?

The shape of a turbine or compressor map is affected by various factors, including the design of the turbine or compressor, the type of fluid being compressed, and the operating conditions. The shape can also be influenced by the presence of any additional components, such as intercoolers or aftercoolers.

5. How can turbine and compressor maps be used to improve performance?

Turbine and compressor maps can be used to improve performance by identifying the operating conditions that result in the highest efficiency. By selecting the optimal operating point on the map, engineers can improve the overall efficiency of the system and reduce energy consumption. The maps can also aid in troubleshooting and identifying potential issues with the turbine or compressor.

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