Developing Pump Performance Curves

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SUMMARY

This discussion focuses on developing pump performance curves for pulp slurries using a closed-loop lab-scale pipeline facility. The user successfully measured head versus flow rate for pure water at constant RPMs but faces challenges with slurry due to discharge limitations. Participants suggest utilizing a larger pump and applying pump scaling laws to translate results effectively. This approach allows for the analysis of flow rates while maintaining constant RPMs in a closed-loop system.

PREREQUISITES
  • Understanding of pump performance curves
  • Knowledge of closed-loop pipeline systems
  • Familiarity with pump scaling laws
  • Experience with flow rate measurement techniques
NEXT STEPS
  • Research methods for measuring flow rates in closed-loop systems
  • Learn about pump scaling laws and their applications
  • Investigate the use of larger pumps for slurry applications
  • Explore techniques for handling and measuring pulp slurries
USEFUL FOR

Engineers and researchers involved in fluid dynamics, particularly those working with pump systems and slurry applications in laboratory settings.

discreet544
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Hi Folks;

I am developing a series of pump performance curves for pulp slurries. I am running a closed-loop Lab-Scale pipeline facility. My question is about measuring head vs. flow rate at constant RPMs. I did it for pure water by continuously feeding the system with water, and gradually opening the discharge valve of the loop, while the RPM was kept constant, to record data for various flow rates. However, I can not do it for slurry, as I can't discharge it.

I see people have done it in papers, but I do not know how. I would really appreciate if you could help me. So here I rewrite the question:

On a closed-loop pipeline, how can I gradually increase/decrease the flow rate, while keeping the pump RPM constant ?

Thanks;
 
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Use a bigger pump and translate your results with the pump scaling laws?
 

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