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Fan revamping for a thermoelectric power plant

What is an axial fan? Features and applications

At the heart of a thermoelectric power plant, every component plays a crucial role in the overall efficiency and performance of the system. A striking example of innovation and performance enhancement is our recent revamping project involving the replacement of a large fan’s impeller made by CBI Engineering & Service.

 

Innovation in Blade Geometry

The key to our success was the design of a new blade with optimized geometry. This allowed for a significant increase in fan performance. Through advanced Computational Fluid Dynamics (CFD) simulations, we were able to test and refine the design to ensure optimal results.

 

  • Old impeller: flat-convex profile, with long flap plate for increasing
  • New Impeller: concave-convex profile, with new flaps

CFD Simulation

CFD Simulation Input:

  • Air Temperature: 150° C
  • Rotational Speed: 1000 rpm
  • Reference Pressure: 1 atm

 

The simulation showed a 15% increase in mass flow rate compared to the existing impeller, achieving a flow of 938,172 m³/h. This improvement was made possible by the advanced blade geometry, which reduced the formation of separation vortices, a problem present with the previous impeller.

Results and Comparisons

The comparison between the new and old impellers highlighted excellent results:

 

  • The new impeller demonstrated a 15% higher mass flow rate than the existing one, confirming the effectiveness of the new geometry.
  • The power absorbed by the new impeller was lower than the motor’s rated power, ensuring operational efficiency and safety.
  • The only drawback of the existing impeller was the separation vortex at the blade’s trailing edge, which negatively impacted performance.

 

Conclusion

The impeller revamping project yielded outstanding results, with a tangible improvement in fan performance. The new blade exceeded expectations, showing a significant reduction in separation vortices and enhanced airflow efficiency. 

 

This intervention showcases our ability to tackle and resolve complex challenges in the energy sector, reinforcing our commitment to innovation and performance optimization. With our expertise and cutting-edge technologies, we are prepared to develop and manage significant projects, providing efficient and high-quality solutions.

 

If you would like more information on how we can help improve the performance of your systems, please do not hesitate to contact us. We are here to turn challenges into opportunities and guide you towards new milestones of efficiency and success.

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