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Numerical analysis of a bladeless turbine for refrigeration cycles.

Number: 2612

Author(s) : CHIKATIMARLA S. K., LEMKE P., KILLINGBECK B., GROLL E. A., LIU H., BRAUN J.

Summary

Bladeless turbines are a promising application for small scale power extraction and would be an ideal candidate for power extraction in refrigeration cycles. This paper presents the numerical analysis of a bladeless turbine by use of Computational Fluid Dynamics (CFD). An unstructured meshing approach with detailed refinement around the nozzle is presented as well as the numerical framework to analyze such turbines. Performance parameters include torque, power, and coefficient of discharge and are calculated for various operating conditions (reduced mass flows and reduced speeds). Additionally, two different nozzles are compared to each other to dissect the loss and performance. Finally, the experimental counterpart and preliminary data is presented and compared to the numerical simulation.

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Pages: 11 p.

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  • Original title: Numerical analysis of a bladeless turbine for refrigeration cycles.
  • Record ID : 30033018
  • Languages: English
  • Subject: Technology
  • Source: 2024 Purdue Conferences. 20th International Refrigeration and Air-Conditioning Conference at Purdue.
  • Publication date: 2024/07/17

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