A PROPOSED MATHEMATICAL MODEL FOR THE VELOCITY PROFILE INTERNALLY TO A CONICAL DIFFUSER

Authors

  • D. L. M. Barbosa Universidade Federal do Pará
  • D. A. T. D. R. Vaz Universidade Federal do Pará
  • J. R. P. Vaz Universidade Federal do Pará
  • S. W. O. Figueiredo Universidade Federal do Pará
  • M. O. da Silva Universidade Federal do Pará
  • C. J. C. Blanco Universidade Federal do Pará
  • A. L. A. Mesquita Universidade Federal do Pará

DOI:

https://doi.org/10.5380/reterm.v12i2.62050

Keywords:

DAWTs, diffuser, renewable energy

Abstract

The use of diffusers around of the horizontal-axis wind turbines have been widely studied, since the diffuser provides an improvement in the turbine power coefficient. These diffusers are often called Diffuser Augmented Wind Turbines (DAWT’s). The DAWT’s have the feature to make efficiency exceeding the Betz limit (maximum energy flow extracted = 59.26%), due to the increasing of the internal mass flow by influence of the diffuser presence. Thus, the present work proposed a mathematical model describing the behavior of the velocity profile internally to a diffuser according to the characteristics of flow and geometry of a conical diffuser. The model results were compared with experimental data and showed good agreement.

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Published

2013-12-31

How to Cite

Barbosa, D. L. M., Vaz, D. A. T. D. R., Vaz, J. R. P., Figueiredo, S. W. O., da Silva, M. O., Blanco, C. J. C., & Mesquita, A. L. A. (2013). A PROPOSED MATHEMATICAL MODEL FOR THE VELOCITY PROFILE INTERNALLY TO A CONICAL DIFFUSER. Revista De Engenharia Térmica, 12(2), 69–72. https://doi.org/10.5380/reterm.v12i2.62050

Issue

Vol. 12 No. 2 (2013)

Section

Ciência/Science

License

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