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CFD-based correlation development for air side performance of wavy fin tube heat exchangers using 2mm-5mm tube diameters.

Number: pap. 2120

Author(s) : BACELLAR D., AUTE V., RADERMACHER R.

Summary

This paper presents new CFD-based correlations for wavy-finned tube heat exchangers with tube diameter ranging from 2mm to 5mm. Herringbone and smooth wavy fin profiles are analyzed in this study. All results are based on Computational Fluid Dynamics (CFD) simulations. The CFD models are verified using the Grid Convergence Index (GCI) method. The methodology implemented in this work consists of analyzing airside heat transfer and pressure drop characteristics by using Parallel Parameterized CFD (PPCFD) allowing one to simulate a large number of fin designs with significantly reduced engineering time. The resulting data is reduced into correlations using a linear stepwise regression algorithm that can be easily implemented in various heat exchanger analyses tools. The new equations for Herringbone fins predicts 96% and 94% of the data for heat transfer and friction within 15% relative absolute deviation, respectively. Similarly, the equations developed smooth wavy fins predict 94% and 93% of the data within 15% relative absolute deviation for heat transfer and friction, respectively.

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Pages: 10 p.

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Details

  • Original title: CFD-based correlation development for air side performance of wavy fin tube heat exchangers using 2mm-5mm tube diameters.
  • Record ID : 30018747
  • Languages: English
  • Source: 2016 Purdue Conferences. 16th International Refrigeration and Air-Conditioning Conference at Purdue.
  • Publication date: 2016/07/11

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