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    ARTICLE

    EXPERIMENTAL AND 3D-CFD STUDY ON OPTIMIZATION OF CONTROL VALVE DIAMETER FOR A CONVERGENT VORTEX TUBE

    Seyed Ehsan Rafiee*, M. M. Sadeghiazad

    Frontiers in Heat and Mass Transfer, Vol.7, pp. 1-15, 2016, DOI:10.5098/hmt.7.13

    Abstract The aim of this investigation is study on separation phenomenon inside a special vortex tube affected by structural and physical factors including; throttle diameter, nozzle number and injection pressure as well as the parametric optimization based on separation efficiency using experimental and 3D-CFD methods. The results show that convergent VT with Dth=5.5mm provides 30.01% and 20.04% higher cooling and heating effectiveness compared to basic model. As another result, the higher injection pressure, the higher cooling effectiveness. The cooling effectiveness improves (16.86%) with increase in slot number up to N=4, then decreases. The maximum disagreement between More >

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