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

Seyed Ehsan Rafiee | Zendy; Mohamad Sadeghiazad | Zendy

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

Author(s) -

Seyed Ehsan Rafiee,

Mohamad Sadeghiazad

Publication year - 2016

Publication title -

frontiers in heat and mass transfer

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.404

H-Index - 18

ISSN - 2151-8629

DOI - 10.5098/hmt.7.13

Subject(s) - thermal fluids , computational fluid dynamics , vortex , vortex tube , tube (container) , frontier , mechanical engineering , aerospace engineering , materials science , mechanics , engineering , heat transfer , physics , political science , thermal resistance , law

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 experimental and predicted values is 6.25%.

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